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), 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 / hr10 - 49
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See all 1 projectsSaadhvi Technology is a custom IT software development company, praised for delivering a stable applicant tracking system. Their well-structured and dedicated team, featuring highly skilled developers, ensures effective and timely project management. Feedback indicates 100% satisfaction, with no areas for improvement mentioned by reviewers.
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$5,000+Undisclosed10 - 49
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See all 2 projectsOne Zone Agency is a web development company specializing in Website Development, Branding, and SEO/SEM. The agency consistently receives positive feedback, with 100% of reviews highlighting their timely delivery and alignment with client needs. Reviewers frequently commend their ability to create unique corporate identities and effective social media management.
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Undisclosed$25 - $49 / hr10 - 49Anand, India
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See all 2 projectsEngineeous is a dynamic technology company specializing in software development and digital transformation solutions. With 100% positive feedback, reviewers commend their technical expertise, timely delivery, and strong project management. Clients appreciate their proactive approach and the innovative solutions provided by their team, particularly the engaging leadership of Kalpesh. While highly satisfied, some suggest enhancing developer onboarding processes.
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$5,000+Undisclosed10 - 49
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See all 1 projectsOdev is a web development company specializing in full-stack web development for web3 projects, including smart contract and node development. The overall feedback from reviewers is positive, highlighting Odev's high-quality developers and excellent cultural fit, with 100% of reviewers appreciating their responsiveness and integration as part of the client's team.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsEmporionSoft Pvt Ltd is a web development company that specializes in full-stack web development, focusing on both front-end and back-end development. Reviews highlight their exceptional project management and technical expertise, with 100% of reviewers praising their adaptability and responsiveness. However, some suggest more frequent project updates could improve client communication.
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$1,000+< $25 / hr2 - 9
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See all 3 projectsDigital GrowT excels in Shopify store development and digital marketing, providing comprehensive web development and online development services. With consistently positive feedback, 100% of reviewers commend their transparency, timely delivery, and innovative suggestions. Clients appreciate their proactive communication and ability to align with business goals, resulting in enhanced website functionalities and improved conversion rates.
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$1,000+$25 - $49 / hr10 - 49Faridabad, India
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See all 5 projectsMeta 11 Web Services Pvt. Ltd. is a distinguished web development company specializing in website development, web design, and digital marketing. Garnering 100% positive feedback, clients frequently commend their professional project management, timely delivery, and tailored solutions. Approximately 50% of reviewers emphasize their exceptional responsiveness and alignment with company values.
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$50,000+$100 - $149 / hr10 - 49London, England
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Made by ON is a web development firm. The London, England-based company specializes in Web Development and Digital Strategy.
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$10,000+$25 - $49 / hr10 - 49Karachi, Pakistan
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See all 1 projectsAxecorp Technologies is a web development company specializing in creating comprehensive online solutions, including custom website and web application development. Their reviews highlight a strong emphasis on communication and problem-solving, with 100% of reviewers appreciating their ability to deliver complex projects on time while maintaining high-quality standards. The company is noted for its excellent value for cost and dedication to client satisfaction.
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$1,000+$25 - $49 / hr10 - 49
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See all 2 projectsAlaito Agency is a web development company known for high-quality website development and professional project management. Clients commend their ability to deliver projects on time and their effective communication, with 100% of reviewers highlighting their exceptional teamwork and project execution. The agency is praised for its reliable partnership and value for cost.
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$1,000+< $25 / hr10 - 49Rajkot, India
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See all 1 projectsDsolstice Infotech is a web development company excelling in customized website development, with a focus on creating professional and user-friendly websites. Reviews highlight their excellent project management, timely delivery, and proactive communication, with 100% positive feedback emphasizing their commitment to quality and understanding of client needs.
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$10,000+$25 - $49 / hr10 - 49Prishtina, Kosovo
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See all 2 projectsPristine Tech is a software development company specializing in custom web and application solutions, including SaaS products and digital menu management software. The company is praised for its collaborative approach, high-quality output, and proactive communication. Both clients highlighted Pristine Tech's flexibility and responsiveness, with minor feedback on improving scope definition. With a strong positive feedback rate, the firm effectively supports clients' evolving needs.
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$1,000+$25 - $49 / hr10 - 49
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See all 2 projectsE50Ads is a marketing agency specializing in social media management, targeted advertising, and video content creation. The company has received overwhelmingly positive feedback, with clients praising their tailored strategies and professionalism. Over 90% of reviewers highlight their exceptional project management and ability to exceed expectations. Some suggest more proactive communication early on, but their results-driven approach consistently delivers significant engagement and business growth.
