Top JavaScript Developers
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 89 projectsDigis, a Fiverr company (NYSE: FVRR), specializes in Web Development, providing comprehensive services such as Front-End Development, Back-End Development, and Custom Website Development. Their reviews indicate a 100% satisfaction rate, highlighting their strong project management, technical expertise, and clear communication. Approximately 70% of reviewers emphasize their seamless integration into teams and high-quality deliverables.
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$5,000+$25 - $49 / hr50 - 249Noida, India
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See all 21 projectsiWebServices is a web development company specializing in website and mobile application development. They have received overwhelmingly positive feedback, with 100% of reviewers praising their professionalism, responsiveness, and project management abilities. Clients appreciate their ability to meet deadlines and deliver high-quality, user-friendly digital solutions. Many reviewers (around 50%) highlighted the company's ability to blend innovation with functionality, enhancing user experience through custom solutions.
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$25,000+$150 - $199 / hr10 - 49Atlanta, GA
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See all 25 projectsTyrannosaurus Tech is a comprehensive web development company offering custom website development, full-stack development, and web application development. According to all available reviews, clients overwhelmingly praise their proactive and responsive communication, with 100% noting their professionalism and technical skill. Approximately 90% highlight their ability to seamlessly integrate into teams, ensuring project efficiency and high-quality results.
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$25,000+$50 - $99 / hr10 - 49Poznań, Poland
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See all 8 projectsCuriosum is a software development company specializing in Elixir/Phoenix and React technologies, providing services like web and mobile app development, code auditing, and performance optimization. With a strong emphasis on quality, agile project management, and collaboration, Curiosum has received overwhelmingly positive feedback from clients, highlighting their expertise, effective communication, and commitment to exceeding expectations. Approximately 90% of reviewers praised their technical proficiency and project execution.
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$10,000+$25 - $49 / hr10 - 49Beograd, Serbia
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See all 7 projectsINSSIO is a web development company specializing in web and application development services, offering robust, secure, and scalable solutions. Feedback indicates a strong emphasis on technical expertise and superior communication, with 100% of reviewers highlighting customer satisfaction and effective project management. Their approach integrates complex components seamlessly, aligning with client strategic goals for comprehensive support.
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$5,000+< $25 / hr250 - 999Hanoi, Vietnam
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See all 9 projectsLTS Group is a development and quality assurance company known for offering services like software development, QA support, and CRM solutions. Their reviews highlight a consistent record of timely project deliveries and proactive communication, with approximately 85% of reviewers praising their professionalism and responsiveness. However, potential communication improvements were noted by a small percentage of clients.
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$10,000+$25 - $49 / hr10 - 49Daugavpils, Latvia
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See all 5 projectsKodansoft is a web development company specializing in creating user-friendly, responsive websites and web applications. They consistently receive positive feedback, with clients praising their clear communication, quick responsiveness, and on-time delivery. About 100% of reviews highlight their great culture fit and value for cost, while 80% commend their effective search engine optimization strategies.
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$25,000+$50 - $99 / hr10 - 49Newcastle upon Tyne, England
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See all 4 projectsReadysalted is a web development company specializing in Custom Website Development and Web Design. They consistently receive positive feedback, with 100% of reviewers highlighting their professionalism, communication, and creativity. Clients commend their ability to deliver accessible, sleek websites with improved functionality and personalized service, often mentioning their strong project management and adherence to timelines.
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$5,000+$100 - $149 / hr2 - 9Arlington, VA
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See all 5 projectsBuildLab is a web development company specializing in integration, automation, and optimization solutions. The reviews highlight a strong reputation for effective communication and project management, with 100% of feedback being positive. Clients particularly appreciate BuildLab's ability to simplify complex workflows and provide innovative solutions, while also valuing their transparent approach and responsiveness.
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$1,000+$50 - $99 / hr10 - 49Ho Chi Minh, Vietnam
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See all 1 projectsOne Pixel Media is a web development company specializing in custom website development and web design, with a strong focus on e-commerce functionality. Their projects consistently receive positive feedback, with clients praising their rapid delivery, professional approach, and user-friendly designs. Notably, 100% of reviewers highlighted impressive project outcomes and a 50% increase in revenue post-launch.
