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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$1,000+< $25 / hr10 - 49Addis Ababa, Ethiopia
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See all 1 projectsQemer Software Technology PLC is a software development company that specializes in creating HR management systems and providing comprehensive technical support. The feedback from their clients is overwhelmingly positive, with 100% of reviewers praising their project management, timely delivery, and the quality of their software solutions. Clients appreciate their ability to provide complete packages and their motivated, friendly team.
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Undisclosed$25 - $49 / hr2 - 9
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See all 2 projectsTequila Web is a web development company specializing in custom website development and web application development. The reviews highlight their exceptional communication and seamless integration with client teams, with 100% of feedback being positive. Clients appreciate their ability to exceed expectations and deliver projects according to specified designs and timelines.
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$1,000+$50 - $99 / hr2 - 9Rönninge, Sweden
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See all 1 projectsNexTek is a web development company specializing in creating custom, non-WordPress websites. Reviewers consistently praise their professional approach, effective communication, and impactful results, with 100% positive feedback highlighting their ability to develop easy-to-update sites. Their commitment to delivering tailored solutions enhances client connectivity and satisfaction.
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$10,000+$25 - $49 / hr50 - 249Thiruvananthapuram, India
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See all 6 projectsPerfomatix Solutions is a Web Development company specializing in Web Application Development and Full-Stack Web Development. The reviews indicate a high level of satisfaction, with 100% of clients appreciating their project management skills and responsiveness. Clients commend their customer-oriented approach and ability to adapt to client needs, despite some geographical constraints and language challenges.
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$1,000+$25 - $49 / hr10 - 49Northampton , England
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See all 13 projectsGENESIS ALGORITHMS is a web development company specializing in full-stack web development, web design, and online development services. The reviews highlight their excellent project management, creativity, and ability to deliver results on time and within budget. Approximately 100% of reviewers express satisfaction with their services, emphasizing their professionalism and impressive team, particularly noting the expertise of their CEO, Virgil.
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$10,000+$25 - $49 / hr10 - 49Rzeszów, Poland
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See all 7 projectsMoonbite is a professional web development company specializing in custom website development and full-stack web development. Reviews highlight their professionalism, timely delivery, and effective communication, with 100% of clients appreciating Moonbite's ability to meet objectives and enhance online presence. Many reviewers commend their responsiveness and strategic insights, with over 80% noting significant improvements in web traffic and lead generation.
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$25,000+$50 - $99 / hr10 - 49Budapest, Hungary
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See all 3 projectsGreenformatics Solutions Ltd. is a versatile web development company specializing in custom website development and full-stack web development services. The company is praised for its enthusiastic attitude and flexibility, with 100% positive feedback highlighting their impressive problem-solving capabilities and seamless project management. Approximately 50% of reviewers specifically commend their communication and adaptability to client needs.
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$10,000+$25 - $49 / hr10 - 49Prague, Czech Republic
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See all 10 projectsPinely International is a dynamic web development company specializing in custom website development, web programming, and full-stack web development. They have received high praise for their project management, responsiveness, and ability to deliver on promises, with 100% of reviewers noting their excellent communication and adaptability. The company is recognized for its dedication to elevating client visions and achieving significant milestones in digital transformation.
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$5,000+$25 - $49 / hr10 - 49
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See all 10 projectsDigers! is a versatile web development company specializing in full-stack web development, web programming, and web application development. Reviews indicate strong communication, timely delivery, and innovative problem-solving, with 100% of clients noting their proactive and responsive approach. Clients appreciate their ability to integrate seamlessly into teams and the quality of their technical execution.
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$5,000+$25 - $49 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 4 projectsShine Dezign Infonet is a web development company known for designing and advising on WordPress websites. Clients praise their effective project management, as evidenced by a 30% sales increase. Reviewers consistently highlight their design and development expertise, with 100% positive feedback.
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$10,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 12 projectsTrendLine is a full-stack web development company specializing in building custom web platforms. They have received overwhelmingly positive feedback, with 100% of reviewers highlighting their proactive approach and effective communication. Their team efficiently developed a news platform with complex integrations, emphasizing their expertise in web application development and project management.
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$5,000+$25 - $49 / hr10 - 49Surat, India
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See all 5 projectsInventam Tech Solution OPC Pvt. Ltd is a distinguished web development company specializing in full-stack web development, including both front-end and back-end solutions. With 100% positive feedback, clients commend their reliable delivery of robust and clean features, efficient project management, and impressive work quality and speed.
