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 91 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development and engineering service provider specializing in full-stack web development and custom website development. The company consistently receives positive feedback, with approximately 95% of reviews highlighting their high-quality developers and management excellence. Clients frequently commend their project management skills and responsiveness, making them a reliable partner for complex web programming and online development projects.
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$10,000+$100 - $149 / hr2 - 9Vancouver, Canada
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See all 3 projectsHammerhead is a web development company specializing in custom website development and web design, offering services such as data migration and full-stack web development. With 100% positive feedback, clients praise their quality work, effective communication, and adherence to quotes. Notably, 33% of reviews highlight their ability to significantly improve website traffic and user engagement.
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$25,000+$25 - $49 / hr50 - 249Seoul, South Korea
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See all 1 projectsMckinley & Rice Inc. is a web development company specializing in custom website development and web application development. The reviews highlight their ability to deliver projects on tight schedules, with 100% of clients expressing satisfaction with their timely delivery and responsiveness. Clients particularly appreciate their commitment to meeting specific client requirements and their effective project management skills.
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Undisclosed< $25 / hr50 - 249London, England
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See all 2 projectsCodelax Creative is a versatile web development company specializing in outsourced product development and engineering services, including full-stack web development and backend systems. The company receives overwhelmingly positive feedback, with clients appreciating their flexibility, collaborative approach, and timely delivery. Approximately 100% of reviewers highlight their adaptability and understanding of startup needs.
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$5,000+$25 - $49 / hr10 - 49Buenos Aires, Argentina
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See all 4 projectsBorea Studio is a web development company specializing in custom website development and web design. They are consistently praised for high-quality design work and their dedication to understanding client visions, though 33% of reviews mention improvements needed in project timelines. Overall, they are recognized for providing good value for cost and personalized service.
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$1,000+$50 - $99 / hr10 - 49Miami, FL
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See all 2 projectsCode 8 is a web development company with expertise in website development, web programming, and custom website development. The company consistently receives positive feedback for its ability to integrate design and development, with approximately 90% of reviews highlighting their strong communication and project management skills. However, some feedback suggests a need for increased proactivity and efficiency in managing workflows.
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$5,000+$50 - $99 / hr2 - 9Zagreb, Croatia
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See all 8 projectsBeap is a web development company specializing in custom website development and full-stack web development. The company is consistently praised for its high-quality work, timely delivery, and strong project management skills, with 100% of reviewers noting their responsiveness and attention to detail. Clients appreciate their ability to integrate seamlessly with existing teams and deliver innovative web applications and websites tailored to client requirements.
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$10,000+$100 - $149 / hr50 - 249Los Angeles, CA
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See all 13 projectsCoding Pixel is a web development company known for its expertise in web application development, custom website development, and full-stack web development. The company has received overwhelmingly positive feedback, with 100% of reviewers highlighting their ability to deliver projects on time, responsiveness, and professional communication. Clients have praised their impressive design skills and the seamless integration of complex functionalities.
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$1,000+< $25 / hr50 - 249
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See all 5 projectsSkyQuest is a versatile digital transformation company specializing in custom software development, e-commerce solutions, and inbound marketing strategies, with a notable emphasis on HubSpot CRM integration and business intelligence platforms. The company has received overwhelmingly positive feedback, with 100% of reviews highlighting their professionalism, effective communication, and transparent project management. Clients consistently praise their responsiveness and ability to deliver projects on time, underscoring SkyQuest's commitment to excellence and client satisfaction.
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$50,000+$50 - $99 / hr10 - 49Timișoara, Romania
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See all 1 projects[e-spres-oh] is a software development company known for integrating seamlessly into existing teams to enhance development velocity, particularly using Ruby on Rails. With 100% positive feedback, clients praise their strategic involvement beyond technical tasks. Their commitment to resolving issues and proactive communication through Slack and other tools is highly appreciated.
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$5,000+Undisclosed10 - 49
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See all 2 projectsAbron Studio is a versatile design agency offering services in video production, branding, web design, and graphic design. They have been praised for their exceptional quality, creativity, and responsiveness, with 100% of reviews noting satisfaction with their work. Clients highlight their ability to deliver high-quality content on time and within budget, making them a reliable partner for creative projects.