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$50,000+$50 - $99 / hr250 - 999Kaunas, Lithuania
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See all 2 projectsNFQ Technologies is a versatile software development company specializing in custom web development and ERP system solutions. Across their reviews, they are praised for their professional service, timely delivery, and ability to grasp client requirements effectively, with no significant areas for improvement noted. Clients appreciate their proactive approach and personal attention, leading to positive feedback and successful long-term collaborations.
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$25,000+$50 - $99 / hr10 - 49HaOgen, Israel
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See all 16 projectsmoblers is a Web Development company specializing in mobile app and website development. Reviews highlight their dedication, timely delivery, and transparent communication, with 100% positive feedback emphasizing professionalism and project management excellence. Clients appreciate their alignment of values and budget-friendly pricing, with 100% noting successful outcomes in both Web and Mobile App Development projects.
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$1,000+$25 - $49 / hr10 - 49Johannesburg, South Africa
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See all 24 projectsMelsoft is a versatile web development company specializing in services such as website development, web design, and custom software solutions. Across 100% of reviews, clients commend Melsoft for their efficiency, professionalism, and ability to deliver projects ahead of schedule. Their expertise in full-stack web development and dedication to excellent customer service are frequently highlighted as key strengths.
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$50,000+$150 - $199 / hr10 - 49San Francisco, CA
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See all 8 projectsDayspring Partners is a comprehensive web development company specializing in custom website development, web application development, and full-stack web development. Their reviews reflect a 100% positive feedback rate, highlighting their exceptional project management, responsiveness, and dedication to client success. Notably, 67% of reviewers commend their ability to integrate complex systems such as Salesforce and create highly interactive and user-friendly web solutions.
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$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 6 projectsWindzoon Techno Private Limited is a web development company specializing in website development and design, as well as online development services. Their reviews indicate a strong emphasis on professionalism, customer focus, and timely project delivery, with 100% positive feedback highlighting their technical acumen and ability to tailor solutions to clients' needs. A notable 67% mention their project management expertise and responsiveness.
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$5,000+$50 - $99 / hr2 - 9Tambon Chalong, Thailand
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See all 13 projectsDiv Block Studio is a web development company that specializes in custom website development, web design, and web application development. Across numerous positive reviews, clients commend Div Block Studio for their timely delivery, excellent communication, and alignment with client goals. Approximately 100% of the reviews highlight their on-time delivery and professionalism, with multiple clients noting their proficiency in Webflow and commitment to exceeding expectations.
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$1,000+$50 - $99 / hr10 - 49Marienheide, Germany
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See all 6 projects6 Weeks Marketing is a website development company that excels in creating custom, functional, and responsive web solutions. With a 100% positive feedback rate, clients praise their high-level communication, project management, and technical expertise. Approximately 67% of reviewers highlight their ability to combine design with functionality, making them a top choice for businesses seeking comprehensive web development services.
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$50,000+$50 - $99 / hr10 - 49Ljubljana, Slovenia
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See all 20 projectsKaldi is a full-stack web development company known for its expertise in website development, web app development, and backend development. The reviews highlight their proficiency in delivering complex projects on time, with 100% of clients praising their project management and responsiveness. Approximately 80% of clients commend Kaldi's ability to understand and address specific business needs, ensuring successful outcomes.
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$5,000+< $25 / hr10 - 49Gilgit, Pakistan
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See all 20 projectsPine Technologies is a versatile web development company specializing in Web and Mobile Development, Custom Software Development, and IT Staff Augmentation. The company consistently receives positive feedback with approximately 100% of clients highlighting their professionalism, efficiency, and excellent project management. Clients frequently commend Pine Technologies' ability to deliver projects on time and their adeptness in handling diverse technology stacks.
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$50,000+$150 - $199 / hr10 - 49Alpharetta, GA
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See all 16 projectsMonogram is a web development company specializing in custom website development, web application development, and full-stack web development. Across their reviews, 100% of clients commend their impressive project management, smooth communication, and ability to meet or exceed deadlines. Approximately 60% highlight their dedication to understanding client goals and translating them into high-quality, user-friendly designs. Monogram's responsive and customer-first approach is consistently praised, with no significant areas for improvement noted.
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$5,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 9 projectsA2 Design Inc. is a full-stack web development company specializing in custom website and web application development. The company consistently receives high praise for its efficiency, communication, and technical expertise, as evidenced by 100% positive feedback in reviews. Approximately 80% of reviewers highlighted their excellent project management skills, while many noted their competitive pricing and ability to deliver projects on time and within budget.
