Top JavaScript Developers
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 88 projectsDigis, a Fiverr company (NYSE: FVRR), excels in providing comprehensive web development and staff augmentation services. With a focus on custom website development, front-end and back-end development, they consistently deliver high-quality projects, demonstrating 100% positive feedback for their technical expertise and effective project management. Clients frequently highlight their reliability and seamless integration into existing teams, with 80% mentioning their exceptional communication skills and adaptability.
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$5,000+$50 - $99 / hr10 - 49Oradea, Romania
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See all 10 projectsTech Stack Apps is a versatile software development company specializing in customized solutions across various sectors, including mobile app development and project management optimization. Clients have consistently praised their technical expertise, attention to detail, and responsive communication, with 100% of reviewers highlighting their professionalism and timely delivery. Areas for potential improvement include more proactive communication during project updates.
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$5,000+$50 - $99 / hr10 - 49Surfleet, England
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See all 5 projectsAtomise is a web development company known for its exemplary custom website development and full-stack web development services. They have received overwhelmingly positive feedback, with 100% of reviewers highlighting their inclusive and collaborative approach, innovative design, and deep technical expertise. Clients appreciate their seamless project management and ability to deliver high-quality, strategically aligned solutions that exceed expectations.
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$5,000+$25 - $49 / hr10 - 49San Pedro Garza García, Mexico
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See all 4 projectsNewsoft Technologies is a software development company specializing in CRM development, software integrations, and app creation. Reviews show that 80% of clients appreciate their teamwork, programming knowledge, and professionalism, while 20% suggest improvements in delivery processes. Overall, Newsoft Technologies is recognized for aligning with client needs, offering competitive pricing, and ensuring successful project outcomes.
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$10,000+$25 - $49 / hr10 - 49Harpenden, England
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See all 5 projectsThis Is Software is a web development company specializing in front-end and back-end development for web applications. Clients praise their professional attitude, excellent communication, and problem-solving skills. Positive feedback accounts for 100% of the reviews, with clients highlighting timely delivery and ease of collaboration. Their work consistently meets deadlines and client expectations, providing great value for cost.
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$25,000+$25 - $49 / hr250 - 999Ahmedabad, India
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See all 47 projectsHidden Brains InfoTech is a web development company specializing in custom website development, web application development, and full-stack web development. With approximately 90% of reviews highlighting their professionalism, responsiveness, and project management excellence, clients commend their ability to deliver complex projects on time and within budget, ensuring high user engagement and system reliability.
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$10,000+$25 - $49 / hr50 - 249Sofia, Bulgaria
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See all 12 projectsBinerals is a web development company specializing in custom website development, web programming, and full-stack web development. With approximately 90% positive feedback, clients commend their project management, cost-effectiveness, and ability to deliver scalable, high-performance solutions. While minor issues with process management and communication were noted, Binerals' dedication to client success and flexibility in meeting business needs were consistently highlighted across reviews.
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$5,000+< $25 / hr50 - 249Greenville, SC
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See all 58 projectsAddWeb Solution is a web development company known for its full-stack web development services, offering expertise in Laravel, Vue.js, and WordPress. The company receives overwhelmingly positive feedback, with clients highlighting its strong project management, technical expertise, and proactive communication. Approximately 90% of reviewers praise their ability to deliver projects on time and within scope, resulting in scalable, high-performance web applications and digital platforms.
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$10,000+$25 - $49 / hr10 - 49Dublin, Ireland
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See all 26 projectsSquare Root Solutions is a full-stack web development company with an emphasis on custom website development and web application development. Their reviews, with a 100% positive feedback rate, consistently highlight their professionalism, clear communication, and ability to deliver on time. Approximately 50% of reviewers mentioned their flexibility and adaptability to changing project needs as a significant strength.
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$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
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See all 74 projectsATEAM SOFT SOLUTIONS is a versatile software development company, specializing in Full-Stack Web Development, web application development, and custom website development. The company consistently receives high ratings and positive feedback for its technical expertise, with about 85% of reviews praising their ability to meet client needs and deliver efficient solutions on time. They stand out for their commitment to customer satisfaction and responsive communication.
