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 89 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development firm specializing in full-stack and custom website development. Reviews consistently highlight their exceptional project management, technical expertise, and strong communication skills. Approximately 90% of reviewers commend their proactive and reliable service, resulting in improved project delivery times and increased user satisfaction across various web applications.
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$1,000+$25 - $49 / hr50 - 249Nanakaramguda, India
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See all 4 projectsiGenero Web Solution Private Limited is a web development company specializing in custom website development and front-end development. They are praised for their technical expertise and understanding of user experience, with 100% of reviewers noting their ability to enhance project visibility and functionality. Some suggest potential for more innovative designs, yet their commitment to client-centric solutions is consistently highlighted.
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$5,000+$150 - $199 / hr2 - 9
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See all 2 projectsSpacey Studios is a design agency specializing in brand development for new businesses. Noteworthy for their commitment and collaboration, they have received overwhelmingly positive feedback, with 100% of reviewers appreciating their prompt communication and seamless design process. Clients particularly value their ability to translate client vision into comprehensive brand packages.
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$10,000+$50 - $99 / hr50 - 249
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See all 2 projectsSchnell Solutions Limited is a web development company specializing in custom website development and web application development. With a focus on bringing clients' ideas to life, they have consistently received positive feedback for their efficient project management and exceptional attention to detail. 100% of reviewers highlight their professionalism and ability to turn concepts into functional digital platforms, leading to high client retention rates.
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$1,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 2 projectsElegant Designs - Mobile App & Web Developers is a company specializing in mobile app and e-commerce website development. Across their reviews, clients expressed high satisfaction, citing smooth workflows, timely completion of projects, and effective communication. Positive feedback is prevalent, with 100% of reviewers highlighting project management effectiveness and responsiveness as key strengths.
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$1,000+< $25 / hr10 - 49Surat, India
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See all 1 projectsRising Star Infotech is a web development company specializing in website development and web application development. With strong client satisfaction, 100% of reviews highlight their technical expertise and timely delivery. Clients report a 45% increase in web traffic post-collaboration, showcasing their proficiency in enhancing user interface and performance.
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$50,000+$50 - $99 / hr2 - 9
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See all 1 projectsOpenKit is a web development company specializing in web application development and custom website development. They are highly commended for their responsiveness, understanding of web design, and effective community engagement, with 100% of reviews highlighting these attributes. Their projects demonstrate significant user engagement and adherence to accessibility standards, with no noted areas for improvement.
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$1,000+$50 - $99 / hr10 - 49Fort Lauderdale, FL
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See all 5 projectsRewardLion is a web development company known for its expertise in custom website development and web design. The reviews indicate a high level of satisfaction, with clients appreciating their diligent project management and communication. Notably, 100% of reviewers expressed contentment with the results, highlighting the company's ability to enhance clients' understanding of their services through effective website solutions.
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$5,000+$25 - $49 / hr10 - 49Bellevue, WA
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See all 3 projectsScalex Technology Solutions is a technology and software development company specializing in software solutions, infrastructure design, and mobile app development. Their reviews reflect a 100% positive feedback rate, highlighting their impressive communication, technical expertise, and dedication to clients' success. Reviewers consistently commend their ability to meet deadlines and provide high-quality, independent work with effective project management.
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$1,000+$25 - $49 / hr10 - 49Moncton, Canada
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See all 2 projectsQubit3 Technologies specializes in Website Development and Web Programming, offering customized solutions such as API parsing and WordPress function development. Feedback highlights their effective communication, timely delivery, and strong understanding of client requirements, making them a reliable choice for web development projects.
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$1,000+$25 - $49 / hr2 - 9Kyiv, Ukraine
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See all 1 projectsBlackSeed is a web development company specializing in comprehensive transport brokerage platforms, including web and mobile solutions. Reviews indicate a 100% satisfaction rate, highlighting their responsiveness and effective project management. Clients appreciate their detailed approach and round-the-clock support, with 80% mentioning impressive communication and responsiveness. BlackSeed continuously enhances its processes to maintain high-quality standards.
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$5,000+$25 - $49 / hr2 - 9Opole, Poland
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See all 4 projectsDEPCORE is a web development company specializing in custom website development, web application development, and web design. The reviews reflect 100% positive feedback, highlighting their ability to deliver projects on time, their excellent communication, and their integration of modern design elements. Reviewers frequently praise DEPCORE's responsiveness and cultural alignment, with 75% noting the company's impressive project management and collaboration skills.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 7 projectsENVITICS SOLUTIONS is a web development company specializing in custom website development, full-stack web development, and web application development. Their reviews indicate a strong emphasis on professionalism, timely project delivery, and effective communication, with 100% positive feedback on project management and responsiveness. Clients appreciate their adaptability, high-quality deliverables, and value for cost.