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$5,000+$100 - $149 / hr10 - 49Dublin, Ireland
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See all 17 projectsVevol Media - Shopify Developers is a web development company specializing in the creation and customization of Shopify websites, offering services like website development, web design, and custom website development. With 100% positive feedback, clients consistently commend their technical expertise, reliability, and excellent communication skills, highlighting their ability to deliver projects on time and within budget while providing a collaborative and supportive experience.
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$5,000+$100 - $149 / hr2 - 9
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See all 12 projectsBrendly is a web development and design company recognized for its expertise in creating custom websites and ensuring excellent user experiences. They have consistently delivered projects on time, with 90% of reviews highlighting their impressive project management and communication. Clients appreciate their proactive approach, with 70% praising their ability to efficiently address technical challenges and implement client feedback swiftly.
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$5,000+$25 - $49 / hr10 - 49
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See all 3 projectsLunax is a web development company specializing in custom website development and web design, with notable expertise in blockchain technology. The company receives predominantly positive feedback for its project management skills, responsiveness, and ability to deliver complex, tailored solutions. Approximately 90% of reviews highlight their technical proficiency and commitment to meeting client needs.
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$5,000+$25 - $49 / hr2 - 9
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See all 3 projectsGOLEMS G.A.B.B. OÜ is a web development company specializing in Drupal-based solutions, including website upgrades, custom functionalities, and improved user experience. Their professionalism and efficiency are highlighted in 100% of reviews, with clients appreciating their flexibility and strong project management. Overall, GOLEMS G.A.B.B. OÜ provides adaptive and high-quality web development services with a focus on client satisfaction and ongoing support.
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$5,000+< $25 / hr50 - 249Iselin, NJ
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See all 7 projectsBizmia LLC is a web development company highly praised for its technical expertise in web programming and its exceptional project management capabilities. With 100% positive feedback, clients commend their efficient processes and ability to execute tasks swiftly, making them a reliable partner for custom website development and web application development. Notably, they combine technical excellence with emotional intelligence, ensuring seamless collaboration.
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$25,000+$50 - $99 / hr250 - 999Wrocław, Poland
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See all 10 projectsQulix is a versatile web development company offering services such as full-stack web development, web application development, and front-end and back-end development. With 100% positive feedback, clients appreciate their technical expertise, flexibility, and cost-effective solutions, highlighting their ability to manage complex projects and maintain strong communication throughout, often through platforms like JIRA and Slack.
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$10,000+$100 - $149 / hr10 - 49Wien, Austria
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See all 6 projectsFunctn is a web development company specializing in custom website development and web application development, with a strong emphasis on web design and UX/UI improvements. Overall, Functn receives highly positive feedback, with approximately 95% of reviewers praising their project management and customer-focused approach, highlighting their creativity and dedication to understanding client needs.
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$25,000+$150 - $199 / hr10 - 49Oakland, CA
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See all 18 projectsKalamuna is a web development company specializing in website design, development, and maintenance, with a strong emphasis on mission-driven and nonprofit organizations. Their reviews highlight their creativity, responsiveness, and exceptional project management skills. Approximately 90% of reviewers commend their ability to handle complex projects and deliver high-quality, accessible websites. Further, their collaboration and alignment with client values are frequently noted as key strengths.
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$10,000+< $25 / hr10 - 49New Delhi, India
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See all 5 projectsAphelia Innovations is a full-stack web development company known for its robust application design and development services. Their clients commend them for timely delivery, professionalism, and exceptional project management, with 100% of reviews highlighting their commitment to quality and seamless collaboration.
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$25,000+$50 - $99 / hr50 - 249Zagreb, Croatia
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See all 19 projectsArs Futura is a full-service web and mobile development company renowned for delivering robust and scalable solutions through custom website development, web application development, and mobile app development. With 100% positive feedback, clients praise their project management, timely delivery, and ability to exceed expectations, as they consistently demonstrate expertise in both front-end and back-end development, fostering a collaborative partnership.
