Top JavaScript Developers
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 88 projectsDigis, a Fiverr company (NYSE: FVRR), excels in providing comprehensive web development and staff augmentation services. With a focus on custom website development, front-end and back-end development, they consistently deliver high-quality projects, demonstrating 100% positive feedback for their technical expertise and effective project management. Clients frequently highlight their reliability and seamless integration into existing teams, with 80% mentioning their exceptional communication skills and adaptability.
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$5,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 14 projectsIT Services India Inc. is a proficient web development company offering services like custom website development and web application development. Reviews highlight their prompt project management and effective communication, with 100% of feedback being positive and 66% of reviewers emphasizing the company's responsiveness and ability to deliver tailored solutions within budget constraints.
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$5,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 12 projectsProvis Technologies Private Limited is a web development company specializing in Website Development and Web Programming, with strong capabilities in Custom Website Development and Front-End Development. The company has received overwhelmingly positive feedback from clients, with approximately 100% of reviewers expressing satisfaction with their timely delivery, high-quality work, and responsive communication. Clients particularly appreciate their ability to adapt and provide ongoing support.
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$10,000+Undisclosed50 - 249San Francisco, CA
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See all 87 projectsAirdev is a web development company specializing in custom website and web application development. With a 100% positive client feedback rate, clients consistently praise Airdev for their efficient project management, timely deliveries, and excellent communication. Approximately 90% of reviewers highlight their ability to align closely with client needs and deliver user-friendly MVPs and web platforms.
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$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
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See all 46 projectsXmartlabs is a full-stack web development company highly praised for its comprehensive web and app development services. Demonstrating consistent excellence, 100% of reviewers commend their project management, timely delivery, and ability to function as a seamless extension of clients' teams. Their expertise in front-end and back-end development, along with a client-centered approach, ensures successful project outcomes and positive client experiences.
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$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 25 projectsSoftonix is a Full-Stack Web Development company specializing in Front-End and Back-End Development, Web Application Development, and Custom Website Development. Across the reviews, 100% of clients praised their exceptional communication, problem-solving abilities, and timely delivery of high-quality work. Approximately 80% of reviewers highlighted their commitment and alignment with client business goals, emphasizing their value beyond technical execution.
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$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
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See all 53 projectsToptal is a versatile technology company specializing in custom website development, web programming, and staff augmentation services. The company is highly valued for its talent sourcing abilities, with approximately 85% of reviews highlighting their pre-screening process and ability to match clients with skilled developers and designers. Clients frequently mention positive outcomes, such as project efficiency and high-quality deliverables, with over 90% of feedback reflecting satisfaction with their services.
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$25,000+$25 - $49 / hr50 - 249Newark, DE
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See all 74 projectsINOXOFT is a Full-Stack Web Development company highly praised for delivering Custom Website Development and Web Application Development services. Approximately 90% of reviews highlight their excellent project management and problem-solving capabilities, emphasizing their strong communication skills and ability to meet deadlines. Clients consistently appreciate their ability to create scalable, user-friendly platforms, with 60% noting significant improvements in user engagement and operational efficiency.
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$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
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See all 37 projectsSpdLoad is a full-stack web development company renowned for its expertise in custom website development and web application projects. With over 90% positive feedback, clients consistently praise their professional project management, timely delivery, and attention to detail. Approximately 80% of reviewers highlight their flexibility and responsiveness, while 70% commend their technical proficiency and capacity to meet complex requirements.
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$1,000+< $25 / hr250 - 999Walpole, MA
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See all 45 projectsHTMLPanda is a web development company specializing in custom website development and web application development. With a focus on both frontend and backend development, they have garnered positive feedback, with 100% of reviewers noting their professionalism and responsiveness. Clients appreciate their problem-solving capabilities and ability to deliver measurable outcomes, such as increased traffic and optimized functionality.
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$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 26 projectsIncora is a versatile web development company specializing in custom web development and front-end UI development. The overall feedback is overwhelmingly positive, with more than 90% of reviewers commending their professionalism, technical skills, and timely delivery. A notable 80% of reviewers highlight their responsive communication and adaptability to project changes, making Incora a trusted partner for complex online development projects.
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$50,000+$150 - $199 / hr250 - 999Irvine, CA
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See all 34 projectsVincit is a full-stack web development company specializing in custom web development, web programming, and web application development. Across their reviews, clients consistently praise their exceptional project management and high-quality deliverables, with around 90% of feedback being positive. Notably, 60% of reviewers highlighted Vincit's ability to efficiently integrate complex systems, enhancing user experience and functionality.
