Top JavaScript Developers
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Featured
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 87 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development firm offering comprehensive solutions in custom website development, full-stack web development, and web application development. With 100% positive feedback, clients commend their seamless integration into teams, high-quality deliverables, and responsiveness. Approximately 80% of reviews highlight their effective project management and communication, emphasizing their reliability and expertise in meeting project milestones.
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$25,000+$50 - $99 / hr50 - 249Białystok, Poland
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See all 10 projectsInfinity Group is a versatile web development company specializing in full-stack web development, custom website development, and web application development, with expertise in platforms such as WordPress, Kentico, and Sitecore. Reviews highlight Infinity Group's technical proficiency, efficient project management, and responsive communication. Approximately 100% of reviewers commend their flexibility and proactive involvement, while no significant areas for improvement are noted across feedback.
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$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 4 projectsAssaptR is a full-stack web development company specializing in custom website development and design. Across their reviews, they are praised for their technical proficiency, creative web design, and commitment to delivering on promises, with 100% of reviewers highlighting timely delivery and excellent communication. Clients appreciate their understanding of business needs and ability to execute SEO-optimized, user-friendly websites.
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$1,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 2 projectssol.agency is a web development company specializing in front-end and back-end website development, brand identity creation, and online advertising. Feedback highlights their ability to consistently deliver projects on time, with 100% of reviewers praising their professionalism and collaboration. Some suggest minor improvements in communication, but overall satisfaction is high.
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$5,000+$50 - $99 / hr50 - 249Ahmedabad, India
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See all 2 projectsWebCodeGenie Technology Pvt. Ltd. is a versatile web development company specializing in Web Design, Custom Website Development, and Full-Stack Web Development across various platforms like Laravel, WordPress, and PHP. With 100% client satisfaction and commendable project management, they are praised for exceeding expectations and having a flexible team structure that efficiently allocates skilled developers to meet project needs.
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$25,000+$50 - $99 / hr10 - 49San Diego, CA
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See all 5 projectsNoMoBo is a versatile technology and design company specializing in software development, web design, and branding solutions. Across reviews, 100% of clients commend their professionalism, personalized service, and ability to meet project requirements effectively. Clients appreciate their responsiveness and quality output, with no areas for improvement noted, highlighting their commitment to exceeding expectations.
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$1,000+$100 - $149 / hr2 - 9Akron, OH
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See all 3 projectsWaking Digital is a web development company specializing in SEO and online development services. They are recognized for their attention to detail and expertise, with 100% of reviewers noting timely delivery and responsiveness. Clients report a significant improvement in search engine visibility, with monthly impressions increasing by 400% within two months.
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$5,000+Undisclosed10 - 49Buenos Aires, Argentina
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See all 2 projectsPortinos Digital Agency is a highly regarded digital agency specializing in brand identity, digital marketing, and website development. With a remarkable 100% positive feedback rate, clients consistently praise their creativity, responsiveness, and commitment to exceeding expectations. About 50% of reviewers specifically highlight their exceptional project management and innovative solutions, emphasizing a strong alignment with client values and a partnership-oriented approach.
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$5,000+$25 - $49 / hr10 - 49London, England
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See all 1 projectsWazobia Technologies is a web development company specializing in custom website development and full-stack web development. The reviews highlight their exemplary standards, flexibility, and seamless integration with the client's team. 100% of feedback is positive, emphasizing their excellent project completion times and effective communication, with no areas for improvement noted.
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$1,000+$50 - $99 / hr50 - 249Київ, Ukraine
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See all 9 projectsDashdevs is a full-stack web development company known for its expertise in custom website development and MVP platforms. Reviewers consistently highlight their organized, collaborative approach and proactive creativity, with 100% positive feedback praising their seamless communication and value-added service enhancements.
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$10,000+$50 - $99 / hr2 - 9Cape Town, South Africa
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See all 1 projectsLightstack is a mobile app development company recognized for its expertise in simplifying complex processes through technology, particularly in the legal sector. Their clients appreciate the team's transparency, communication, and collaborative approach, with 100% of reviewers highlighting a positive working relationship. While clients foresee growth, they emphasize the importance of maintaining their high service standards.
