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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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsEvius Industri is a web development company specializing in custom website development and web design. Reviews highlight their proficiency in delivering high-quality web solutions, with 100% positive feedback emphasizing their agility, competence, and effective project management. Clients appreciate their ability to enhance UI/UX design and drive increased traffic and leads.
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$1,000+$50 - $99 / hr10 - 49
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See all 3 projects7Software is a web development company specializing in custom website development and web application development. The reviews highlight a high level of satisfaction, with 100% positive feedback focusing on their expertise in front-end and back-end development, project management, and technical support. Clients are particularly impressed with their ability to maintain database stability and provide comprehensive online development solutions.
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$5,000+$50 - $99 / hr10 - 49
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See all 2 projectsBoostTypers is a web development company specializing in website development and web design services. They delivered a responsive CMS website with an admin dashboard for P&A Złom, enhancing customer outreach and operational efficiency. With 100% positive feedback, clients particularly commend their effective communication and timely project completion.
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$1,000+$25 - $49 / hr2 - 9Denpasar, Indonesia
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See all 3 projectsThink GenC specializes in Website Development and Web Design, offering comprehensive services from front-end and back-end development to content creation and testing. Their reviews highlight their ability to create visually appealing, user-friendly online platforms, with clients appreciating their adherence to timelines and creative expertise, though some noted a need for more timely updates on challenges.
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$1,000+$25 - $49 / hr50 - 249Karachi, Pakistan
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See all 8 projectsA2Z Creatorz is a proficient web development company specializing in website development, web programming, and full-stack web development. Analyzing their reviews, 100% of clients praised their professionalism, timely delivery, and technical expertise, with 80% highlighting their responsive project management. Clients noted their ability to meet business needs, though some suggest minor improvements in QC processes and proactive suggestions.
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$1,000+$25 - $49 / hr10 - 49
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See all 5 projectsBlast Sourcing is a web development company specializing in Website Development and SEO services, offering modern and intuitive web designs. Reviews highlight their reasonable pricing, effective project management, and customer service, with 100% of reviewers praising their expertise and creativity. Both reviewers appreciated their SEO-optimized websites, enhancing user experience and increasing organic traffic.
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$1,000+$50 - $99 / hr10 - 49
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See all 4 projectsDEVWOLFZ LLC is a web development company specializing in custom website development and full-stack web development. The company received overwhelmingly positive feedback, with 90% of reviewers highlighting their professionalism, timely delivery, and expertise in enhancing user engagement and operational efficiency. Clients praised their proactive communication and ability to integrate advanced technologies, though some suggested improvements in initial requirement gathering and broader technology options.
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Undisclosed$25 - $49 / hr10 - 49Kharkiv, Ukraine
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See all 3 projectsiQueSoft is a web development company that excels in custom website development, full-stack web development, and web application development. The reviews indicate that 100% of clients appreciate their professionalism and ability to deliver on promises, with specific praise for their project management and problem-solving skills. However, 50% of reviewers noted a need for improved transparency within their development team.
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$1,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 1 projectsSimple2B is a web development company specializing in full-stack web development and mobile app development, with a strong emphasis on custom website development and web application development. Feedback indicates a 100% positive satisfaction rate, highlighting their effective project management, strong software engineering and design capabilities, and reasonable pricing. Reviewers commend their ability to meet project demands and provide excellent value for cost.
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$25,000+$100 - $149 / hr2 - 9Vancouver, WA
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See all 4 projectsCascadian Software is a full-stack web development company specializing in custom website development, web application development, and technical staff augmentation. With 100% positive feedback from clients, notable strengths include their adaptability, timely delivery, and high-quality project management. Clients appreciate their agile approach and effective communication, although some mention room for improvement in invoicing processes.
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Undisclosed$50 - $99 / hr50 - 249San Ġwann, Malta
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See all 2 projectsCleverbit Software is a web development company specializing in custom web application development. Their reviews highlight a 100% satisfaction rate, emphasizing their prompt service and adaptability to client requirements. Clients appreciate their professional project management and ongoing support, with seamless integration and accuracy in data handling being key strengths.
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$5,000+$50 - $99 / hr2 - 9Łódź, Poland
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See all 2 projectsDayOne s.c. is a comprehensive web development company specializing in front-end and back-end development, focusing on enhancing scalability and code quality for projects. Review feedback is predominantly positive, with commendations on their technical prowess, project management, and effective communication, although one review noted a need for improved transparency. Approximately 90% of reviewers highlighted benefits such as improved software functionality and reduced operational costs.
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$5,000+$50 - $99 / hr2 - 9Poznań, Poland
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See all 2 projectsReSymbio is a web development company specializing in custom website development and web application development. Their clients highlight a 100% satisfaction rate, praising their effective project management, adaptability, and strong communication skills. ReSymbio's solutions enabled real-time knowledge sharing and successful online events, proving their expertise in both front-end and back-end development.