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$25,000+$50 - $99 / hr50 - 249L'viv, Ukraine
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See all 55 projectsBinary Studio is a web development company known for its expertise in full-stack web development, custom website development, and web application development. With a remarkable 100% positive feedback rate, clients consistently praise their ability to integrate seamlessly with in-house teams and deliver high-quality, scalable solutions. Approximately 80% of reviewers highlight the company's impressive technical skills and adaptability to project needs.
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$25,000+$150 - $199 / hr2 - 9New York, NY
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See all 44 projectsStudio Simpatico is a web development company specializing in custom website development, web design, and UX. They are noted for their strong project management skills and ability to deliver high-quality, human-centered digital experiences. With 100% positive feedback, clients emphasize their creativity, professionalism, and clear communication. Studio Simpatico is praised for meeting timelines and expectations while providing excellent value for the cost.
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$50,000+$50 - $99 / hr250 - 999Zagreb, Croatia
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See all 35 projectsQ agency is a versatile web development company specializing in custom website development, front-end and back-end development, and web application development. Feedback from clients indicates an overall positive response, with approximately 86% praising their project management, communication, speed, and output quality. However, one review highlighted issues with code quality and experience, suggesting room for improvement in consistency and expertise. Overall, Q agency is commended for their dedication, flexibility, and ability to deliver on complex projects.
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$10,000+$50 - $99 / hr10 - 49Covina, CA
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See all 29 projectsThe Frontend Company is a web development firm specializing in front-end design and development, with a focus on enhancing UI/UX and delivering customized solutions. Clients consistently praise their professionalism and ability to meet timelines, with 100% of reviewers highlighting their responsive communication and project management skills. Additionally, 75% of reviews emphasize their consultative approach and alignment with company values.
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$50,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 65 projectsOTAKOYI is a versatile web development company excelling in Website Development, Web Programming, and Full-Stack Web Development. With a focus on custom solutions, they deliver high-quality web applications and platforms, as evidenced by overwhelmingly positive feedback from clients, praising their technical expertise, project management, and proactive problem-solving. Approximately 90% of reviewers highlight their timely delivery and clear communication as key strengths.
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$25,000+$25 - $49 / hr50 - 249
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See all 24 projectsCognitiveClouds is a full-service engineering company specializing in Web Development and Web Application Development, notably excelling in Custom Website Development and Full-Stack Web Development. Reviews reflect an 80% positive sentiment, highlighting their strong project management capabilities, effective communication, and ability to adapt to complex requirements. Approximately 60% of reviewers commend their agility and responsiveness to client needs.
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$5,000+$25 - $49 / hr50 - 249Hong Kong, Hong Kong
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See all 29 projectsFora Soft is a web development company specializing in web application development, custom website development, and full-stack web development. The overall feedback is overwhelmingly positive, with 100% of reviewers highlighting their professionalism, high-quality deliverables, and effective project management. Impressively, 80% of reviews emphasize their seamless communication and responsiveness during projects.
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$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
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See all 29 projectsFively is a web development company specializing in custom website development, full-stack web development, and web application development. The feedback from their reviews indicates a high level of satisfaction, with approximately 100% of clients praising their technical expertise, efficient project management, and exceptional communication skills. Clients appreciate their ability to deliver projects on time and their responsiveness to client needs, making them a reliable choice for web programming and online development projects.
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$25,000+$50 - $99 / hr50 - 249London, England
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See all 34 projectsImaginary Cloud is a Full-Stack Web Development company known for delivering comprehensive web-based solutions, including Web Application Development, Front-End Development, and Back-End Development. Across their reviews, 100% of clients commend their professional project management, timely delivery, and consistent communication. Their flexibility and ability to adapt to client needs are frequently highlighted, with multiple reviewers praising their capacity to handle evolving project requirements efficiently.
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$10,000+< $25 / hr1,000 - 9,999Miami, FL
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See all 64 projectsBacancy is a web development company specializing in full-stack and custom website development, web programming, and mobile app development. The company consistently receives positive feedback, with over 90% of reviewers highlighting Bacancy's expertise, project management, and ability to deliver projects within budget. Clients appreciate their problem-solving skills and dedication, with 70% of reviews specifically mentioning their strong communication and responsiveness.