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$1,000+$25 - $49 / hr10 - 49Orlando, FL
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See all 2 projectsLogozila is a marketing services company specializing in logo creation, marketing strategies, and content development for websites, postcards, and business cards. Clients appreciate their professionalism, responsiveness, and unique approach, with 100% of reviewers expressing positive feedback. However, there is a suggestion for more reasonable pricing for multiple projects.
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$1,000+$150 - $199 / hr2 - 9
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See all 2 projectsX Technologies is a web development company known for its expertise in website and app maintenance. Clients consistently commend their excellent project management and timely deliverables. Notably, 100% of reviewers highlight their responsiveness and value for cost, making them a reliable partner for full-stack web development needs.
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$10,000+$25 - $49 / hr50 - 249Warszawa, Poland
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See all 4 projectsBunch Consulting is a web development company specializing in custom web and full-stack development services. The feedback from their clients highlights a high level of satisfaction, with 100% of reviewers noting their impressive collaboration style and responsiveness to client needs. They effectively employ technologies like React, Typescript, and Node to meet project goals and timelines.
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$1,000+< $25 / hr10 - 49
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See all 3 projectsGiveTurn is a web development company specializing in custom Website Development, e-commerce solutions, and full-stack web development. Reviews highlight their excellent project management, responsiveness, and client-focused approach. They have delivered user-friendly, high-performance websites with SEO optimization, resulting in significant improvements for clients such as increased sales and enhanced online visibility. Approximately 100% of the feedback is positive, emphasizing seamless communications and attention to detail.
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$10,000+$25 - $49 / hr10 - 49Warszawa, Poland
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See all 8 projectsPrognetics is a web development company specializing in custom website development, particularly in building user-friendly platforms. The overall feedback is overwhelmingly positive, with 100% of reviewers expressing satisfaction, highlighting the team's flexibility, professionalism, and quick learning ability in both front-end and back-end development.
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$5,000+< $25 / hr10 - 49Kharkiv, Ukraine
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See all 6 projectsTSN-Media is a versatile web development company specializing in custom website development, full-stack web development, and web application development. Reviews highlight their strong communication and professional approach, with 100% positive feedback on project management and delivery. Clients commend their ability to meet tight timelines and budget constraints while maintaining high-quality outputs.
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$1,000+$100 - $149 / hr2 - 9
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See all 4 projectsINVESMITH is a web development company specializing in custom website development and web design, often praised for its professionalism and responsiveness. Across reviews, clients commend INVESMITH for their effective project management and ability to implement user-friendly features, with 100% of feedback being positive. Approximately 67% of reviewers highlight the company's flexibility and patience in accommodating client needs and preferences.
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$25,000+$50 - $99 / hr50 - 249Iași, Romania
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See all 1 projectsHeaven Solutions is a cloud infrastructure optimization and custom software solutions provider specializing in streamlining delivery systems for businesses like streaming services. With a decade-long partnership and over $200,000 invested, 100% of feedback highlights their exceptional project management and professionalism. However, some suggest considering more competitive pricing.
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$10,000+Undisclosed50 - 249Sydney, Australia
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See all 1 projectsXAM is a software development company specializing in mobile app development, particularly utilizing Xamarin architecture. The company receives overwhelmingly positive feedback, with clients praising their comprehensive skillset and effective project management. Approximately 80% of reviewers highlight XAM's ability to deliver functional solutions that align with customer preferences, emphasizing their flexibility and resourcefulness in handling complex development processes.
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$1,000+$100 - $149 / hr2 - 9
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See all 3 projectsFairhead Creative is a digital marketing and design agency specializing in enhancing brand messaging, web design, and user experience. With a 100% positive feedback rate from clients, Fairhead Creative is praised for their high-quality work, effective communication, and organized processes, resulting in improved conversion rates and reduced bounce rates for their clients.
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$5,000+$25 - $49 / hr2 - 9Warszawa, Poland
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See all 3 projectsDev2Code is a proficient web development company specializing in custom website and web application development, employing technologies like WordPress, Laravel, and Symfony. The reviews reflect strong client satisfaction, with 100% positive feedback highlighting their responsiveness, effective project management, and innovative solutions. Clients particularly appreciate their pleasant team and ability to handle complex projects efficiently.
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$5,000+$100 - $149 / hr2 - 9Denver, CO
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See all 1 projectsReady Fire Digital is a digital agency specializing in Shopify website development, SEO services, and video content creation. Feedback indicates a high level of client satisfaction, with 100% of reviewers praising their ability to adapt to unique brands and their proactive communication. Collaborations are noted for their creativity and timeliness, ensuring a seamless process for ongoing projects.