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Undisclosed$25 - $49 / hr50 - 249Ahmedabad, India
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See all 2 projectsPerigeon Software Private Limited is a software development company specializing in building enterprise-level applications on SaaS and Azure platforms. The company has received positive feedback for its technical proficiency and dedication, with 100% of reviewers highlighting their team's passion and skills. However, 100% of reviewers also suggested improving their documentation process.
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$1,000+< $25 / hr2 - 9
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See all 2 projectsGVH Development is a full-fledged web development company specializing in custom website development, front-end and back-end development, and full-stack web development. They consistently receive positive feedback for their reliability, timely delivery, and exceptional communication skills, with 100% of the reviews highlighting their ability to exceed client expectations and deliver high-quality products.
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$1,000+$150 - $199 / hr2 - 9Jacksonville, FL
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See all 1 projectsFable Heart Media is a web development company that excels in custom website development and digital marketing strategy. Their reviews highlight their impressive breadth of knowledge, responsiveness, and ability to meet deadlines without sacrificing quality. Notably, their efforts have significantly increased client engagement and online purchases, with 100% positive feedback from reviewers.
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$5,000+$25 - $49 / hr10 - 49Chișinău, Moldova
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See all 1 projectsCherry Digital Agency is a web development company specializing in custom website development and web design. The agency receives overwhelmingly positive feedback, with clients praising their professionalism, creativity, and innovative approach. About 100% of reviewers commend the user-friendly and international appeal of the websites they create, highlighting their significant impact on business growth.
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Undisclosed$50 - $99 / hr50 - 249Raleigh, NC
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See all 1 projectsGehtsoft USA is a software development company lauded for its exceptional delivery of digital solutions. With 100% positive feedback, clients emphasize their innovative approach, seamless integration capabilities, and outstanding customer support. Their robust, scalable platforms and dedication to client success foster long-lasting partnerships and redefine exceptional service.
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$5,000+$50 - $99 / hr2 - 9Timișoara, Romania
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See all 3 projectsAlmaCore is a comprehensive web development company specializing in both front-end and back-end development, with a focus on custom website development and web programming. With 100% of reviewers highlighting their professionalism, proactive communication, and expertise, AlmaCore consistently delivers timely and strategic solutions, ensuring project alignment with client goals and fostering positive business outcomes.
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$1,000+$50 - $99 / hr50 - 249Bangkok, Thailand
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See all 2 projectsIglu is a versatile company offering software development and customer support services. Overall feedback is positive, with 100% of reviewers expressing satisfaction with their services. Clients praise Iglu's effective communication, cost-efficiency, and responsiveness, highlighting their successful project delivery and ability to meet client needs. No areas for improvement were noted by the reviewers.
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$5,000+$50 - $99 / hr10 - 49Pretoria, South Africa
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See all 2 projectsOctrotus Online Solutions is a web development company specializing in custom website development and web design. With a 100% positive feedback rate, clients praise their exceptional project management, timely delivery, and dedication to client satisfaction. Their expertise in reducing administrative workload and enhancing communication through seamless web solutions is frequently highlighted.
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$5,000+$25 - $49 / hr10 - 49Bengaluru, India
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See all 15 projectsZignite Labs offers comprehensive services in Web Development and Online Development, including Web Design and Web Programming. The reviews highlight their ability to deliver high-quality UI/UX and integration, with strong communication and commitment to client needs. Customers appreciate their dedication, though some suggest refining the process for final deliverable reviews.
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$5,000+$100 - $149 / hr10 - 49Glendale, CA
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See all 2 projectsNamango Web Development is a web development company specializing in custom website development, web design, and web application development. Reviews indicate a high level of client satisfaction, with 100% of respondents praising their professionalism, reliability, and ability to understand and meet project needs. Clients highlight the company's effective communication and adherence to timelines, contributing to successful project outcomes.
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$1,000+$25 - $49 / hr2 - 9Łódź, Poland
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See all 3 projectsWP Doin, a Web Development company specializing in WordPress solutions, receives consistently positive feedback, with all clients highlighting their professionalism and adherence to deadlines. Approximately 100% of reviews emphasize the quality of their code and project management. Clients appreciate their reliability and attention to detail, resulting in high satisfaction and successful project outcomes.
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$5,000+$50 - $99 / hr2 - 9
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See all 1 projectsArsum is a software development company that specializes in technical product leadership and strategy, particularly for early-stage tech companies. Reviews highlight their ability to integrate as part of the client's team, delivering rapid project management and adaptable tech solutions. Over 80% of reviewers commend Arsum's capacity to pivot effectively and meet evolving technology needs.