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$50,000+Undisclosed50 - 249Buenos Aires, Argentina
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See all 5 projectsUnited Virtualities is a full-stack web development company highly regarded for its comprehensive online development solutions, especially in web application and custom website development. Reviews indicate a 100% positive feedback rate, emphasizing their exceptional project management, ability to function as an integrated partner, and expertise in developing complex platforms under budget constraints. Clients appreciate their proactive problem-solving and flexibility, fostering long-term partnerships.
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$25,000+$25 - $49 / hr10 - 49Tirana, Albania
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See all 22 projectsAtraX is a web development company specializing in custom website development and full-stack web development, offering services such as web application development and front-end and back-end solutions. Reviews highlight their effective project management, timely delivery, and clear communication, with 100% of reviewers noting their professional approach and responsiveness to client needs. AtraX consistently delivers projects on time and within budget, making them a reliable partner for complex tech projects.
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$25,000+$50 - $99 / hr50 - 249Poznań, Poland
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See all 9 projectsMacopedia is a web development company with expertise in full-stack web development, custom website development, and web application development. They consistently receive high praise from clients, with notable strengths in agile project management and delivering complex projects within tight timelines. Clients appreciate their proactive approach and technical acumen, with nearly 100% of reviews highlighting successful project outcomes and effective collaboration.
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$5,000+$25 - $49 / hr50 - 249
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See all 5 projectsCITROK is a web development company skilled in Web Design, Front-End Development, and Web Application Development. Reviewers consistently highlight their commitment to timely delivery, excellent communication, and attention to detail, with 100% expressing satisfaction. Their pricing and technical expertise are frequently mentioned, making them a valuable partner for custom website development projects.
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$5,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 6 projectsUkrosoft is a web development company specializing in WordPress solutions and custom web development. Across their reviews, 100% of clients praised their project management skills, communication, and flexibility, with highlights on their ability to handle tight timelines and enhance e-commerce functionality. Clients consistently noted Ukrosoft's professionalism and commitment to delivering on project specifications efficiently.
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$10,000+< $25 / hr250 - 999
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See all 50 projectsPerfect Systems is a web development company specializing in custom website development and web application development. The reviews highlight their strong project management skills, attention to detail, and ability to deliver tailored solutions. Over 90% of the feedback is positive, with clients appreciating their ability to translate complex requirements into effective digital solutions, suggesting 70% of reviewers noted their proactive approach and expertise in web design.
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$10,000+$25 - $49 / hr10 - 49
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See all 8 projectsPerspecta Ltd is a distinguished web development company excelling in custom website development, full-stack web development, and web application development. The firm is consistently praised for its strategic partnership approach, delivering projects on time with seamless integration and communication. Impressively, 100% of reviews highlight their technical expertise and innovative solutions, with notable outcomes such as a 40% increase in online sales and a 60% reduction in page load times.
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$5,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
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See all 19 projectsFgfactory is a mobile game development company that has demonstrated its capabilities in full-cycle game development, including backend, frontend, and design UX/UI services. Reviews indicate a mixed performance, with 50% reporting significant communication and project management issues, while the other half praise their project management skills and ability to significantly increase user engagement on websites.
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$10,000+$50 - $99 / hr50 - 249Kyiv, Ukraine
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See all 5 projectsAccellabs is a versatile software development company offering comprehensive services in areas like SaaS software, IoT systems, and custom application development. Reviews indicate a strong emphasis on quality and efficiency, with approximately 100% of clients praising their technical expertise and reliability. The company is noted for its strategic insights and strong project management, maintaining long-term partnerships due to high client satisfaction.
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$10,000+$50 - $99 / hr10 - 49Beograd, Serbia
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See all 9 projectsMakalu is a distinguished web development company, renowned for its expertise in custom website development and full-stack web development. Across various reviews, 100% of clients commend their project management and communication skills, with 95% highlighting their exceptional attention to detail and ability to deliver on time. The company consistently receives praise for their technical prowess in web programming and their responsiveness to client needs.
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$5,000+$25 - $49 / hr50 - 249Indore, India
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See all 16 projectsTechInfini Solutions Pvt. Ltd. is a web development company specializing in custom website development, web programming, and API integration. The company has consistently received positive feedback, with over 90% of reviews highlighting their quick response times, technical expertise, and ability to deliver complex projects on time. Clients frequently commend their professionalism and comprehensive project management approach.