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$5,000+< $25 / hr50 - 249Ahmedabad, India
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See all 45 projectsTechuz InfoWeb Pvt. Ltd. is a web development company recognized for delivering a range of services including Website Development, Full-Stack Web Development, and Web Application Development. The company consistently receives high praise for their technical expertise, meeting deadlines, and delivering quality outcomes. Notably, 100% of reviewers commend their communication skills and technical proficiency, though some suggest room for improvement in project planning.
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$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
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See all 27 projectsArcanys is a custom website development and full-stack web development company, consistently praised for its flexibility, high-quality deliverables, and proactive team collaboration. With 100% positive feedback, clients commend their on-time delivery, effective communication, and technical expertise. Arcanys excels in web programming and online development, significantly enhancing project efficiency and software robustness.
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$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
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See all 57 projectsExperion Technologies is a web development company specializing in Full-Stack Web Development and Custom Website Development, offering services that include Web Programming and Web Application Development. Across their reviews, 100% of feedback is positive, highlighting their exceptional project management, timely delivery, and agile adaptation to clients' evolving needs. Clients consistently commend their robust communication and client-centric approach.
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$50,000+$150 - $199 / hr50 - 249New York, NY
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See all 30 projectsXWP is a specialized web development company renowned for its proficiency in WordPress and web performance optimization. Their reviews highlight exceptional project management, technical expertise in Full-Stack Web Development, and successful outcomes like improved Core Web Vitals and enhanced website functionality. Impressively, 100% of reviewers commend their communication and problem-solving skills, emphasizing a partnership-oriented approach with no noted areas for improvement.
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$1,000+< $25 / hr1,000 - 9,999New Delhi, India
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See all 116 projectsProbey Services is a comprehensive web development company specializing in creating secure, user-friendly platforms tailored to client needs, such as custom website development and full-stack web development. Reviewers consistently praise their attentive project management and ability to meet deadlines, with 100% reporting positive outcomes, including increased engagement and streamlined workflows. Their responsive designs and strategic insights make them a preferred choice for businesses seeking effective online solutions.
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$25,000+$100 - $149 / hr50 - 249Long Beach, CA
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See all 18 projectsOshyn is a web development company specializing in Sitecore CMS and full-stack web development, offering services like performance optimization, third-party integrations, and maintenance. With over 90% positive feedback, clients commend Oshyn for their technical expertise, responsive project management, and partnership approach, often integrating seamlessly with internal teams to deliver complex, scalable solutions across both front-end and back-end development tasks.
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$10,000+$25 - $49 / hr50 - 249Warszawa, Poland
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See all 38 projectsFulcrum is a full-stack web development company specializing in custom web and mobile application development. Across numerous reviews, a striking 90% of clients praised their effective project management, timely delivery, and high-quality results. Notably, 80% emphasized Fulcrum's impressive integration with client teams and their responsive communication. Areas for improvement included refining project estimate accuracy and enhancing English communication skills.
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$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 46 projectsS-PRO is a custom software development company specializing in Web Development and Web Application Development services. Across their reviews, 89% of clients commend S-PRO for their flexibility, communication, and reliability, even amid challenges like the Russian invasion. Roughly 70% of reviewers emphasize their impressive project management and innovative problem-solving skills, with multiple clients highlighting their ability to handle complex projects and deliver on time.
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$10,000+$50 - $99 / hr50 - 249Lakewood, CO
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See all 20 projectsValor Software is a full-stack web development company highly regarded for its expertise in web programming, front-end, and back-end development. Across numerous projects, the company has demonstrated exceptional technical skill and project management capabilities, with 100% of reviews praising their responsiveness and ability to deliver on time. Clients consistently highlight Valor Software's creativity, professionalism, and capacity to handle complex challenges, making them a recommended partner for custom website development and web application initiatives.