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$5,000+$100 - $149 / hr2 - 9
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See all 10 projectsColour And Code is a web development company offering services in website design, custom website development, and SEO optimization. Consistently praised for their creativity, strategic approach, and responsive communication, 100% of clients report positive feedback. Their work excels in enhancing online presence and user engagement, with noticeable improvements in website traffic and client satisfaction.
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$1,000+$25 - $49 / hr10 - 49Kharkiv, Ukraine
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See all 3 projectsPerfectorium is a web development company specializing in Web Design and Full-Stack Web Development. Their reviews highlight strengths in WordPress web design and effective front-end and back-end integration. While 100% of reviewers appreciate their responsiveness and efforts to deliver on time, some minor details occasionally go unnoticed.
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$1,000+< $25 / hr10 - 49
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See all 7 projectsAgilsys Software Labs Pvt. Ltd. is a web development company specializing in custom website development and full-stack web development services. Generally receiving high praise, they are noted for their technical expertise, timely delivery, and communication. 100% of reviewers were impressed by their cost-effectiveness and ability to align with project needs, while 40% specifically highlighted their innovative approach to problem-solving.
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$5,000+$25 - $49 / hr2 - 9Białystok, Poland
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See all 2 projectsGamarTech is a European-based web development company specializing in full-stack web development, web application development, and custom website development. Their reviews indicate a 100% satisfaction rate, highlighting their ability to meet key project milestones on time while offering excellent value and top-class results. Clients particularly appreciate their cultural fit and responsive project management.
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$10,000+$25 - $49 / hr10 - 49Quesada, Costa Rica
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See all 5 projectsNativo is a web development company specializing in custom website development and maintenance, particularly for Magento platforms. The company receives overwhelmingly positive feedback, with 100% of reviewers highlighting their effective communication and problem-solving skills. Clients commend Nativo for their ability to address critical vulnerabilities and implement necessary updates promptly.
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$10,000+$25 - $49 / hr50 - 249London, England
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See all 2 projectsDevbox Technologies offers Website Development and Web Design services with a focus on professional website creation, theme customization, logo design, and payment integrations. The overall feedback highlights their excellent work quality, timely delivery, and impressive communication, making them a reliable choice for web development projects.
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$10,000+$25 - $49 / hr250 - 999New York, NY
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See all 11 projectsKiwiTech is a versatile company specializing in web development and full-stack web development services. Across various reviews, clients praise their expertise in UI/UX and web design, with approximately 75% highlighting their professionalism and commitment. While project management is generally satisfactory, areas for improvement include better resource management and communication post-project.
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$1,000+$100 - $149 / hr2 - 9
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See all 3 projectsPixel Hero is a Web Development company known for its expertise in Web Design and Custom Website Development. With 100% positive feedback, clients praise their efficiency, problem-solving skills, and continuous support. Approximately 50% of reviewers highlight their impressive communication and project management abilities, affirming Pixel Hero's commitment to client satisfaction and long-term partnerships.
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$1,000+$25 - $49 / hr10 - 49Anand, India
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See all 1 projectsHi-Lab Solution is a web development company specializing in custom website development, web design, and brand identity services. Their reviews highlight impressive creativity, unique web concepts, and satisfactory outcomes, with 100% positive feedback on their ability to exceed expectations and generate inquiries through the website.
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$1,000+$25 - $49 / hr10 - 49Ludhiana, India
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See all 2 projectsSJ Solutions & Infotech offers Website Development services, primarily focusing on Web Design and Web Programming. Their reviews highlight effective project management, timely delivery, and significant reductions in data entry errors. Clients appreciate their collaborative approach and the direct access to their team, enhancing communication and ensuring project success.
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$1,000+< $25 / hr50 - 249Kolkata, India
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See all 2 projectsA1 Future Technologies Pvt. Ltd. is a web development company specializing in custom website development and web design. Based on client feedback, 100% of reviewers report satisfaction with their responsive project management and effective online development solutions, highlighting cost-effectiveness and excellent customer service as key strengths.
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$1,000+$25 - $49 / hr2 - 9Kraków, Poland
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See all 10 projectshauerpower is a web development company offering services such as full-stack web development, custom website development, and web programming. Across their reviews, 80% of clients highlight their effective communication and professional project management. Many clients appreciate their adaptability and patience, with 60% noting impressive responsiveness and design execution, although some mention challenges with backend intuitiveness post-project completion.
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$10,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 1 projectsKalion.Digital (ex.Monochrome) is a development company specializing in creating interfaces for learning management systems. The feedback highlights their strong problem-solving skills and effective collaboration, with approximately 100% of the reviews being positive. Clients appreciate their user-friendly designs and the team's capacity to adapt and expand their knowledge in new areas.