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$1,000+< $25 / hr10 - 49Morbi, India
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See all 1 projectsStackbizz Solutions is a reputable web development and SEO company, praised for its professionalism and client-centric approach. With services that include website design, SEO optimization, and customized features, the company received overwhelmingly positive feedback, with 100% of reviewers recommending their timely and efficient project management. Their ability to significantly enhance online presence and brand visibility is a recurring theme in reviews.
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$1,000+< $25 / hr10 - 49Surat, India
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See all 1 projectsHMR Technologies is a comprehensive app and web development company specializing in enhancing digital platforms with core functionalities such as real-time booking and secure payments. The company has received overwhelmingly positive feedback, with clients praising their technical expertise, adaptability, and strong project management skills, leading to significant increases in app downloads and user engagement. Notably, 100% of reviewers highlight their professionalism and responsiveness.
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$10,000+$100 - $149 / hr50 - 249Vancouver, Canada
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See all 2 projectsDigitalist North America is a web application development company specializing in UI/UX design and full-stack web development. They have received overwhelmingly positive feedback, with 100% of reviewers praising their expertise, flexibility, and high-quality development work. Their team is noted for strong communication, effective collaboration, and the ability to meet fixed-cost project requirements.
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Undisclosed< $25 / hr50 - 249Ahmedabad, India
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See all 8 projectsTechnoville Consultants Pvt. Ltd. is a proficient web development company, specializing in Website Development and demonstrated by their successful collaboration with clients like Bagadiya & Jain. Their reviews highlight timely delivery and effective communication, with 100% of feedback being positive, particularly praising their ability to enhance online presence through quality web solutions.
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$1,000+$50 - $99 / hr2 - 9Sofia, Bulgaria
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See all 2 projectsPraime Studio is a web development company specializing in custom website development and full-stack web development. They consistently deliver high-quality work on time, with 100% positive feedback highlighting their ability to improve website functionality and user engagement. Clients appreciate their efficient communication and ease of making updates to web pages independently.
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Undisclosed$25 - $49 / hr2 - 9
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See all 1 projectsLudo Solutions is a web development company specializing in custom website development with a focus on WordPress and WooCommerce integration. The feedback highlights their excellent communication, project management, and understanding of client needs, with 100% of reviewers expressing satisfaction. Clients appreciate their consultative approach and ability to align with business goals effectively.
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$1,000+$100 - $149 / hr2 - 9
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See all 3 projectsTechNextHub is a web development company specializing in Website Development and Web Design. The majority of reviews (100%) highlight their timely delivery, quality design, and clear communication. Clients consistently praise their attention to detail and responsiveness, making them a highly recommended choice for custom website development projects.
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$1,000+< $25 / hr2 - 9New Delhi, India
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See all 2 projectsDaksha System and Services is a mobile and web development company noted for its technical expertise and commitment to delivering high-quality applications for iOS and Android. With a focus on user experience and functionality, 100% of reviewers commend their responsive and proactive project management, while 50% highlight their exceptional technical capabilities and work ethics. Some areas for improvement include feedback acknowledgment speed.
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$1,000+$50 - $99 / hr10 - 49
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See all 2 projectsKeywordCore is a web development company specializing in custom website development and web application development. They received positive feedback for their responsive and business-oriented approach, with 100% of reviewers noting their effective communication and delivery on promises. However, 20% of feedback suggested expanding their service offerings, such as video production.
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$1,000+$25 - $49 / hr2 - 9Durban, South Africa
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See all 2 projectsZonkeTech is a web development company specializing in database and web development services. Reviewers consistently praised their high standard of work and effective communication, with 100% positive feedback highlighting their domain knowledge of high-volume transactional databases. Their expertise in API development and front-end solutions is also frequently noted.
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UndisclosedUndisclosed50 - 249Ahmedabad, India
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See all 1 projectsTechify Solutions Pvt Ltd is a web development company specializing in web programming and devops services. Their reviews highlight their proactive consultation and dedication to customer satisfaction, with a 100% positive feedback rate. Their team is noted for delivering high-quality solutions on time, with impressive project management and excellent communication.
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$1,000+$25 - $49 / hr10 - 49Rawalpindi, Pakistan
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See all 4 projectsManiWebify Limited is a web development company specializing in Website Development, Web Design, and SEO Services. The reviews highlight their impressive project management and timely delivery, with 100% of feedback noting exceptional quality and cost-effectiveness. Clients also appreciate their fast communication and user-friendly, functional designs, with no areas identified for improvement.
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$1,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 1 projectsBig Heap Technologies is a mobile game development company praised for its excellent project management, communication, and quality work. The company successfully developed a driving simulation game, leading to a contract with a top publisher. 100% of feedback emphasizes their dedication and ability to meet project goals effectively.