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$1,000+$25 - $49 / hr10 - 49
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See all 2 projectsTechyTrion Softwares is a web development company specializing in web design, custom website development, and resolving technical issues efficiently. Reviews highlight their professionalism and ability to redesign websites, with 100% of feedback being positive and praising their effective communication and timely delivery.
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$10,000+$25 - $49 / hr10 - 49Stockholm, Sweden
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See all 4 projectsDevelopers Shore is a web development company specializing in Web Programming and Full-Stack Web Development. The overall feedback is overwhelmingly positive, with clients appreciating their expertise and project management skills. Approximately 75% of users found the app developed by Developers Shore to be valuable, and their design work was particularly praised.
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$5,000+$25 - $49 / hr10 - 49Moreno, Argentina
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See all 2 projectsLubee is a web development company specializing in custom website development and full-stack web development solutions. Their work has been praised for improving process efficiency by reducing timelines from one week to 2–3 days. Reviewers consistently commend their project management skills, with 100% positive feedback, highlighting their ability to adjust to client budgets and requirements successfully.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsFM Enterprises Online Services is an eCommerce and web development company that specializes in creating custom retail systems and websites. The company has received highly positive feedback, with 100% of reviewers noting their professionalism, responsiveness, and effective communication. The integration of a custom POS solution and seamless project delivery were particularly commended by clients.
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$5,000+$25 - $49 / hr10 - 49Warszawa, Poland
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See all 6 projectsViercode is an IT recruitment and staffing company known for providing skilled specialists in fields such as data analysis, software development, and business process automation. Across their reviews, clients commend their efficient and responsive communication, professional approach, and fast delivery of qualified candidates. Approximately 100% of the feedback is positive, highlighting their speed and alignment with client needs.
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$10,000+$50 - $99 / hr10 - 49
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See all 5 projectsLevels.Digital is a web development company specializing in website development, web design, and front-end development. Reviews indicate a high level of client satisfaction, with 100% positive feedback highlighting their intelligence, attention to detail, and problem-solving capabilities. Clients commend their ability to deliver exceptional results and resolve issues promptly, making them reliable partners in ongoing projects.
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$50,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 4 projectsKYOTU Technology is a web development company renowned for delivering comprehensive services in Website Development and Full-Stack Web Development. They are praised for their proactive, client-focused approach and successful project management. Feedback highlights their expertise in international projects, with no negative reviews reported. Their effective communication and collaboration tools ensure timely project execution.
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$25,000+$50 - $99 / hr10 - 49
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See all 1 projectsárda.works is a web development company specializing in custom website development and web application development. The reviews highlight their effective project management, with daily stand-ups and timely delivery, as well as their exceptional team, particularly the managing partner, Alex. The company has garnered entirely positive feedback, praising their quality work and detail-oriented approach.
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$75,000+$300+ / hr10 - 49Nashville, TN
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See all 2 projectsMORR is a creative agency specializing in brand identity, marketing strategies, and web presence enhancement. Clients appreciate their dedication and strategic support, with 100% of reviewers highlighting their commitment to success and personal guidance. Despite minor feedback regarding market research, the company's methodologies have effectively driven successful project launches and partnerships.
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$5,000+< $25 / hr50 - 249
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See all 2 projectsThe Cogent | Digital Marketing | SEO Company in Jaipur is a digital marketing agency specializing in SEO and social media marketing. Reviews highlight their effective cost management and positive staff behavior, with 100% of clients noting increased website traffic and sales. A minor area for improvement is their response time.
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$1,000+$50 - $99 / hr10 - 49Bankstown, Australia
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See all 1 projectsX2hundred is a web development company specializing in Website Development and Web Design. The feedback is overwhelmingly positive, with 100% satisfaction regarding their project management and adaptability to client needs. They excel in communication, ensuring clients are well-informed and involved in the development process.
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$5,000+$50 - $99 / hr10 - 49Maribor, Slovenia
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See all 1 projectsClover Labs is a web development company specializing in designing and developing e-commerce websites. The overall feedback from their reviews is overwhelmingly positive, with 100% of reviewers highlighting their professionalism, responsiveness, and effective project management. Their ability to deliver a seamless customer experience and achieve significant improvements, such as a reported 200% growth, is highly praised.
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$1,000+$50 - $99 / hrFreelancerSan Diego, CA
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See all 1 projectsKalyxo is a web development company that specializes in improving user experiences and adding new features to web pages. Overall feedback is positive, with 100% of reviewers appreciating their transparent communication and ease of collaboration. The company is noted for delivering projects on time and within budget, making them a reliable choice for custom website development projects.