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$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 38 projectsTemy is a full-stack web development company that excels in software engineering and custom website development solutions. With an impressive 100% positive feedback rate, Temy is praised for timely deliveries, excellent communication, and a strong customer-first culture. Approximately 70% of reviewers commend their project management and proactive approach, highlighting their ability to meet diverse technical needs effectively.
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$1,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 25 projectsDRUM'N'CODE is a full-stack web development company specializing in custom website development, web application development, and technical support. Their reviews are overwhelmingly positive, with approximately 90% highlighting their technical expertise, timely delivery, and proactive communication. Clients frequently praise their ability to handle complex legacy systems, improve performance, and maintain a collaborative approach, ensuring project success and client satisfaction.
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$25,000+$25 - $49 / hr50 - 249Miami, FL
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See all 30 projectsWeSoftYou is a distinguished web development company known for its expertise in custom website development and full-stack web application development. Reviews highlight a 100% positive feedback rate, with clients praising their innovative solutions, efficient project management, and dedication to client success. Approximately 70% of reviewers emphasize WeSoftYou's ability to adapt flexibly to evolving project needs and their competence in delivering user-friendly, scalable platforms.
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$1,000+$50 - $99 / hr50 - 249McKinney, TX
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See all 29 projectsDarly Solutions is a web development company specializing in custom website development, full-stack web development, and web application development. With a focus on delivering projects on time and maintaining high levels of communication, 100% of their reviews highlight their professionalism and responsiveness. Reviewers consistently praise their technical competence, flexibility, and ability to integrate seamlessly with teams, making them a trusted partner for complex web development projects.
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$1,000+$25 - $49 / hr50 - 249Ivano-Frankivs'k, Ukraine
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See all 14 projectsiDeus is a distinguished web development company specializing in services such as Website Development, Custom Website Development, and Full-Stack Web Development. The reviews consistently highlight their professional approach, responsiveness, and ability to deliver projects on time, with approximately 90% of feedback being positive. Clients commend their technical proficiency and seamless project management, with 70% noting their impressive ability to produce user-friendly designs and scalable solutions.
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$25,000+$25 - $49 / hr10 - 49
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See all 66 projectsArounda is a professional company specializing in Web Design and Web Development services, offering expertise in UI/UX design and Webflow integration. Positive feedback accounts for approximately 80-90% of reviews, highlighting their professionalism, responsiveness, and ability to meet deadlines consistently. Clients commend their creativity, smooth communication, and adaptability, although some note room for improvement in initial planning and testing phases.
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$50,000+$200 - $300 / hr50 - 249Minneapolis, MN
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See all 5 projectsModern Tribe is a full-stack web development company specializing in custom website development and online development, particularly for educational institutions. Reviews highlight their expertise in WordPress, innovative design solutions, and responsive project management. Approximately 90% of reviewers commend their creative problem-solving and client-centric approach, while a few note areas for improvement in scope clarity. Overall, Modern Tribe consistently receives positive feedback for delivering high-quality, user-friendly websites.
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$25,000+$50 - $99 / hr250 - 999San Ġiljan, Malta
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See all 48 projectsValletta.Software: AI-Powered Software Development is a versatile firm specializing in Web Development and Web Application Development. The company consistently receives positive feedback, with reviews highlighting their transparency, effective communication, and ability to deliver timely and innovative solutions. Approximately 90% of reviews praise their project management and technical proficiency, making them a recommended partner for custom Web Dev projects.
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$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 48 projectsNERDZ LAB specializes in Website Development, Web Design, and Full-Stack Web Development, consistently delivering high-quality, scalable solutions tailored to client needs. Their reviews highlight a 100% project completion rate on time, with 90% of reviewers praising their exceptional communication and commitment to ownership. Clients often commend their proactive problem-solving approach and technical expertise, particularly in web application development and seamless back-end integrations.
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$25,000+$50 - $99 / hr250 - 999São Paulo, Brazil
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See all 35 projectsLuby Software is a highly regarded web development company specializing in custom website and application development, offering full-stack web development and web programming services. Reviews indicate a 100% positive feedback rate, highlighting their excellent project management, timely delivery, and effective communication. 60% of reviewers commend their commitment and adaptability, with several clients noting their passion and strategic partnership approach.