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$10,000+$50 - $99 / hr50 - 249Sandnes, Norway
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See all 11 projectsKilowott is a web development company specializing in services such as custom website development, online development, and web application development. The company has received overwhelmingly positive feedback, with nearly 100% of reviewers praising their high-quality work, responsiveness, and adherence to deadlines. Clients consistently commend Kilowott for their clear communication and ability to deliver tailored solutions, enhancing user experience with full-stack web development expertise.
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$25,000+$25 - $49 / hr50 - 249
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See all 2 projectsProfITsoft is a distinguished web development company specializing in Java enterprise solutions, custom website development, and web application development. Their expertise significantly contributed to a client's commercial success, with 100% of reviewers praising their professionalism and on-time delivery. However, 10% noted language proficiency as an area for improvement, although communication remained effective overall.
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$1,000+< $25 / hrFreelancerRajkot, India
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See all 1 projectsVijay Bhatiya is a skilled web development professional specializing in front-end development, known for his expertise in HTML, CSS, and JavaScript. With a focus on custom website development, reviewers appreciate his reliability and adaptability, citing his ability to meet deadlines and provide creative input. His consistent performance is reflected in overwhelmingly positive feedback, with clients valuing his enthusiasm and diligence.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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See all 1 projectsCodevale Technologies is a web development company providing Website Development, Web Design, and digital marketing services. Their clients appreciate their responsive communication and competitive pricing, leading to improved website performance and increased leads. Approximately 100% of reviewers highlight their efficient service and willingness to go the extra mile, with no significant areas for improvement noted.
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$10,000+$25 - $49 / hr50 - 249
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See all 5 projectsIMPERIAL IT Pvt. Ltd. is a prominent web development company excelling in Full-Stack Web Development and Web Application Development. Praised for their professional project management and communication, 100% of reviewers commend their responsiveness and efficiency. Their core strength lies in delivering high-quality, custom web solutions on time, which has significantly satisfied clients across diverse industries.
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$1,000+< $25 / hr2 - 9Bikaner, India
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See all 1 projectsMintoSoft is a web development company specializing in custom website and web application development. They received 100% positive feedback for their effective communication, timely delivery, and professional project management. Their expertise in PHP, MySQL, Unity, and .NET was highlighted, ensuring high-quality results for an online music education platform.
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$5,000+$25 - $49 / hr50 - 249Indore, India
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See all 8 projectsMango IT Solutions is a web development company excelling in full-stack web development, custom website development, and web application development. With a 100% positive feedback rate from clients, they are praised for their exceptional communication, technical expertise, and dedication to client satisfaction. Approximately 80% of reviewers commend their timely delivery and project management skills.
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$1,000+$25 - $49 / hr10 - 49Kraków, Poland
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See all 5 projectsNOGRAVITY is a versatile software development company that excels in creating mobile applications and online platforms. They are highly praised for their honesty, dedication, and customer-centric approach, with reviews indicating a strong focus on client satisfaction and transparency. Approximately 100% of reviewers highlight their responsive communication and timely project delivery, making NOGRAVITY a reliable partner in software development projects.
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$1,000+< $25 / hr2 - 9Surat, India
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See all 3 projectsCodeInfluencer IT Solutions LLP is a web development company specializing in upgrading and rewriting website code, as demonstrated in their work on PHP transitions. According to client feedback, 100% of reviewers highlight effective communication and timely solutions, with no areas for improvement mentioned. Their professional and responsive service ensures seamless website functionality.
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$5,000+$50 - $99 / hr10 - 49
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See all 3 projectsVi Viridis LLC is a web development company specializing in website development and web design. The company receives highly positive feedback, with 100% of reviewers praising their timely delivery and excellent project management skills. Their expertise in custom website development and ongoing support is consistently highlighted, impressing clients with their ability to meet expectations and deliver quality outcomes.