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$10,000+$50 - $99 / hr2 - 9București, Romania
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See all 1 projectsAppes is a web development company specializing in front-end development and platform enhancement. The overall feedback is overwhelmingly positive, with 100% of reviews highlighting their effective project management, adaptability, and proactive approach. Notably, 23% user retention increase underscores their impactful work, with clients praising their communication skills and seamless integration with existing teams.
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$5,000+$25 - $49 / hr50 - 249Kolkata, India
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See all 3 projectsSynergic Softek Solutions is a versatile software development company specializing in customized web solutions and app development. Overall, the feedback is overwhelmingly positive, with clients praising their efficiency, effective communication, and reasonable costs. Approximately 100% of reviewers mention their reliability and willingness to engage in collaborative problem-solving. The company is noted for delivering precise customizations and maintaining strong project management practices.
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$10,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 3 projectsDigiArtisan is a web development company specializing in website design and coding. With a strong emphasis on customer service and flexibility, they consistently deliver projects on time and within budget. All reviewers expressed satisfaction, highlighting the company's excellent performance and value for cost.
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$5,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 6 projectsRebel Trail Web Solutions is a web development company specializing in custom website development and web application development. Client reviews highlight their excellent project management and communication skills, with 100% positive feedback on these aspects. Customers praise their expertise in delivering custom solutions and seamless integration with existing systems, although some suggest expanding in-house service offerings.
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$10,000+$50 - $99 / hr10 - 49
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See all 5 projectsInvatechs Software is a comprehensive web development company specializing in full-stack and web application development, with expertise in both front-end and back-end development. Their clients commend their technical strategy and flexibility, with approximately 100% of reviewers highlighting their impressive project management and communication skills. However, potential clients should note the absence of in-house UX and design capabilities, although they can source these externally.
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$1,000+$50 - $99 / hr2 - 9
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See all 1 projectsElite Web Design is a web design company renowned for crafting visually appealing and high-converting websites. Feedback highlights impressive communication and efficient workflows, with 100% of reviewers noting a significant increase in conversion rates, such as a 25% rise, underscoring their effectiveness in achieving project goals.
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$1,000+$50 - $99 / hr2 - 9Ware, England
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See all 3 projectsHeavy Penguin is a web development company specializing in custom website development and web design. Reviews highlight their effective communication and industry expertise, with 100% of clients expressing satisfaction with their projects. Clients commend their ability to tailor solutions, resulting in increased user visits and positive customer feedback.
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$10,000+$50 - $99 / hr10 - 49L'viv, Ukraine
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See all 3 projectsDapplica is a web development company specializing in EOSIO blockchain projects, providing services in full-stack web development, including web programming and custom website development. One hundred percent of the feedback highlights their satisfactory project management, adaptability, and proficiency in handling complex technologies, with no areas for improvement identified.
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$1,000+$25 - $49 / hr10 - 49
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See all 3 projectsAstute Myndz is a web development company specializing in full-stack web development and web application development. Clients commend their efficient project management, excellent communication, and willingness to adapt to feedback, with 100% of reviewers praising their responsiveness and quality of work. Their ability to enhance user engagement and implement custom features is highly appreciated by clients.
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$1,000+$50 - $99 / hr10 - 49Clarinda, Australia
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See all 1 projectsMitash Digital is a web development company that specializes in custom website development and e-commerce solutions. Reviews highlight their responsive team and effective project management, with 100% of clients noting timely problem resolution. While clients appreciate their technical expertise, they suggest improvements in detailed reporting of technical issues. Overall, Mitash Digital demonstrates a commitment to client satisfaction and project success.
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$10,000+$50 - $99 / hr2 - 9Montevideo, Uruguay
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See all 5 projectsataraxy is a web development company specializing in custom website development and web application development. They receive overwhelmingly positive feedback, with 100% of reviewers highlighting their responsive project management and ability to align with client goals. Notably, ataraxy's proficiency in full-stack web development and their proactive problem-solving skills consistently impress clients.