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$5,000+$50 - $99 / hr10 - 49Kropyvnytskyi, Ukraine
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See all 56 projectsSPLIT Development is a proficient web development company specializing in custom e-commerce solutions, particularly on the Shopify platform. With an impressive 100% positive feedback across reviews, clients consistently commend their responsiveness, communication, and ability to deliver on time. Approximately 60% of reviews highlight their expertise in web development and design, while their proactive approach and adherence to client needs further underline their reputation for excellence.
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$10,000+$25 - $49 / hr10 - 49Львів, Ukraine
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See all 38 projectsREDSTONE is a web development company specializing in custom website development and full-stack web development. The overall feedback from their reviews is overwhelmingly positive, with clients praising their professionalism, communication, and ability to deliver projects on time and within budget. Approximately 90% of reviewers highlighted REDSTONE's exceptional project management and innovative solutions, while some suggested minor improvements in QA processes.
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$25,000+$50 - $99 / hr50 - 249București, Romania
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See all 19 projectsExistek is a full-cycle software development company specializing in custom web development, web application development, and full-stack web programming. The company has received predominantly positive feedback, with over 90% of reviewers highlighting their effective project management, timely delivery, and excellent communication. Existek is praised for its technical expertise, reliability, and ability to tailor solutions to specific business needs, with reviewers particularly impressed by its flexibility and ability to understand complex workflows.
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$5,000+< $25 / hr250 - 999Hanoi, Vietnam
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See all 24 projectsAMELA Technology is a versatile company specializing in Web Development, offering services such as Full-Stack Web Development, Web Application Development, and Custom Website Development. The company receives overwhelmingly positive feedback, with over 95% of reviews praising their technical proficiency, professionalism, and ability to deliver projects on time and within budget. Clients frequently highlight their strong project management skills and responsiveness to customer needs.
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$25,000+$25 - $49 / hr250 - 999Houston, TX
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See all 82 projectsTekRevol is a comprehensive online development company specializing in web and mobile application development, including custom website development and web application development. The company is praised for its professionalism, transparency, and exceptional customer service, with 100% of reviewers highlighting their project management skills and responsiveness. Clients appreciate TekRevol for their flexibility, attention to detail, and ability to deliver high-quality, aesthetically pleasing solutions.
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$10,000+$50 - $99 / hr10 - 49Odesa, Ukraine
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See all 20 projectsTodor3D is a versatile web development company specializing in 3D web development, full-stack development, and AR/VR technologies. Reviews highlight their professionalism, technical expertise, and ability to deliver high-quality work on time, with 100% of feedback being positive. They are particularly praised for their adaptability and problem-solving capabilities, with numerous clients impressed by their efficiency and dedication to client satisfaction.
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$10,000+$50 - $99 / hr50 - 249Rzeszów, Poland
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See all 35 projectsSintra - Digital Business. Poland is a prominent web development company specializing in full-stack web development, custom website development, and e-commerce solutions, with expertise in Shopify and WordPress. Across all reviews, 100% of clients highlight their timely delivery and effective communication, while 60% commend their flexibility and problem-solving skills. Furthermore, their proficiency in web design and web application development is repeatedly praised, demonstrating their comprehensive service offering in the digital business domain.
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$25,000+$50 - $99 / hr250 - 999Kraków, Poland
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See all 52 projectsTechMagic is a versatile web development company specializing in full-stack web development and custom website development services. They consistently receive positive feedback for their professional communication and proactive project management, as highlighted by more than 80% of reviewers. Clients appreciate their adaptability and commitment to timelines, though some note minor delays during design phases. TechMagic's ability to deliver tailored, high-quality solutions is frequently commended by satisfied clients.
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$5,000+$25 - $49 / hr10 - 49Wrocław, Poland
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See all 9 projectsLama Media is a web development company specializing in Website Development, Web Design, and Full-Stack Web Development. Reviews highlight their professionalism, timely project management, and excellent communication, with 100% of clients expressing satisfaction and recommending their services. They are praised for their flexibility and approachability, consistently delivering high-quality, custom web solutions.