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$5,000+$100 - $149 / hr2 - 9Lake Mary, FL
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See all 11 projectsbuildrrDIGITAL is a web development company that specializes in custom website development, including web programming and online development. The reviews highlight their strong project management, responsive communication, and ability to tailor solutions to clients' needs. Positive feedback constitutes approximately 95% of the reviews, with 80% emphasizing their excellent customer service and personalized approach. Michael, the CEO, is noted for his hands-on involvement and dedication to client satisfaction.
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$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 6 projectsPersonit is a web development company specializing in custom website development and web application development. Overall, 100% of the feedback is positive, highlighting their advanced AI integration and efficient project management. Reviewers consistently commend their creative problem-solving and user-friendly design, with 50% specifically noting the value for the cost.
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$10,000+$25 - $49 / hr50 - 249Rīga, Latvia
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See all 12 projectsDiatom Enterprises is a custom web development company known for its full-stack web development and web application development services. The reviews highlight their professionalism, flexibility, and strong technical skills, with an impressive 100% of feedback being positive regarding their ability to deliver on time and maintain effective communication. Their expertise in integration and architecture documentation is particularly praised.
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$1,000+< $25 / hr10 - 49Madurai, India
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See all 1 projectsTrioangle is a software development company specializing in creating functional on-demand service applications. Client feedback highlights their professionalism, punctual delivery, and user-friendly product design. With 100% positive feedback, clients praise Trioangle's diligence and attention to detail, citing successful project demos and high user satisfaction.
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$10,000+$50 - $99 / hr10 - 49Bratislava, Slovakia
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See all 5 projectsWEZEO is a software development company specializing in web and mobile application development, with expertise in UI/UX design and frontend technologies. Across various reviews, clients have consistently praised their technical proficiency, flexibility, and project management skills, with approximately 90% expressing satisfaction with their deliverables. However, some feedback suggests a need for improved alignment on project goals and expectations.
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$10,000+$25 - $49 / hr10 - 49T'bilisi, Georgia
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See all 2 projectsSyfec is a development company specializing in enhancing application architecture and developing platform features. Overall feedback is positive, with reviewers highlighting effective communication and project management. Approximately 100% of clients were impressed by the company's adaptability and expertise, while acknowledging room for improvement.
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$10,000+$25 - $49 / hr10 - 49Bengaluru, India
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See all 1 projectsDigiapt is a web development company known for its expertise in Angular web development, offering comprehensive services such as wireframes and software design. Approximately 100% of the reviewers highlight their ability to ideate frameworks and manage ambiguity effectively. Positive feedback is prevalent, though some mention the need for improved feature prioritization.
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$25,000+$100 - $149 / hr2 - 9Brooklyn, NY
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See all 1 projectsSein Analytics is a design firm specializing in logo creation, web design, and enhancing campaign usability. The company is highly recommended for its excellent communication and responsiveness, with 100% positive feedback. Clients appreciate their collaborative approach, likening the experience to working with a colleague rather than a vendor.
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$25,000+$50 - $99 / hr10 - 49Maslak, Türkiye
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See all 14 projectsMobilist specializes in Website Development and Web Design, providing comprehensive online development services. Client feedback highlights their longstanding reliability and effective project management, particularly noting their accessibility and satisfaction with deliverables. However, there is a suggestion for increased staffing to potentially enhance service efficiency.
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$1,000+< $25 / hr2 - 9Jaipur, India
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See all 15 projectsAdclickr is a web development company specializing in custom website development, full-stack web development, and SEO services. The reviews reflect 100% positive feedback, emphasizing their professional project management, responsiveness, and ability to align websites with client visions. Clients particularly appreciate Adclickr's seamless integration of functionality and creativity, leading to enhanced online presence and engagement.
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$100,000+$25 - $49 / hr50 - 249Cluj-Napoca, Romania
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See all 1 projectsBitStone is a proficient web development company known for its expertise in Custom Website Development and Full-Stack Web Development. Clients consistently praise their professionalism and adaptability, with 100% mentioning their impressive work ethic. However, some reviews suggest improvements in cost management by optimizing team processes.
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$25,000+$150 - $199 / hr2 - 9Seattle, WA
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See all 1 projectsNorthwest Independent Ruby Development specializes in Web Development and has demonstrated expertise in Custom Website Development and Web Application Development, particularly with HIPAA-compliant programs. According to feedback, 100% of reviewers commend their effective project management and ability to communicate complex technical issues clearly, enhancing administrative support and stability for their clients' programs.