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$1,000+< $25 / hr2 - 9Luhans'k, Ukraine
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See all 1 projectsWonderkid Studio is a web development company specializing in building custom websites and web applications. Their reviews highlight effective project management, with 100% of feedback noting their competence and ability to resolve issues promptly. Clients appreciate their programming expertise and collaborative approach, though some mention a need for improved response speed.
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$10,000+$50 - $99 / hr10 - 49
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See all 11 projectsLean Start Lab is a web development company specializing in UX/UI design to enhance web platforms. The company received unanimously positive feedback, with 100% of reviewers praising their ability to deliver projects on budget and on schedule. Reviewers also commended the high quality of work and effective project management.
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$1,000+$50 - $99 / hr2 - 9Spott, Scotland
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See all 1 projectsVerdant Spark Ltd is a web development company specializing in custom website development with a focus on Shopify platforms. The company received 100% positive feedback, with clients praising their excellent communication, value for money, and ability to create user-friendly websites that enhance sales and traffic. They are noted for their technical skills and ongoing support.
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$5,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 4 projectsnullBrainer is a web development company specializing in custom website development and web application development. With 100% positive feedback, reviewers commend their work ethic, flexibility, and emphasis on client success. Clients appreciate their ability to meet or exceed specifications and their commitment to building a partnership beyond mere profit.
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$1,000+$25 - $49 / hr10 - 49Randburg, South Africa
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See all 2 projectsNetgen Custom Software is a company specializing in database redesign and mobile application development. Reviews highlight their responsiveness, attention to detail, and effective communication, with 100% of reviewers noting impressive feedback handling and workflow. Clients appreciate their capacity for modernization and user-friendly solutions, with no areas for improvement mentioned.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 2 projectsStratecore Infoways is a proficient app development company known for delivering innovative software solutions across diverse sectors. The reviews reflect a high level of satisfaction, with 100% of clients praising their flexibility, top-tier development work, and effective project management. Their ability to integrate with client teams and provide valuable tools has been particularly highlighted.
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UndisclosedUndisclosed50 - 249Kharkiv, Ukraine
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See all 1 projectsYael Acceptic is a software development company specializing in providing R&D engineers, developers, and testers to augment teams in areas like AI and algorithms. The firm's reviews are overwhelmingly positive, with 100% of reviewers highlighting their exceptional project management and ability to hire top-tier talent, leading to long-term successful product outcomes.
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$1,000+< $25 / hr10 - 49
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See all 15 projectsBoffin Coders PVT. LTD is a web development company renowned for its excellent value for cost and diverse expertise in Website Development, Web Design, and SEO. The company consistently receives praise for its efficiency, reliability, and strong communication, with over 90% of reviews highlighting these qualities. The team's ability to deliver projects on time and meet client expectations is frequently commended.
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$5,000+$25 - $49 / hr10 - 49
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See all 3 projectsFH Solutions is a web development company specializing in comprehensive web and mobile application development, including front-end and back-end solutions. Across their reviews, 100% of clients highlight their timely delivery, proactive project management, and high-quality outcomes. Clients appreciate their consistent communication, responsiveness, and ability to adapt to project needs effectively.
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$5,000+$25 - $49 / hr10 - 49Kochi, India
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See all 1 projectsTechware Lab is a web development company specializing in website development and design, with expertise in custom website and web application development. They have received overwhelmingly positive feedback, with clients highlighting their strong design capabilities and responsive project management. Approximately 90% of reviewers commend their design team's proficiency and prompt response times.
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$1,000+< $25 / hr10 - 49
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See all 5 projectsPeregrine InfoWorld specializes in Website Development and Web Programming, offering services that include Full Stack Development with expertise in Node.js and React.js. Reviews highlight their excellent project management, timely delivery, and strong technical skills that improved website performance metrics. Their commitment to clear communication and innovative solutions is consistently praised across client feedback, making them a reliable partner for web development projects.
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$1,000+$25 - $49 / hr10 - 49Zhytomyr, Ukraine
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See all 7 projectsSEOTM Digital Agency is a versatile web development company specializing in full-stack web development and online development solutions. Reviews indicate a 100% positive feedback rate, with clients praising their proactive project management, responsiveness, and strategic approach to web application development. Approximately 75% of reviewers highlight their expertise in custom website development and front-end development, emphasizing their innovative solutions and client-focused service.
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$25,000+$25 - $49 / hr10 - 49
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See all 4 projectsDextechnology is a mobile app development company with expertise in both native and cross-platform applications for iOS and Android. They have a reputation for professionalism, delivering complex projects on time and within budget, as evidenced by positive feedback across various reviews. Approximately 100% of reviewers highlight their technical proficiency and problem-solving abilities, while 75% commend their effective communication and project management.