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Undisclosed$25 - $49 / hr2 - 9
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See all 1 projectsWe are an experienced software development company that specializes in designing, developing, and implementing custom web, mobile, and desktop applications. Our team of experienced
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$1,000+$50 - $99 / hr50 - 249
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See all 3 projectsPNC Solutions is a web development company specializing in professional website design and custom development services. According to client feedback, 100% of reviewers appreciate their ability to enhance online representation, with 50% noting the user-friendly backend features. While project management was initially exemplary, consistency varied with staff changes. Overall, clients recognize PNC Solutions for their focused attention and successful project outcomes.
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$1,000+$50 - $99 / hr10 - 49Belfast, Northern Ireland
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See all 5 projectsThe House Of Code specializes in Website Development and Web Design, delivering high-functioning, user-friendly systems for clients. Reviews highlight their professional project management, exceptional dedication, and reliability, even under pressure. Clients appreciate their quick response times and strong problem-solving skills, making them a highly recommended partner for web development projects.
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$1,000+$25 - $49 / hr10 - 49Guayaquil, Ecuador
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See all 3 projectsBig Project is a web development company specializing in custom website development and mobile application solutions. Their work consistently receives positive feedback, with over 90% of reviewers praising their effective communication and project management. Clients highlight their ability to exceed expectations, particularly in user engagement and deliverable quality.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsTechrever is a web development company specializing in Website Development and Web Design. The company has garnered positive feedback for creating excellent complex websites, with 100% of reviewers mentioning satisfaction with the final product. However, 100% also noted room for improvement in communication and deadline execution.
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$1,000+< $25 / hr10 - 49Gandhinagar, India
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See all 1 projectsMeritorious CodeCrafters Private Limited is a proficient talent acquisition firm specializing in providing qualified IT professionals tailor-fit to clients' project needs. Reviews reflect a 100% positive feedback rate, highlighting their exceptional project management, responsiveness, and ability to deliver candidates quickly. While communication during peak periods could improve, they are praised as a reliable partner.
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$10,000+< $25 / hr10 - 49
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See all 3 projectsWireCamp Interactive LLP is a full-stack web development company known for its robust project management and expertise in web application development. They are praised for delivering projects on time and within scope, as evidenced by positive feedback across all reviews, reflecting their strong commitment to client satisfaction and effective problem-solving capabilities.
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$10,000+$25 - $49 / hr2 - 9Poznań, Poland
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See all 2 projectsKivy Software is a web development company specializing in backend development using Python and Django, as well as frontend development with CSS, HTML, and React. According to reviews, 100% of clients commend their expertise and project management skills, particularly their ability to adhere to deadlines and deliver exceptional UX design. They are praised for their innovative solutions and high-quality coding.
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$1,000+< $25 / hr2 - 9
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See all 2 projectsZTABS is a web development company specializing in full-stack web development and custom website development, including intricate front-end and back-end systems. With positive feedback from 100% of reviewers, clients praise their effective project management, timely delivery, and ability to exceed expectations in creating complex systems. Their commitment to client needs and adaptability in project execution are particularly noteworthy.
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$1,000+$100 - $149 / hr10 - 49Charleston, SC
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See all 13 projectsLaunchpeer is a company offering a range of services, including mobile app development, design, prototyping, and fundraising coaching. Reviews indicate mixed feedback, with approximately 50% expressing dissatisfaction due to project management issues, unmet deliverables, and communication challenges. Conversely, other clients highlight their design and prototyping skills, with about 30% praising their ability to create polished prototypes and effectively grasp client visions. The company's professionalism and accessibility are also noted positively in some reviews, yet concerns about reliability and ethical practices persist.
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$10,000+< $25 / hr10 - 49
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See all 1 projectsInfologics is a blockchain development company specializing in integrating blockchain technology and smart contract development into gaming projects. The feedback highlights their expertise in P2E games, effective communication, and timely project delivery. Impressively, 100% of reviewers noted their responsibility and competitive pricing, with no suggestions for improvement.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 5 projectsGrowIdeas Innovations LLP is a web development company that excels in building and revamping websites, providing modern and user-friendly platforms. With a strong focus on communication and timely delivery, 100% of reviews highlight their attentiveness and value for cost, though some suggest improvements in design thinking and QA testing.
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$1,000+< $25 / hr10 - 49Chennai, India
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See all 2 projectsWEBDIGITA is a web development company specializing in eCommerce solutions and omnichannel frameworks. Their clients praise their ability to scale, professional expertise, and effective project management, with 100% positive feedback in these areas. Notably, clients report enhanced business outcomes, such as increased active session durations and reduced bounce rates. Some suggest a larger team might improve in-person collaboration.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsesoftbay is an IT services company specializing in web design and support. Reviews indicate a 100% positive feedback rate, highlighting their ability to deliver websites and apps on time, with end-users appreciating their work. Clients are impressed by their problem-solving skills and seamless project management.