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$10,000+< $25 / hr50 - 249Nadiad, India
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See all 54 projectsGroovy Technoweb Pvt. Ltd. is a web development company that specializes in Full-Stack Web Development and Custom Website Development. Clients frequently commend their professionalism, dedication, and effective communication, with 80% of reviews highlighting their innovative approach and reliable project delivery. However, 20% of feedback mentions areas for improvement, particularly in quality assurance and design. Overall, they foster a collaborative environment, aligning well with client needs.
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$10,000+$50 - $99 / hr10 - 49Porto, Portugal
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See all 17 projectsMarzee is a web development company specializing in custom website development, full-stack web development, and web application development. Their clients praise their collaborative mentality, responsiveness, and ability to deliver projects on time with improved technical outcomes such as increased traffic, enhanced SEO, and user engagement. Over 90% of the reviews highlight their project management efficiency and ability to meet stringent deadlines. However, clients suggest they propose more creative ideas to improve marketing efforts.
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$50,000+$25 - $49 / hr50 - 249Sofia, Bulgaria
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See all 28 projectsCodeIT is a web development company adept in Web Development, Custom Website Development, and Web Application Development services. With 100% positive reviews, clients praise their effective project management, responsiveness, and technical expertise, as reflected in improved website performance and user satisfaction. Their focus on understanding client needs and delivering high-quality, future-ready solutions is consistently highlighted across reviews.
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$50,000+Undisclosed50 - 249Bristol, England
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See all 5 projectsTorchbox is a web development company that excels in custom website development, web design, and SEO consultancy. They receive overwhelmingly positive reviews, with clients praising their strong project management, high-quality work, and user-centered approach. Notably, 100% of reviewers highlight their effective communication and alignment with client values, contributing to transformative outcomes and enhanced digital strategies.
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$5,000+$25 - $49 / hr10 - 49Poltava, Ukraine
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See all 14 projectsAleannlab is a versatile web development company specializing in custom website development, front-end and back-end development, and full-stack web development. With a consistent record of timely delivery and high satisfaction, 100% of reviewers commend their excellent communication and project management. Aleannlab is praised for its ability to integrate complex technologies and maintain a collaborative and professional relationship with clients.
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$50,000+$150 - $199 / hr50 - 249Vancouver, Canada
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See all 31 projectsKanopi Studios is a web development company specializing in custom website development, front-end development, and migration services. With a 100% positive feedback rate, clients consistently commend their professional project management, timely delivery, and comprehensive technical expertise. Approximately 85% of reviewers highlighted Kanopi Studios' ability to align with client culture and maintain excellent communication throughout the project lifecycle.
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$25,000+$50 - $99 / hr50 - 249
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See all 21 projectsVinta Software, a full-stack web development company, is lauded for its expertise in Python, Django, and React, offering services such as web programming, custom website development, and front-end and back-end development. With consistent positive feedback from clients, they excel in delivering projects on time, showcasing flexibility and deep technical skills. Approximately 90% of reviews highlight their strong project management and responsiveness.
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$100,000+$200 - $300 / hr50 - 249Los Angeles, CA
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See all 24 projectsAE Studio is a versatile technology firm specializing in full-stack web development, web application development, and data science. The company has received overwhelmingly positive feedback, with approximately 90% of reviews highlighting their technical expertise, project management skills, and ability to deliver projects on time and within budget. Reviewers frequently commend AE Studio's attention to detail, flexibility, and innovation-driven approach to custom website development and web design.
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$25,000+$25 - $49 / hr50 - 249Amsterdam, Netherlands
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See all 37 projectsAttract Group is a web development company specializing in comprehensive online development solutions, including custom website development, front-end and back-end development, and web application development. The reviews reflect a 100% positive feedback rate, highlighting their professionalism, dedication, and ability to deliver projects on time. Reviewers frequently commend their responsiveness and project management skills, with 70% noting the impressive integration of design and functionality in their web solutions.
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$5,000+$50 - $99 / hr10 - 49Fair Oaks, CA
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See all 13 projectsInterCode is a proficient web development company specializing in areas such as ongoing web development, web design, and web application development. The majority of reviews (approximately 90%) highlight their effective communication, innovation, and alignment with client budgets, although occasional inaccuracies in task estimates were noted. Overall, InterCode is recognized for delivering timely and advanced solutions.