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$5,000+$25 - $49 / hr10 - 49Thane, India
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See all 9 projectsRedSoft Solutions Pvt. Ltd. is a web development company specializing in full-stack development, offering services such as front-end and back-end development, web design, and web application development. With 100% positive feedback, clients commend their exceptional communication, project management skills, and commitment to understanding project needs. Approximately 75% of reviewers emphasize their capability to handle both front-end and back-end tasks effectively.
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$5,000+< $25 / hr10 - 49
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See all 6 projectsNomads is a web development company recognized for its commitment to timely delivery and quality service. With 100% positive feedback, reviewers highlight their expertise in web design and development, with impressive project management and problem-solving capabilities. Clients suggest expanding their service offerings to provide comprehensive IT solutions.
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$10,000+$150 - $199 / hr10 - 49South Melbourne, Australia
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See all 2 projectsStudio Moso is a web development company specializing in Website Development and Web Design. They received positive feedback for their creative and design skills, delivering projects on time and within budget. Approximately 100% of reviewers appreciated their flexibility and competitiveness in pricing, though there were suggestions for expanding their digital marketing services.
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$5,000+$25 - $49 / hr10 - 49
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See all 3 projectsJuzzzt Studio is a web development company specializing in full-cycle web design and development, including front-end and back-end development, as well as website optimization. Approximately 100% of the reviews highlight their exceptional project management and communication skills, with clients appreciating their timely delivery and deep understanding of client needs.
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$25,000+$100 - $149 / hr2 - 9New York, NY
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See all 2 projectsBLUEPORTAL, LLC is a web and software development company highly praised for its professionalism, attention to detail, and efficient project management. With 100% positive feedback, clients highlight their ability to deliver high-quality, user-friendly websites and effective backend solutions, resulting in enhanced online presence and increased client engagement. Reviewers commend their responsiveness, clear communication, and the seamless integration of automated features.
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Undisclosed$25 - $49 / hr2 - 9Chybie, Poland
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See all 1 projects2Qbs is a company specializing in Website Development and Web Application Development, providing custom solutions for businesses. Their ability to create a new website and a custom application for managing air conditioning installations received 100% positive feedback. Clients appreciate their expertise, effective communication, and the impactful results of increased web traffic and enhanced operational efficiency.
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$5,000+$50 - $99 / hr50 - 249Hamden, CT
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See all 14 projectsShamlatech is a web development company specializing in custom website development, offering responsive web design and enhanced user experiences. Across reviews, 100% of clients praised their excellent project management and responsiveness, with improvements in user engagement and website performance noted by all. Their attention to detail and ability to translate client visions consistently stood out.
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$5,000+$100 - $149 / hr10 - 49Toronto, Canada
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See all 5 projectsLeverage IT is a comprehensive technology partner offering mobile app and web development, UI/UX design, and digital marketing services. Their clients commend them for consistent delivery, professionalism, and the ability to adapt to client needs, with approximately 80% of reviews highlighting their exceptional communication and project management. The firm is particularly noted for its capacity to produce high-quality results efficiently, even on limited budgets.
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$5,000+$25 - $49 / hr50 - 249Ikeja, Nigeria
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See all 3 projectsTanta Innovative is a web development company praised for its expertise in website development and online visibility enhancement. With a 100% positive review rate, clients commend their effective communication, collaborative spirit, and timely delivery. They successfully modernized a complex website, significantly increasing sales and enhancing online user navigation and accessibility.
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$10,000+$25 - $49 / hr10 - 49Sheridan, WY
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See all 5 projectsUniDevs is a full-stack web development company specializing in custom website development and web application development. Their services are highly rated, with 80% of users expressing satisfaction with their platforms. Clients particularly highlight their collaborative approach and timely delivery, making them a reliable choice for web programming and online development needs.
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$25,000+$100 - $149 / hr10 - 49Montréal, Canada
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See all 2 projectsnoesis digital is a technology solutions provider specializing in custom software development and platform architecture. Based on reviews, 100% of clients express satisfaction with their expertise, reliability, and effective communication. Their ability to understand client needs and deliver scalable, cloud-based solutions has been consistently praised, making them a highly recommended partner for tech-driven projects.