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$1,000+$25 - $49 / hr10 - 49Bengaluru, India
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See all 7 projectsQualwebs is a dynamic web development company specializing in Custom Website Development, Web Application Development, and mobile solutions. Renowned for their agile approach and meticulous attention to detail, Qualwebs consistently delivers exceptional outcomes, with 100% of reviews highlighting their expertise, seamless project management, and ability to meet client needs efficiently. Their adept communication and project execution ensure a seamless collaboration experience.
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$5,000+$50 - $99 / hrFreelancerRzeszów, Poland
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See all 5 projectsPROGMATIQ is a web development company specializing in Website Development and Web Design, emphasizing custom solutions and responsive design. Client feedback highlights their professionalism, communication, and attention to detail, with a 100% satisfaction rate across reviews. Many clients praised their project management skills and technical expertise, particularly their ability to meet deadlines and provide ongoing support.
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$10,000+$50 - $99 / hr10 - 49Recife, Brazil
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See all 3 projectsMobix Software Studio is a versatile software development company known for its expertise in digital transformation, strategic guidance, and mobile app development. The company has received overwhelmingly positive feedback, with clients highlighting their effective project management, commitment, and comprehensive knowledge in technology and innovation. Approximately 100% of reviewers praised their problem-solving capabilities and seniority in software engineering.
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$1,000+$25 - $49 / hr2 - 9San Salvador, El Salvador
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See all 4 projectsARGOsoft Group is a web development company specializing in Website Development, Web Design, and Full-Stack Web Development. Across various projects, clients consistently praise their professionalism, timely delivery, and adaptability. Notably, 100% of reviewers commend their project management and customer service, citing excellent communication and a proactive approach. Clients appreciate their ability to exceed expectations and provide quality service, driving measurable outcomes like increased customer engagement and improved turnover.
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$5,000+$50 - $99 / hr10 - 49Odesa, Ukraine
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See all 1 projectsA-Devgroup is a web development company specializing in custom website development and online booking systems. The reviews indicate a 100% positive feedback, highlighting their professionalism, effective communication, and attention to detail. Notably, 100% of reviewers praised their responsiveness and ability to deliver projects on time.
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$1,000+< $25 / hr10 - 49Surat, India
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See all 10 projectsWeapplinse Technologies LLP is an app development company specializing in mobile applications and content management systems. The company receives overwhelmingly positive feedback, with clients praising their responsiveness, transparency, and proactive project management. Approximately 90% of reviewers commend their dedication to quality and timeliness, while others highlight their exceptional value for cost and alignment with client values.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 7 projectsAIMS INFOSOFT is a web development company specializing in custom website development, e-commerce solutions, and API integration. The firm consistently receives positive feedback, with 100% of reviewers praising their project management, effective communication, and technical expertise, particularly in WordPress and WooCommerce. Clients highlight their readiness to tackle challenges and deliver accurate, user-friendly solutions.
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$1,000+$100 - $149 / hr2 - 9Zürich, Switzerland
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See all 4 projectsPixels & Coconuts specializes in Website Development and Custom Website Development, providing services such as Full-Stack Web Development with a focus on Web Design and Web Programming. The company has received 100% positive feedback, with clients praising their outstanding communication and timely delivery. Approximately 90% of reviewers highlight their professionalism and unique collaborative approach.
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$10,000+$25 - $49 / hr50 - 249Pune, India
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See all 2 projectsThinkitive Technology Pvt Ltd is a proficient web development company, excelling in Full-Stack Web Development and Web Application Development. Their adaptability and technical competence are highly praised, with consistent delivery on budget and timeline targets. While 100% of reviewers commend their transparency and commitment, improvements in DevOps and release management are suggested.
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$25,000+$50 - $99 / hr50 - 249Riyadh, Saudi Arabia
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See all 2 projectsSharedTech is recognized for its expertise in Website Development and Web Design, offering services that include developing web portals with a focus on user experience (UX) design. The reviews highlight their professional project management, timely delivery, and ability to provide good value for cost, reflecting high customer satisfaction and usability.