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$5,000+$25 - $49 / hr10 - 49Yerevan, Armenia
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See all 9 projectsPRIME IT Web Development specializes in Website Development, offering a range of services including full-stack, custom web development, and web programming. With 100% positive reviews, clients commend their expertise in UI/UX design, particularly using Figma, and their proficiency in technologies like React.js, Node.js, and Nest.js. Reviewers frequently highlight PRIME IT's commitment to delivering projects on time and their ability to create engaging, user-friendly digital experiences.
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UndisclosedUndisclosed50 - 249Wrocław, Poland
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See all 2 projectsCallstack is a proficient software development company specializing in React Native and mobile application modernization. Reviews highlight their exceptional technical skills, swift development pace, and effective collaboration, with 100% positive feedback noting improved app performance and UI/UX. Their services include platform migration, development consultancy, and staff augmentation for enhancing codebase and app features.
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$25,000+$25 - $49 / hr50 - 249Yerevan, Armenia
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See all 12 projectsSimply Technologies is a full-stack web development company with expertise in front-end and back-end services, offering custom website development and web application development. They are highly praised for their professionalism, responsiveness, and effective project management, with 100% of reviews highlighting their impressive communication and attention to detail. Clients appreciate their ability to deliver high-quality, functional software solutions on time.
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$10,000+$50 - $99 / hr50 - 249San Francisco, CA
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See all 32 projectsPovio is a web development company offering services ranging from custom website development to full-stack web development. Across their reviews, 100% of clients praised their communication, responsiveness, and project management skills. They are noted for their professionalism and ability to deliver projects on time, with approximately 70% of reviewers highlighting their proactive approach and innovative problem-solving.
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$25,000+$25 - $49 / hr50 - 249Yeroskipou, Cyprus
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See all 27 projectsSysGears is a proficient web development company offering services such as custom website development, web application development, and full-stack web development. The company is noted for its high level of technical expertise, as evidenced by consistently positive feedback from clients, with 100% of reviews highlighting timely delivery, effective communication, and innovative solutions. Approximately 86% of reviewers praised their expertise in specific technologies like React and Scala.
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$25,000+$50 - $99 / hr10 - 49
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See all 18 projectsAspirity is a reputable web development company specializing in UX/UI design, front-end development, and comprehensive web application solutions. With an impressive track record, they deliver high-quality, user-centric designs and efficient project management, as highlighted by over 90% positive feedback. Clients commend their professionalism, agility, and dedication to understanding business needs, with 60% specifically mentioning their exceptional UX/UI capabilities and proactive communication.
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$10,000+$50 - $99 / hr50 - 249Austin, TX
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See all 34 projectsMultidots is a web development company highly regarded for its expertise in custom website development and full-stack web development, particularly using WordPress. The company consistently receives positive feedback, with reviews highlighting its project management efficiency, technical proficiency, and strong communication. Approximately 90% of reviewers praise Multidots for delivering projects on time and within budget, with over 80% emphasizing their ability to adapt to client needs and provide strategic input.
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$50,000+$100 - $149 / hr50 - 249Bentonville, AR
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See all 10 projectsMetova is a web development company specializing in full-stack web development and SaaS solutions. Reviews highlight their exceptional project management, responsive communication, and commitment to client interests, with 100% positive feedback on their value-oriented partnership approach. Their expertise is evident in successful telematics platform development and measurable ROI for clients.
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$5,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 23 projectsStubbs is a versatile Web Development company excelling in Custom Website Development, Web Application Development, and Full-Stack Web Development. With a focus on delivering projects on time and maintaining high-quality standards, Stubbs has received overwhelmingly positive feedback. Reviewers consistently highlight the company’s proactive communication, punctuality, and impressive UI/UX design capabilities. High ratings and strong alignment with client needs are recurring themes, with over 90% of reviews praising their value and effectiveness.
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$10,000+Undisclosed250 - 999Ramsey, NJ
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See all 98 projectsAlgoworks is a versatile web and mobile application development company, excelling in custom web development, front-end and back-end services, and Salesforce integration. Among their reviews, 80% highlight their efficient project management, timely delivery, and strong communication, while one review mentions concerns about code quality and transparency. Overall, Algoworks is praised for its technical expertise and client-focused approach.