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$50,000+$100 - $149 / hr50 - 249Kraków, Poland
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See all 17 projectsRailsware is a full-stack web development company specializing in web application development, custom website development, and product management. The company is praised for its effective project management, high-quality code, and excellent communication skills. With a track record of successful partnerships, 100% of reviewers highlight their exceptional execution and ability to integrate deeply into clients' teams. The reviews indicate that Railsware excels in delivering complex, customized solutions, making them a reliable choice for more significant and intricate projects.
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$5,000+$50 - $99 / hr10 - 49Barcelona, Spain
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See all 33 projectsTeplin is a web development company specializing in custom website development, including e-commerce solutions, web application development, and front-end and back-end development. With a 100% positive feedback rate, clients emphasize their technical expertise, timely delivery, and excellent communication, often noting Teplin's ability to deliver tailored solutions that align closely with business needs and enhance user experience.
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$25,000+$100 - $149 / hr10 - 49Dallas, TX
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See all 4 projectsLucky Media is a web development company specializing in custom website development, web design, and web application development. With a 100% positive feedback rate, clients commend their proficiency in delivering projects on time and within budget, their innovative approach, and exceptional communication skills. Reviewers frequently highlight their ability to transform digital presence, enhance functionality, and provide proactive, reliable service.
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$25,000+$50 - $99 / hr250 - 999Beverly Hills, CA
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See all 44 projectsRootstrap is a versatile web and app development company specializing in Custom Website Development, Full-Stack Web Development, and Web Application Development. The overall feedback from clients is overwhelmingly positive, with a focus on their strong project management, responsiveness, and collaborative approach. Around 80% of reviewers highlighted their effective communication and strategic consultation, noting their ability to deliver high-quality, scalable solutions.
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$25,000+$25 - $49 / hr10 - 49Surat, India
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See all 5 projectsShunyavkash is a renowned web development company specializing in full-stack web development, website design, CRM integration, and IT strategy consulting. Their projects boast a high success rate, with positive outcomes such as a 72% increase in page speed and a 2.4x form submission increase. Reviewers commend their technical expertise, flexibility, and proactive communication, with 100% satisfaction in design fidelity and CRM sync accuracy. Common feedback highlights their exceptional responsiveness and solution-oriented approach, although some suggest improved technical documentation.
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$10,000+$50 - $99 / hr10 - 49Kuala Lumpur, Malaysia
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See all 12 projectsUpstack Studio is a custom website development company specializing in full-stack web development, web application development, and front-end development. Their reviews highlight an 80% positive feedback rate, emphasizing their responsiveness, transparency, and expertise in UX/UI and web design. However, some clients noted minor timeline challenges, suggesting room for improvement in project estimation.
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$5,000+$50 - $99 / hr50 - 249Kharkiv, Ukraine
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See all 20 projectsAnvilEight is a web development company specializing in full-stack web development, web application development, and custom website development. The company is consistently praised for its effective project management, responsive communication, and adaptability to client needs, as evidenced by 100% of reviewers highlighting their impressive communication and delivery. Additionally, clients appreciate AnvilEight’s flexibility, cultural alignment, and timely delivery, reflecting a strong commitment to client satisfaction.
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$5,000+$25 - $49 / hr50 - 249Dnipro, Ukraine
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See all 36 projectsKultprosvet is a distinguished web development company specializing in full-stack web development, custom website development, and web application development services. The feedback on their performance is overwhelmingly positive, with clients praising their ability to deliver projects on time and within budget, while demonstrating exceptional project management skills. Approximately 90% of reviews highlight their effective communication and keen understanding of client needs, complemented by their ability to offer innovative solutions.
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$1,000+$100 - $149 / hr10 - 49Reston, VA
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See all 11 projects321 Web Marketing is a web development and SEO agency that specializes in website development, custom website design, and online development, with a strong emphasis on SEO strategies. They have consistently delivered positive results, with reviews highlighting their ability to enhance web presence and SEO performance by up to 95%. Clients often praise their project management and strategic approach, with no significant areas for improvement mentioned.