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$1,000+< $25 / hr10 - 49L'viv, Ukraine
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See all 8 projectsKeplercode is a full-stack web development company specializing in website development, custom software, and web application development. Across reviews, 100% of clients highlight their impressive technical proficiency and exceptional responsiveness. Reviewers consistently commend their ability to deliver projects on time, meet client needs, and provide excellent customer service, with no significant areas for improvement identified.
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$5,000+$50 - $99 / hr50 - 249Chandigarh, India
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See all 11 projectsNETGAINS is a comprehensive web development company that excels in custom website development, web design, and online development services. The company consistently receives high praise for its project management, timely delivery, and exceptional client responsiveness, with 100% of reviews highlighting its professionalism and technical expertise. Clients commend NETGAINS for its ability to effectively handle diverse projects, including web programming and full-stack web development, ensuring successful outcomes and ongoing client satisfaction.
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$5,000+$50 - $99 / hr2 - 9Kyiv, Ukraine
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See all 4 projectsQPMSoft is a web development company excelling in Web Application Development and Custom Website Development. Reviewers commend their strong project management and communication skills, with 100% positive feedback highlighting timely delivery and effective problem-solving. Approximately 90% of reviews emphasize their proficiency in integrating complex systems and handling challenges efficiently.
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$10,000+$50 - $99 / hr10 - 49Novi Sad, Serbia
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See all 1 projectsSpawn Solutions is a digital platform development company specializing in creating comprehensive solutions for streamlining business processes. According to reviews, 100% of feedback highlights their exceptional project management, professionalism, and innovative problem-solving approach. Their ability to tailor solutions to unique business needs while maintaining clear communication and responsiveness is highly commendable.
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$1,000+$100 - $149 / hr2 - 9Chicago, IL
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See all 5 projectsSimply Smart Technology is an IT managed services company known for its responsive and comprehensive IT solutions. They consistently receive positive feedback, with clients highlighting their expertise, project management skills, and flexibility. Approximately 80% of reviewers emphasized their prompt responsiveness and ability to adapt to client needs. Their customer-centric approach and effective communication have left clients impressed with their ability to manage IT environments efficiently.
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$10,000+$25 - $49 / hr50 - 249
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See all 4 projectsGilzor is a web development company lauded for its robust capabilities in Custom Website Development and Full-Stack Web Development. With over 90% positive feedback, clients commend their strong project management skills and timely delivery. The efficient coordination between mobile and web departments has been highlighted by several reviewers.
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$5,000+$25 - $49 / hr10 - 49Bratislava, Slovakia
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See all 3 projectsTechband is a Web Development company specializing in both Front-End and Back-End Development, offering services such as Custom Website Development and Web Application Development. Reviews indicate a high satisfaction rate, with 100% of clients praising their rapid project delivery and strong e-commerce expertise. Clients also commend their cultural fit and effective communication.
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$1,000+$25 - $49 / hr50 - 249Hyderabad, India
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See all 2 projectsMicroPyramid is a full-stack web development company that excels in both front-end and back-end development, as evidenced by their comprehensive redesign of an online music lesson website. Overall, the reviews highlight their effective project management and prompt communication, with 100% of reviewers praising the improved user experience and functionality of their website solutions.
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UndisclosedUndisclosed10 - 49
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See all 6 projectsEmerge Digital, a company specializing in Web Development and Web Design, consistently receives positive feedback for its timely delivery, commitment to client needs, and exceptional project management. Approximately 100% of reviewers commend their punctuality and flexibility, with many highlighting their ability to translate client visions into successful outcomes, particularly in Website Development and SEO enhancements.
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$1,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 4 projectsRamlogics Technosoft Pvt. Ltd. is a web development company specializing in custom website development, web application development, and SEO. Reviewers commend their high-quality work and effective project management, with 100% expressing satisfaction. A recurring theme is the excellent value for money they provide, although clear communication is emphasized due to minor language barriers.
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$1,000+$25 - $49 / hr10 - 49
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See all 2 projectsOscar Studio is a web development company specializing in custom website development and web application development. Reviews highlight their commitment to client needs, proactive communication, and high-quality output, with 100% of reviewers expressing satisfaction with their work. However, 100% also noted the absence of an in-house designer as a potential area for improvement.