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$25,000+$25 - $49 / hr50 - 249
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See all 8 projectsServalit is a web development company specializing in both backend and frontend development, as highlighted by their successful creation of a .NET CMS-based web application. 100% of the feedback is positive, emphasizing their responsive communication, seamless integration into client processes, and proactive problem-solving. Clients appreciate their expertise and value for cost, making them a reliable choice for web programming projects.
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$5,000+$25 - $49 / hr2 - 9
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See all 4 projectsDigital Wolves is a web development company specializing in custom website development and web design. With 100% positive feedback, reviewers highlight their exceptional communication, project management skills, and ability to deliver high-quality solutions on time. The team is noted for its effectiveness, work ethic, and openness to feedback, resulting in business outcomes like increased customer interest and potential new opportunities.
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$10,000+$100 - $149 / hr2 - 9Brighton and Hove, England
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See all 4 projectsRetain is a web development company specializing in custom website development and web design. The reviews highlight their effective communication, expert advice, and ability to deliver scalable and dynamic websites, with 100% of reviewers noting their forward-thinking approach and attentiveness to client needs. Retain's work ensures smooth transitions for future developments.
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$5,000+$100 - $149 / hr2 - 9Windsor, Canada
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See all 4 projectsOrqid Design. is a web development company specializing in custom website development and full-stack web development services. They are highly praised for their responsiveness and effective communication, with 100% of reviewers highlighting their timely project management. Clients commend their ability to deliver projects on spec and on time, often exceeding expectations with additional updates.
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$10,000+Undisclosed2 - 9
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See all 2 projects7th Floor Studio is a versatile design and development agency specializing in web design, branding, and marketing services. Clients consistently praise their creativity, effective project management, and excellent price-to-quality ratio, with 100% positive feedback highlighting their ability to exceed expectations and foster business growth through innovative solutions and responsive communication.
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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsJMLNetwork is a web development company that excels in Website Development and Web Design. The reviews reflect 100% positive feedback, highlighting their professionalism, cost-effectiveness, and the ability to enhance user experience. Clients commend their responsiveness and superior project management skills, resulting in a final product that exceeded expectations.
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$10,000+$150 - $199 / hr2 - 9
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See all 1 projectsJoen.io is a development company specializing in creating interactive mobile applications. Reviews indicate that they deliver high-quality, complex products that meet client expectations, with an emphasis on honest partnerships and effective communication. Approximately 100% of the feedback highlights their reliability, although some suggest improvements in project management. Overall, Joen.io is praised for their professionalism and ability to meet deadlines within budget constraints.
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$10,000+Undisclosed2 - 9London, England
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See all 1 projectsUnder2 is a web development company specializing in custom website development and redesign services. Reviews highlight their responsive, pragmatic, and professional project management, with 100% positive feedback regarding their flexibility and alternative solutions. Clients appreciate their user-friendly and clean web designs, reflecting their expertise in full-stack web development.
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$5,000+$25 - $49 / hr10 - 49
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See all 1 projectsInnowave Ltd is a web development company offering services that include custom website development and UI/UX design. Their clients praise their project management skills and timely delivery, with 100% positive feedback on their work quality. However, some note their services can be costly.
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Undisclosed< $25 / hr10 - 49
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See all 1 projectsZepto Digital Labs is a web development company specializing in creating custom digital platforms, with an emphasis on the educational sector. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their timely project delivery, technical expertise, and strong support services. Their development work has successfully scaled platforms to over a million users in three years.
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$10,000+$25 - $49 / hr2 - 9Rawalpindi, Pakistan
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See all 1 projectsZycic is a digital transformation company specializing in healthcare solutions, including EMR/EHR systems, workflow automation, and secure data management. The overall feedback is highly positive, with clients noting improved operational efficiency and data accessibility, and an estimated 50%-60% reduction in time for accessing patient records. Clients commend their strong project management, understanding of healthcare workflows, and ability to deliver practical digital solutions.
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$1,000+< $25 / hr10 - 49
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See all 1 projectsBazingo Inc. Pte. Ltd. is a software development company specializing in creating complex web platforms utilizing technologies such as Magento, Angular, NodeJS, and AWS. The company receives predominantly positive feedback, with clients praising their ability to develop comprehensive IT solutions and provide virtual teams. However, some suggest improvements in efficiency and professionalism for tackling significant market challenges.
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$25,000+$50 - $99 / hr10 - 49
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See all 1 projectsZen Small Biz is a Web Design company specializing in updating and hosting custom websites. The company receives highly positive feedback, with 100% of reviewers praising their effective communication and user-friendly processes. Clients appreciate their ability to explain technical details clearly, enabling businesses to focus on their core activities.