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UndisclosedUndisclosed1,000 - 9,999Ho Chi Minh City, Vietnam
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See all 3 projectsCBTW APAC is a software development company specializing in custom software solutions, cloud consulting, and application management. The reviews reflect a 100% positive feedback rate, emphasizing their top-tier development, scalable architecture design, and effective collaboration. Clients commend their rigorous processes, quality of personnel, and commitment to understanding and meeting user needs.
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$50,000+$50 - $99 / hr250 - 999C1425BYF, Argentina
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See all 10 projectsCoderio is a comprehensive web development company specializing in web programming and custom website development. Their reviews are 100% positive, highlighting their high technical expertise and effective project management. Clients appreciate their smooth communication process, although initial communication challenges were noted and promptly addressed by the team.
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$5,000+$25 - $49 / hr50 - 249Estoril, Portugal
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See all 24 projectsSeedium is a reputable web development company specializing in custom website development, full-stack web development, and web application development. Across their reviews, 100% of clients commend their technical expertise, timely delivery, and seamless project management. Approximately 90% of reviews highlight Seedium's effective communication and flexibility, emphasizing their ability to transform client ideas into scalable, efficient web solutions.
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$10,000+$25 - $49 / hr50 - 249
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See all 17 projectsQualium Systems is a versatile web development company specializing in full-stack web development, web application development, and custom website development. Reviews highlight a strong cultural fit, exceptional project management, and a commitment to high-quality code with 100% positive feedback on timely delivery and adaptability. Their collaborative approach and innovative solutions consistently impress clients seeking reliable and efficient online development services.
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List of the Top 15 JavaScript Development Companies
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$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
50% Web Development75% JavaScript50% Other -
$75,000+$100 - $149 / hr50 - 249Vancouver, Canada
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
90% Web Development50% JavaScript10% Other -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$10,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.4/40.019.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development60% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
39.1/40.019.8/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.9/40.018/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.5/40.019.6/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$10,000+$50 - $99 / hr50 - 249Kuala Lumpur, Malaysia
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.8/40.019.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Web Development40% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.8/40.017/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$1,000+< $25 / hr250 - 999Boston, MA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38.8/40.019/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.2/40.018.2/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development33% JavaScript90% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.4/40.016.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$10,000+< $25 / hr250 - 999Kolkata, India
Ability to deliver
36.3/40.019/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
65% Web Development20% JavaScript35% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
38.2/40.018.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
28% Web Development15% JavaScript72% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.5/40.018.4/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249Chelsea, Australia
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$1,000+< $25 / hr1,000 - 9,999London, England
Ability to deliver
36.5/40.019.2/20 Reviews9.3/10 Clients & Experience8/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.2/40.016.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$25,000+$100 - $149 / hr50 - 249Long Beach, CA
Ability to deliver
36.2/40.018.2/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
100% Web Development40% JavaScript
Top JavaScript Development Agencies
A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.
Most agencies bundle multiple offerings so clients can access full product life-cycle support:
- Discovery workshops & technical consulting
- UI/UX design and prototyping
- Front-end SPA or PWA development
- Server-side development with Node.js or Deno
- API design, GraphQL, and microservices architecture
- QA automation & performance testing
- DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
- Post-launch maintenance and feature sprints
Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.
Clutch data shows project budgets range widely:
- MVP or small web app - $15,000–$50,000
- Mid-size product build - $50,000–$200,000
- Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.
- Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
- Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
- Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
- Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
- Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.
Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.
- Guaranteed timelines without discovery
- No access to source code repositories during the engagement
- Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
- Low developer retention or high turnover
- Vague pricing models or hidden fees
If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution
- Which JavaScript frameworks do you specialize in, and why?
- Can you walk me through a recent project with similar complexity?
- How do you ensure code quality—linting, peer reviews, automated tests?
- What is your approach to scalability and performance optimization?
- How will we communicate and track progress (tools, meeting cadence)?
- Who owns the intellectual property and source code upon project completion?
Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.
A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.
Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.