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$5,000+$25 - $49 / hr50 - 249Vadodara, India
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See all 3 projectsAtyantik Technologies Private Limited is a full-stack web development company known for its expertise in custom website development and web application development. With 100% positive feedback, clients commend their professional project management, timely delivery, and collaborative approach, treating projects as their own. Atyantik's work fosters innovation and continuous improvement, notably impressing clients with their engagement and efficiency.
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$10,000+$25 - $49 / hr50 - 249Lalitpur, Nepal
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See all 2 projectsRara Labs is a software development company specializing in creating custom business solutions, such as data reconciliation and cloud-based accounting systems. Their work is characterized by strong project management, timely delivery, and effective customer communication. Feedback is predominantly positive, with clients highlighting the team's expertise and dedication, although there is a suggestion to enhance documentation.
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$1,000+$25 - $49 / hr2 - 9Wrocław, Poland
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See all 2 projectsTigriWeb is a full-stack web development company known for its technical expertise and client-centered approach. All reviewers commend their ability to deliver visually appealing, intuitive, and functional websites, with 100% positive feedback highlighting their project management and flexibility. They excel in increasing website traffic, user engagement, and conversion rates.
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$1,000+< $25 / hr10 - 49Bhopal, India
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See all 5 projectsAntops Technologies is a web development company specializing in custom website development, including web design and full-stack web development. Reviews highlight their excellent communication, timely delivery, and effective project management, with 100% of clients expressing satisfaction. Clients appreciate their adaptability and the professional demeanor of the team, especially noting their patience and professionalism in interactions.
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$5,000+$50 - $99 / hr10 - 49Limassol, Cyprus
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See all 7 projectsANRO IT is a full-stack software development company renowned for its expertise in backend development, code refactoring, and system optimization. Consistently praised for their organized and responsive project management, 100% of reviews highlight their ability to enhance system performance and stability. Clients appreciate their proactive problem-solving approach, with 60% noting the added value from ANRO IT's unique solutions and system improvements.
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$5,000+$50 - $99 / hr10 - 49
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See all 12 projectsGolpik is a web development company offering comprehensive services including website development, web application development, and custom website development. The company is highly praised for its responsiveness and professionalism, with 100% of reviews highlighting their effective communication and project management skills. Approximately 80% of reviewers commend the company's ability to deliver high-quality results aligned with client expectations.
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$25,000+$25 - $49 / hr10 - 49Ljubljana, Slovenia
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See all 2 projectsGrabIT is a web development company praised for its exceptional skills in full-stack web development and DevOps. With 100% positive feedback, reviewers commend their problem-solving abilities, quick understanding of project architecture, and seamless integration into existing teams. Their expertise in JavaScript and AWS deployment has notably impressed clients, leading to expanded project scopes.
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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
60% Web Development50% JavaScript40% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.7/40.018.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% 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+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Web Development40% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
38.7/40.019.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development90% JavaScript50% Other -
$10,000+$50 - $99 / hr50 - 249Amsterdam, Netherlands
Ability to deliver
39.1/40.019.8/20 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 - 249Warszawa, Poland
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% 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 -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.2/40.019.2/20 Reviews10/10 Clients & Experience10/10 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 -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development15% JavaScript70% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$10,000+$25 - $49 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Web Development50% JavaScript80% 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 -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.1/40.016.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.1/40.018.2/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+$50 - $99 / hr10 - 49Covina, CA
Ability to deliver
37.5/40.017.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
55% Web Development80% JavaScript45% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.3/40.018.8/20 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
36.5/40.016.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
45% Web Development10% JavaScript55% Other -
$25,000+$50 - $99 / hr50 - 249L'viv, Ukraine
Ability to deliver
39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Web Development40% JavaScript70% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.1/40.016.2/20 Reviews10/10 Clients & Experience9.9/10 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 -
$25,000+$50 - $99 / hr10 - 49Wrocław, Poland
Ability to deliver
38.1/40.018.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development70% JavaScript60% 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.