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$10,000+$50 - $99 / hr50 - 249Kraków, Poland
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See all 17 projectsApplandeo is a custom website development and web application development company that excels in delivering full-stack web development services. Feedback from clients indicates a 100% positive reception, highlighting their impressive project management, proactive communication, and ability to align with client needs efficiently. Notable strengths include flexibility, transparency, and a deep understanding of customer requirements.
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$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
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See all 9 projectsQodeca is a web development company renowned for its comprehensive services in custom website development, full-stack web development, and web application development. With a 100% positive feedback rate, clients consistently commend Qodeca for their professionalism, commitment to client success, and ability to deliver projects on time and within budget. Notably, 100% of reviewers highlight their technical expertise and effective project management.
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$5,000+$50 - $99 / hr50 - 249Depok, Indonesia
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See all 4 projectsBadr Interactive is a web development company specializing in Custom Website Development and Web Design services. Overall, the feedback highlights their effective communication and quick response to system errors, although minor bugs were noted at launch. The majority of feedback is positive, with clients appreciating their ability to integrate new features seamlessly.
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$5,000+$25 - $49 / hr10 - 49Tallinn, Estonia
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See all 10 projectsEXTELA is a web development company specializing in Website Development, Web Design, and Full-Stack Web Development. Reviews consistently praise their punctuality and problem-solving skills, with 100% of reviewers noting timely delivery and satisfaction with results. While clients commend their technical expertise and ongoing support, some suggest improvements in quality assurance and communication practices.
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$25,000+$25 - $49 / hr10 - 49Yerevan, Armenia
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See all 13 projectsA2SEVEN is a web development company specializing in front-end and full-stack web development. Reviews highlight their exceptional project management, speed, and accuracy in understanding and implementing requirements. The company receives overwhelmingly positive feedback, with 100% of reviewers noting their effective communication and flexibility in adapting to changing project needs.
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$1,000+< $25 / hr10 - 49Sahibzada Ajit Singh Nagar, India
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See all 42 projectsWillShall Consulting is a web development company specializing in website design, SEO, and comprehensive online development services including Shopify and WordPress platforms. With a 100% positive feedback rate, clients appreciate their exceptional communication, timely deliveries, and innovative solutions. Notably, 100% of reviewers highlighted their ability to deliver projects on schedule and with high quality, emphasizing their strong project management and customer service skills.
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$10,000+$50 - $99 / hr10 - 49Montevideo, Uruguay
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See all 12 projectsHoulak is a web development company specializing in web and mobile development services, with a strong emphasis on UI/UX design, web application development, and full-stack development. They consistently receive positive feedback, with over 90% of reviewers highlighting their professionalism, responsiveness, and ability to adhere to deadlines, while many also praise their expertise and transparency in project management.
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$10,000+$25 - $49 / hr50 - 249
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See all 13 projectsDevsX is a full-stack web development company excelling in custom website development, web application development, and comprehensive online solutions. Reviews reveal a 100% positive feedback rate, highlighting their excellent project management, commitment to quality, and ability to meet deadlines. Approximately 80% of reviewers praised their responsiveness and alignment with client values, ensuring seamless project execution and high client satisfaction.
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$10,000+< $25 / hr50 - 249Ciudad de México, Mexico
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See all 4 projectsRocket Code, a technology development company, specializes in creating customized software platforms, employing state-of-the-art technologies for fintech solutions. Reviews highlight their exceptional project management and a client-centric approach, with a 95% satisfaction rate among clients appreciating their cybersecurity expertise and agile methodologies. Notably, 85% of reviewers commend their ability to translate complex ideas into user-friendly solutions, ensuring projects meet both technical and market needs efficiently.
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List of the Top 15 JavaScript Development Companies
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$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
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% 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 -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.5/40.019.2/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, 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+$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 -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
39.5/40.019.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.6/40.019.6/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.6/40.016.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% 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 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.3/40.016.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.7/40.019.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37/40.018/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.3/40.018.4/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$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 / 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
37.5/40.018.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.5/40.016.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
37.8/40.018/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$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 -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.5/40.015.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$5,000+$50 - $99 / hr50 - 249Maribor, Slovenia
Ability to deliver
36.1/40.020/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
40% Web Development100% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
37.6/40.017.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$25,000+$50 - $99 / hr50 - 249Poznań, Poland
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
50% Web Development10% JavaScript50% 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.