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$25,000+$150 - $199 / hr10 - 49
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See all 3 projectsCorgibytes, LLC is a software consultancy specializing in code audits, legacy code modernization, and technical project management. They consistently receive positive feedback, with clients praising their thorough communication, professionalism, and effective project management. Approximately 100% of reviews highlight their ability to deliver tailored solutions and maintain transparency throughout the development process, ensuring customer satisfaction and successful project outcomes.
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$10,000+$25 - $49 / hr10 - 49Gurugram, India
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See all 1 projectsS2infinitum Softech Pvt Ltd. is a web development company with expertise in JavaScript frameworks such as React, Angular, and React Native, offering both web and mobile application development. They have received 100% positive feedback, highlighting their professionalism, effective project management, and client satisfaction. Clients recommend them for their reliable performance and collaborative approach.
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$5,000+$50 - $99 / hr10 - 49
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See all 2 projectsEnimSoft is a web development company specializing in custom website development and web application development. The company has received overwhelmingly positive feedback, with a focus on timely delivery and proactive problem-solving, as mentioned by 100% of reviewers. Their expertise in front-end development and full-stack web development is commended for aligning with clients' budgets and values.
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$25,000+$50 - $99 / hr2 - 9Frisco, TX
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See all 4 projectsCVI Technologies is a software development company that offers custom software and application development services. Their reviews highlight exceptional communication and project management, with 100% of reviewers praising their responsiveness and problem-solving abilities. Clients appreciate their ability to integrate seamlessly into existing workflows and their proactive approach to addressing challenges, establishing them as a reliable technical partner.
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$1,000+$50 - $99 / hr2 - 9Vancouver, Canada
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See all 1 projectsAlteria Agency is a web development company specializing in backend and frontend solutions, including enterprise-grade systems and dashboard development. The company received positive feedback for its responsive project management and ability to deliver key milestones, with 100% of reviewers highlighting their impressive commitment to completing tasks. However, there is a suggestion for expanding their scope of applications.
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$5,000+$100 - $149 / hr2 - 9Albuquerque, NM
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See all 4 projectsIterative Consulting is a software development company specializing in full-stack software development, database systems, app development, and subscription management software. Their reviews highlight high-quality work, effective project management, and prompt problem resolution, with approximately 100% of reviewers praising their innovation, partnership approach, and integrity. Clients appreciate their cost-effectiveness, expertise, and collaborative nature.
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UndisclosedUndisclosed10 - 49Zirakpur, India
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See all 1 projectsHivends Info Solutions Pvt Ltd is a digital marketing company noted for its expertise in enhancing website rankings on search engines. Feedback from clients highlights their professionalism and management skills, with 100% positive reviews noting their cooperative nature and effective communication. No areas for improvement were identified by reviewers.
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$10,000+$50 - $99 / hr10 - 49Püünsi, Estonia
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See all 7 projectsRenua is a web development company specializing in Front-End Development, Web Programming, and Custom Website Development. They consistently deliver high-quality work within schedule, as noted in 100% of reviews, and their project management and responsiveness have been commended. The company effectively aligns pricing with client budgets while innovating in UX/UI design and online development.
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$5,000+$25 - $49 / hr10 - 49Ciudad de México, Mexico
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See all 3 projectsKokonut Studio is a versatile Web Development company specializing in comprehensive backend and frontend services, including Custom Website Development and Web Design. The overall feedback is positive, with 100% of reviewers highlighting their expertise, client-focused approach, and high-quality industry standards. Clients appreciate their project management capabilities, although some note minor delays and the need for updated UX techniques.
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$1,000+$25 - $49 / hr50 - 249
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See all 2 projectsJwalin Tech is a software development company specializing in custom software and mobile app development, focusing on iOS and Android platforms. Reviews indicate a high level of satisfaction, with clients praising their project management skills and technical expertise. Notably, 100% of reviewers mentioned their strong technical skills, and 50% highlighted their impressive communication and understanding of project needs.
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$10,000+$50 - $99 / hr2 - 9Charghat, Bangladesh
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See all 1 projectsBrevian is a software development company highly regarded for its excellent communication and efficient project execution. They successfully delivered multifunctional point-of-sale software, integrating seamlessly with client teams. The reviews reflect 100% positive feedback, with significant emphasis on their quick responsiveness and alignment with client vision.
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$5,000+$50 - $99 / hr50 - 249Islamabad, Pakistan
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See all 4 projectsRed Buffer is a specialized AI and machine learning company known for its expertise in custom software development, including natural language processing and visual recognition. The company has received overwhelmingly positive feedback, with 100% of reviewers highlighting their project management skills and the talent of their team. Clients commend Red Buffer for their adaptability, professionalism, and cost-effectiveness, making them a reliable partner for complex projects.
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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+$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 -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
39.3/40.019.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.4/40.016.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.3/40.016.6/20 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.