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$1,000+$25 - $49 / hr2 - 9New Delhi, India
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See all 5 projectseClick nTech is a web development company renowned for its expertise in Website Development and Web Design. It consistently receives positive feedback, with 100% of reviewers praising its reliability, responsiveness, and detailed approach to web design. Clients commend the company for delivering projects on time and providing impressive communication, with all reviews reflecting satisfaction.
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$10,000+$25 - $49 / hr10 - 49Plovdiv, Bulgaria
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See all 2 projectsEVLabs is a web and app development company that specializes in creating MVPs for platforms. Feedback for EVLabs is overwhelmingly positive, with 100% of reviewers highlighting their rapid delivery and enhanced functionality. Clients praise their collaborative approach, transparency, and ability to under-promise and over-deliver, resulting in satisfaction with the final product.
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$5,000+$100 - $149 / hr10 - 49
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See all 3 projectsUhray is a web development company specializing in custom website development and full-stack web development. Their reviews highlight a consultative approach, emphasizing collaboration and understanding client goals, with positive remarks about their project management and innovative thinking. Approximately 80% of the feedback is positive, although there are suggestions for improved invoice clarity.
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$1,000+< $25 / hr50 - 249Mumbai, India
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See all 2 projectsInfidigit is an SEO agency renowned for enhancing online presence through expert SEO strategies and digital marketing solutions. Reviews highlight their exceptional project management skills, proactive communication, and technical expertise, with 100% positive feedback from clients. Their ability to deliver results swiftly and exceed expectations makes them a trusted partner for companies aiming to boost their SEO performance and online visibility.
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$5,000+$200 - $300 / hr10 - 49Parsippany-Troy Hills, NJ
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See all 8 projectsToday's Business is a digital agency specializing in Website Development and search engine optimization. They received overwhelmingly positive feedback, with 100% of reviewers praising their timely delivery and unique approach. Clients appreciate their cultural alignment and professionalism, highlighting them as an exemplary partner in achieving online development goals.
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$1,000+$25 - $49 / hr10 - 49Dhaka, Bangladesh
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See all 6 projectsZORG IT GROUP specializes in Website Development and Web Design, offering comprehensive services including e-commerce site creation, secure payment integration, and mobile responsiveness. Client reviews consistently highlight the company's professionalism, timely delivery, and effective project management, making ZORG IT GROUP a reliable choice for web programming and online development projects.
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$5,000+$50 - $99 / hr2 - 9
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See all 16 projectsDigiAlps LTD is a proficient web development company excelling in custom website development, web application development, and web design. The firm garners positive feedback, with 100% of reviewers highlighting their professionalism, punctuality, and effective communication. Their ability to deliver unique, customized web solutions promptly stands out, making them a preferred choice for clients seeking tailored web development services.
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$25,000+$50 - $99 / hr10 - 49Sofia, Bulgaria
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See all 4 projectsNo Limit Software is a web development company specializing in full-stack and custom website development. With a 100% satisfaction rate from clients, they are praised for their consultative approach, flexibility, and adherence to timelines. Their team is recognized for professionalism, responsiveness, and offering valuable insights, making them a reliable partner for ongoing online development projects.
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$5,000+$25 - $49 / hr10 - 49Kalisz, Poland
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See all 4 projectsTebim - Prestashop software house is an e-commerce development company specializing in modern website design and functionality enhancements. Feedback from reviews highlights their professional approach, responsive communication, and competitive pricing, with 100% satisfaction expressed by clients regarding project deliverables and management. Their ability to increase sales and site traffic is notably appreciated.
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$1,000+$25 - $49 / hr2 - 9
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See all 2 projectsTAYA Agency is a digital marketing firm specializing in social media management, SEO, and email marketing. Feedback highlights their excellent service, with a 100% positive sentiment and emphasis on commitment and work ethics. Clients appreciate their role as a dedicated marketing partner, enhancing brand presence and achieving measurable outcomes.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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See all 5 projectsShopify Ecommerce Website Development Company, operated by Jupiter Technoway, is a renowned web development company known for its exceptional web design, custom website development, and full-stack web development services. With 100% positive feedback, clients commend their creativity, professionalism, and timely delivery. Approximately 67% of reviews highlight their impressive design and user-friendly web solutions.
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$25,000+$150 - $199 / hr10 - 49San Jose, CA
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See all 4 projectsE8 Labs is a web development company specializing in custom website and web application development. Their reviews highlight strong project management and responsiveness, with 100% of clients noting professionalism and effective communication. Clients appreciate their intuitive designs and reliable follow-through, although some mention the need for improved deadline realism. Overall, E8 Labs is recommended for their professional approach and dedication to client vision.
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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.