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$1,000+$25 - $49 / hr2 - 9
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See all 7 projectsNextG is a web development company specializing in custom website development, full-stack web development, and web application development. With consistently positive feedback, 100% of reviewers commend their responsiveness and adaptability. Clients appreciate NextG's ability to deliver on time, their attention to detail, and seamless integration of new features, enhancing both design and functionality across various platforms.
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$10,000+$50 - $99 / hr10 - 49Encinitas, CA
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See all 1 projectsApp Design Company is a development firm specializing in application design, branding, and software development for both iOS and Android platforms. Overall feedback is overwhelmingly positive, emphasizing the company's flexibility, industry knowledge, and strong project management. Impressively, 100% of users continued using their platform after a free trial, highlighting its user-friendliness and effectiveness.
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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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$10,000+$50 - $99 / hr2 - 9Rotterdam, Netherlands
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See all 2 projectsStudio Ollala is a design and development company specializing in user experience (UX) research, UI design, and application development. The company is highly commended for its effective communication and deep understanding of complex products, with 100% positive feedback highlighting their attention to detail and user-friendly designs. Reviewers particularly appreciate their ability to re-define value propositions and create intuitive, component-based design systems.
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$25,000+$50 - $99 / hr10 - 49
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See all 6 projectsMobius Team Ltd is a web development company specializing in solutions involving API and Laravel for data synchronization and exploitation. Reviews highlight their adaptability and rapid response times, with 100% of feedback noting successful project delivery. Some clients suggest improvements in dashboard interface design, achieved after collaboration.
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$10,000+$50 - $99 / hr10 - 49
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See all 5 projectsWiseUp is a versatile technology company specializing in web development, application updates, and feature integration for diverse sectors, such as marketing, consulting, and conservation. The reviews reflect an overwhelmingly positive sentiment, with nearly all feedback highlighting WiseUp's professionalism, technical expertise, and effective communication. Notably, 100% of reviewers praised their project management abilities and the ability to deliver on time, fostering strong client relationships.
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$5,000+$25 - $49 / hr10 - 49
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See all 2 projectsWizy Vietnam is a web development company specializing in full-stack web development and web application development. Reviews highlight their reliability and ability to deliver quality web design and development at reasonable prices. With 100% positive feedback regarding project management and resource flexibility, they excel in Agile processes and can quickly provide additional development resources.
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$1,000+$25 - $49 / hr10 - 49L'viv, Ukraine
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See all 3 projectsDevRecords is a full-stack web development company that excels in delivering reliable, scalable, and modular solutions. With 100% positive feedback, clients praise their sense of duty, creativity, and effective project management. Their approach makes them feel like an in-house team, consistently providing high-quality service and proposing innovative alternatives.
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$10,000+$25 - $49 / hr50 - 249
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See all 2 projectsSyoft is a technology solutions provider specializing in web and mobile application development, offering services such as telehealth platforms and ERP systems. Reviews highlight their impressive technical proficiency and effective project management, with 100% positive feedback on their communication and ability to understand client needs. Clients appreciate their responsiveness and innovation in delivering tailored solutions.
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$1,000+$50 - $99 / hr10 - 49
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See all 3 projectsRank SEO Agency is an SEO agency known for its professionalism and industry knowledge. With a team of 6-10 employees, they effectively manage client expectations and communication, leading to increased online visibility. The agency receives overwhelmingly positive feedback for their diligence and smooth project execution, with no significant areas for improvement noted.
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$10,000+$50 - $99 / hr2 - 9Lukavica, Bosnia and Herzegovina
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See all 1 projectsRecursion is a technology firm specializing in custom web application development and AWS infrastructure establishment. Their services demonstrate a high level of organization, transparency, and responsiveness, consistently delivering projects ahead of schedule. Reviewers commend Recursion's exceptional project management and quality of work, with 100% positive feedback and no noted areas for improvement.
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$1,000+$25 - $49 / hr10 - 49Surat, India
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See all 5 projectsGeek Web Solution is a web development company specializing in full-stack web development, web design, and custom website development. Reviews highlight their exceptional technical precision, timely project delivery, and responsive communication. Impressively, 100% of customers reported satisfaction with their development work, citing seamless project management and flawless design execution as key strengths.
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$5,000+$50 - $99 / hr2 - 9Bali, Indonesia
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See all 2 projectsSandikala Studio is a distinguished web development company, excelling in custom website development and full-stack web development services. The studio receives overwhelmingly positive feedback, with notable commendation for their proactive research initiatives and effective communication, as mentioned by 100% of reviewers. Their commitment to understanding client needs and delivering timely, tailored solutions is frequently highlighted as a key strength.
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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.