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Undisclosed< $25 / hr2 - 9
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See all 8 projectsWebtwine Technologies Pvt. Ltd. is a web development company specializing in custom website development, web programming, and ongoing website support. With over 90% positive feedback, clients commend their responsive communication and ability to deliver timely solutions. Notably, 80% of reviewers highlight their expertise in web development and programming, noting their efficient management of website updates and improvements.
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$1,000+$25 - $49 / hr2 - 9Kandy, Sri Lanka
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See all 2 projectsLycerix is a UI/UX design company adept at creating intuitive and emotionally engaging designs, as demonstrated through their work on the AfterVoice app. Over 80% of users described the interface as “intuitive” and “emotionally engaging,” and their design system reduced development time by 25%. The company is praised for blending technical precision with empathy, delivering visually striking yet accessible designs.
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UndisclosedUndisclosed2 - 9Patna, India
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See all 1 projectsIND Tech Mark is a tech and digital marketing company specializing in developing high-performance platforms and executing effective digital marketing strategies. Approximately 95% of reviews highlight their technical expertise and commitment to results, with a noted 40% increase in user engagement and 25% higher conversion rates. While praised for professionalism and responsiveness, minor improvements in communication and documentation were suggested.
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UndisclosedUndisclosed50 - 249
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See all 3 projectsSolutionsloft is a web development company specializing in custom web application development and full-stack solutions. The reviews highlight their expertise in seamless web and iOS app integration, custom LiDAR technology, and effective project management. With 100% positive feedback, clients commend their professionalism, responsiveness, and ability to deliver complex projects on time and within budget.
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$5,000+$25 - $49 / hr10 - 49
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See all 10 projectsTailored Website Design is a web development company specializing in custom website development and web design. Reviewers highlight their tailored approach and expertise in creating seamless user experiences, with 100% of feedback noting improved operational efficiency and user engagement. The company is commended for its responsive communication and commitment to project objectives, with minor suggestions for more frequent updates.
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$5,000+< $25 / hr50 - 249
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See all 6 projectsQualitica Group is a professional web development company specializing in testing services for CRM and ERP systems. Reviews highlight their reliability, adherence to deadlines, and the professionalism of their engineers, with 100% positive feedback on their ability to meet strict requirements and deliver error-free products. Their communication and management skills are also frequently praised, demonstrating a commitment to client satisfaction.
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$1,000+< $25 / hrFreelancerKakamega, Kenya
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See all 2 projectsGustonera is a versatile web development company specializing in custom website development and complex backend systems. Reviewers consistently praise their ability to understand client needs and deliver creative, high-quality, and professional web solutions. Notably, 100% of reviewers highlighted Gustonera's excellent communication and adaptability to changing project requirements, showcasing their commitment to client satisfaction and effective project management.
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$10,000+$25 - $49 / hr50 - 249
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See all 1 projectsIGODEV LLC is a software development company specializing in front- and backend development through staff augmentation. The company receives positive feedback, with 100% of reviewers highlighting their flexibility and agility in project management. Clients appreciate their ability to meet deadlines and produce high-quality work, affirming their satisfaction with IGODEV's services.
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$25,000+$25 - $49 / hr10 - 49Gurugram, India
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See all 5 projectsSynergyLabs provides comprehensive Web Development and Web Design services, specializing in creating web-based platforms for client management. Their reviews highlight timely project completion, effective communication, and responsiveness to feedback, making them a reliable partner for Online Development projects.
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$5,000+$25 - $49 / hr10 - 49Kolkata, India
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See all 3 projectsEntesta is a web development company offering services such as custom website development and full-stack web development. While they successfully completed a migration project, 100% of reviews highlight significant delays in other projects, with core functionalities not meeting expectations, indicating a need for improved project management and timely delivery.
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List of the Top 15 JavaScript Development Companies
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$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 -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
38.5/40.019.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% 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
38.7/40.019.4/20 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+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.5/40.017.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.8/40.019.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Web Development40% JavaScript85% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.6/40.018.6/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% 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 -
$10,000+< $25 / hr250 - 999Kolkata, India
Ability to deliver
36.7/40.019.4/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.7/40.018.8/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% 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 -
$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 -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.7/40.019/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 -
$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 -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.3/40.018.2/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38/40.018.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$10,000+$50 - $99 / hr10 - 49Montevideo, Uruguay
Ability to deliver
38.3/40.019.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.2/40.016.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other
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.