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$75,000+$200 - $300 / hr10 - 49Temecula, CA
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See all 8 projectsReaktiv is a web development company specializing in WordPress and custom website development. They consistently receive positive feedback, with clients praising their proactive communication, technical expertise, and ability to deliver projects on time. Nearly 100% of reviewers commend their reliability and responsiveness, highlighting their capability to handle complex web programming challenges efficiently.
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$5,000+$25 - $49 / hr50 - 249
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See all 47 projectsGroupBWT is a versatile web development company specializing in custom web solutions, including full-stack web development, web application development, and data scraping. They receive overwhelmingly positive feedback, with nearly 100% of reviews highlighting their project management skills and ability to deliver tailored solutions on time and within budget. Reviewers frequently praise their responsiveness and adaptability to client needs.
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$25,000+$100 - $149 / hr50 - 249Schenectady, NY
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See all 18 projectsJahnel Group, Inc. is a distinguished web development company noted for its expertise in full-stack web development, custom website development, and web application development. With 100% positive feedback, clients consistently praise their project management, flexibility, and dedication to delivering on-time and beyond expectations. Approximately 80% of reviewers highlight their impressive culture and team integration, making them a sought-after partner for diverse technological solutions.
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$10,000+$50 - $99 / hr250 - 999Kharkiv, Ukraine
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See all 23 projectsZfort Group is a web development company specializing in custom website development, web application development, and full-stack web development. Across multiple reviews, 100% of clients report positive experiences, noting their professionalism, effective project management, and strong communication skills. Clients consistently highlight their reliability, expertise, and commitment to delivering high-quality solutions that exceed expectations, with no significant areas of improvement mentioned.
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$75,000+Undisclosed250 - 999Charlotte, NC
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See all 56 projectsDualboot Partners is a web development company specializing in custom website development, web application development, and full-stack web development. Reviews indicate strong client satisfaction, with 100% positive feedback praising their seamless integration with client teams, project management excellence, and technical expertise. Approximately 40% of reviewers highlight their ability to integrate culturally, making them an invaluable resource for project success.
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$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 30 projectsdotcode is a full-stack web development firm specializing in custom website and web application development. Reviews indicate a strong emphasis on client collaboration and project ownership, with 100% positive feedback highlighting their proactive communication and innovative solutions. Clients frequently praise their user-friendly designs and strategic approach, with 80% noting significant improvements in user engagement and conversion rates.
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$10,000+$25 - $49 / hr50 - 249Randburg, South Africa
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See all 7 projectsSovTech is a web development company specializing in Full-Stack Web Development and Custom Website Development. Reviews highlight their effective project management, open communication, and technical expertise, with around 100% positive feedback. Clients appreciate their competency in backend engineering and flexibility, though some suggest improving timeline estimations. Their work includes developing complex web applications and enhancing front-end and backend integrations.
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$25,000+$100 - $149 / hr250 - 999Miami, FL
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See all 17 projectsMultiplica, renowned for Website Development and Web Design, excels in creating custom web solutions and digital branding. The company receives overwhelmingly positive feedback, with about 90% of reviewers praising their professionalism, design skills, and project management. Clients consistently highlight their strong communication and ability to integrate client feedback into their creative process, ensuring a high-quality final product.
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Undisclosed$50 - $99 / hr50 - 249San Francisco, CA
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See all 60 projectsYellow is a versatile web development company offering services such as full-stack web development, custom website development, and web application development. Across their reviews, 100% of clients praised their technical expertise, timely project delivery, and responsive communication. Approximately 80% highlighted Yellow’s ability to integrate seamlessly with in-house teams, while 70% emphasized their commitment to quality and reliability.
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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 Development75% JavaScript50% 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 -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% 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
38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
39.1/40.019.8/20 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
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% 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 -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.5/40.019.6/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% 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 -
$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 -
$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 -
$1,000+< $25 / hr250 - 999Boston, 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 -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.4/40.016.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Web Development45% JavaScript40% 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 -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
38.2/40.018.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$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 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Web Development25% JavaScript80% 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
37.5/40.018.4/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249Chelsea, Australia
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$1,000+< $25 / hr1,000 - 9,999London, England
Ability to deliver
36.5/40.019.2/20 Reviews9.3/10 Clients & Experience8/10 Market PresenceService focus
20% Web Development25% JavaScript80% 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 -
$25,000+$100 - $149 / hr50 - 249Long Beach, CA
Ability to deliver
36.2/40.018.2/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
100% Web Development40% JavaScript
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.