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$25,000+$50 - $99 / hr10 - 49L'viv, Ukraine
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See all 1 projectsUkiepro is a web development company that specializes in creating functional and user-friendly websites. With a focus on professional service, they successfully revamped a platform's design and integrated payment processing, doubling the client's revenue. Reviews highlight their professionalism and adaptability, although clear communication of project goals is advised for optimal collaboration.
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$1,000+$50 - $99 / hr2 - 9San Antonio, TX
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See all 2 projectsThink1 Designs is a web development company specializing in full-stack web development, custom website development, and web design services. They received overwhelmingly positive feedback, with 100% of reviewers highlighting their excellent project management and responsiveness. Clients commend their ability to deliver a modern, responsive, and user-friendly website, resulting in a significant increase in website traffic and engagement.
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$25,000+$25 - $49 / hr50 - 249
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See all 4 projectsDwarves Foundation is a web development company specializing in web application development, back-end and front-end development, and custom website development. Reviews indicate a strong emphasis on integrity and professionalism, with 100% of reviews highlighting their dedication and communication skills. While some logistical challenges were noted, clients were impressed by Dwarves Foundation's ability to streamline complex processes and deliver high-quality results.
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$50,000+$50 - $99 / hr50 - 249Beograd, Serbia
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See all 2 projectsHOOLOOVOO is a versatile software development company specializing in Java and React for both frontend and backend solutions. Reviews consistently highlight their high-quality deliverables and effective project management, with 100% of reviewers expressing satisfaction with their technical skills, collaboration, and the strategic value they bring as a partner. Their commitment to understanding client needs and delivering tailored solutions is also frequently praised.
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$5,000+$25 - $49 / hr10 - 49Bengaluru, India
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See all 13 projectsZethic Technologies is a Web Development company specializing in custom website development and full-stack web development. Across their reviews, 100% of clients praised their professional communication and timely delivery. Approximately 75% highlighted their technical proficiency and project management, while 50% appreciated their creativity and problem-solving abilities. Clients consistently noted a positive, responsive, and culturally aligned partnership with Zethic Technologies.
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$25,000+$25 - $49 / hr10 - 49Niš, Serbia
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See all 1 projectsMegatrend is an IT solutions provider specializing in developing integral informational systems using Microsoft technologies, such as .NET and ASP.NET Core. The feedback highlights their successful implementation of a unified database system and notable improvements in business processes, with positive reviews accounting for over 90% of the comments. Clients appreciate Megatrend's responsive communication and project management skills, with suggestions for future enhancements involving BI tools.
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$10,000+$25 - $49 / hr250 - 999Milpitas, CA
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See all 7 projectsTeksun Inc is a web development company specializing in back-end development and infrastructure management. They are praised for their effective communication, proactivity, and timely delivery, with 100% positive feedback regarding their project management and trustworthiness. Their contributions have significantly reduced client stress and enabled business growth.
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$5,000+$25 - $49 / hr10 - 49Pune, India
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See all 6 projectsMAQBIT specializes in Website Development, offering services including Web Design and Web Application Development. Across their reviews, they are praised for their effective project management and proactive approach, with 100% of reviewers highlighting timely delivery and responsiveness. Approximately 50% commend their detailed requirement gathering and wireframing process, emphasizing their ability to understand and meet customer needs.
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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 Development70% JavaScript50% Other -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% 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 -
$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
37.7/40.018.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.9/40.019.6/20 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
39.3/40.019.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% 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 -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% 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 -
$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 -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$1,000+< $25 / hr250 - 999Walpole, 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 -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development15% JavaScript70% 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 -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.9/40.017.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
38.2/40.018.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$1,000+< $25 / hr1,000 - 9,999Los Angeles, CA
Ability to deliver
36.9/40.019.6/20 Reviews9.3/10 Clients & Experience8/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.8/40.018.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.4/40.016.4/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
37.9/40.018.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.1/40.019.4/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other
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.