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 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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$1,000+< $25 / hr10 - 49Dubai, United Arab Emirates
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See all 5 projectsWisdom Information Technology Solutions is a full-service web development company specializing in custom website development, web design, and SEO. With a 100% positive feedback rate, clients praise their dedication, fast communication, and ability to enhance web presence and conversions. The team is noted for their professionalism, managing to increase conversion rates by up to 35% and significantly improving page load speeds.
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$5,000+$25 - $49 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 2 projectsImmanent Solutions is a fintech development company specializing in mobile and web applications, blockchain solutions, and smart contracts. They receive overwhelmingly positive feedback, with 100% of reviewers praising their project management, timely delivery, and responsiveness. Clients highlight their dedication to meeting requirements and their consistent team, with no significant areas for improvement mentioned.
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$1,000+Undisclosed10 - 49
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See all 4 projectsThe Projekt is a versatile company specializing in Custom Website Development, Web Design, and Full-Stack Web Development. They consistently deliver high-quality projects, as reflected in their 100% positive feedback. Clients praise their prompt delivery, strong alignment with business needs, and excellent value for cost, suggesting they may even undercharge for their extensive services.
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$1,000+$25 - $49 / hr2 - 9L'viv, Ukraine
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See all 3 projectsChunkup is a web development company specializing in frontend development, branding, and UI design. They have received 100% positive feedback for their agile project management and high-quality deliverables, with clients praising their professionalism and efficiency. Their team is noted for excellent communication and timely delivery, making them a reliable partner for custom website development projects.
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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsSaint Boss is a web development company specializing in custom website development and web design, as evidenced by their creation of a virtual pitch deck in the form of a responsive WordPress website. Feedback highlights their impressive speed and quality of work, with 100% of reviewers noting timely delivery and responsiveness.
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$1,000+$50 - $99 / hr10 - 49Houston, TX
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See all 6 projectsUnited Developers is a web development company providing services such as custom website development and web programming. They are praised for their speed, professionalism, and effective communication, with 100% positive feedback highlighting their responsiveness and reliability. The company is noted for quickly resolving technical issues, as reflected in their ability to fix a client's request in less than an hour.
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$10,000+$25 - $49 / hr10 - 49
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See all 4 projectsboto is a web development company specializing in backend solutions, CRM systems, and custom website development. They have consistently delivered efficient software on time, earning a 100% positive feedback rate. Clients emphasize their punctuality and effective communication, particularly using platforms like Telegram and Zoom.
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$5,000+$50 - $99 / hr10 - 49
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See all 1 projectsRendream LLC is a web development company specializing in Custom Website Development and Full-Stack Web Development. Reviews highlight their strong technical skills, effective communication, and cost-effectiveness, resulting in 100% positive feedback. Clients praise their ability to deliver projects on time, with zero downtime and a seamless user experience.
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$10,000+$25 - $49 / hr10 - 49Warszawa, Poland
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See all 13 projectsITSharkz is a web development company that provides comprehensive services including Website Development, Front-End Development, and Back-End Development, as well as custom web solutions involving smart contracts and SEO optimization. With 100% positive feedback, clients praise their technical quality, responsiveness, and ability to align with company values. Many reviews note their excellent project management and communication, with 85% highlighting their impressive adaptability and support.
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$5,000+$25 - $49 / hr10 - 49Kharkiv, Ukraine
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See all 6 projectsDesign and Test Lab is a software development company specializing in mobile app development, UI/UX design, and QA testing. They consistently receive positive feedback for their professionalism, adaptability, and high-quality solutions, with approximately 100% of clients highlighting their effective communication and workflow. Reviewers commend their technical expertise and ability to deliver on time, with no significant negative feedback reported.
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$5,000+$25 - $49 / hr10 - 49Pune, India
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See all 3 projectsHamsa Hitech is a full-stack web development company specializing in website development, web design, and mobile app creation, with strong expertise in UX design. The company receives overwhelmingly positive feedback, with clients praising their effective communication, timely project delivery, and significant contribution to achieving business goals, as highlighted by 100% of reviewers.
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$10,000+$150 - $199 / hr2 - 9Olympia, WA
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See all 1 projectsTilladelse Marketing Agency is a web development and marketing firm that specializes in website development, social media marketing, and SEO services. All feedback from their clients is positive, with 100% of reviewers praising their professionalism, honesty, and project management skills. Their expertise in WordPress and front-end development is particularly notable.
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$5,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 6 projectsCherry Byte Technologies is a web development company specializing in full-stack and custom software development, with a strong emphasis on back-end and front-end solutions. Their reviews highlight consistent on-time delivery and responsive project management, resulting in positive user engagement. Approximately 90% of reviewers praise their cost-effective services and technical expertise, noting a need for enhanced UI/UX design capabilities.
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$5,000+$25 - $49 / hr10 - 49Sibiu, Romania
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See all 10 projectsPixel Solutions is a web development company specializing in custom website development, web design, and online development. With a 100% positive feedback rate, clients commend their effective project management, adaptability, and cultural fit. They excel in full-stack web development and have been praised for enhancing web presence and customizing web solutions quickly while maintaining excellent communication and dedication.
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$1,000+< $25 / hr10 - 49Rajkot, India
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See all 5 projectsCiesto solutions is a web development company specializing in custom website development and web design. The overall feedback from clients is overwhelmingly positive, with 100% of reviewers highlighting their impressive customer service, flexibility, and timely delivery. Ciesto solutions effectively handles complex projects and accommodates change requests, ensuring client satisfaction.
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$1,000+$50 - $99 / hr2 - 9
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See all 6 projectsahyoxsoft is a proficient web development company specializing in backend development, web programming, and custom website development. Client reviews highlight their excellent project management skills and commitment to timely delivery, with 100% of reviewers emphasizing their effective communication and transparency. The company is praised for the stability and quality of their work, and 100% of reviewers recommend them for their innovative solutions and responsiveness.
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$25,000+$50 - $99 / hr2 - 9Santa Monica, CA
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See all 2 projectsRight Balance is a mobile app development company with expertise in hardware integration and API development. Across their reviews, clients consistently praise their technical proficiency, seamless workflows, and successful project outcomes. Satisfaction with their work is notably high, with no negative feedback or suggested areas for improvement mentioned by reviewers.
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$50,000+$25 - $49 / hr50 - 249Kochi, India
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See all 9 projectsDexlock is a versatile web development company specializing in Custom Website Development, Full-Stack Web Development, and Web Application Development. The reviews indicate a positive experience for 100% of clients, emphasizing their professionalism, specialized skills, and consultative approach. While some minor areas for improvement were noted, such as delivery times and quality assurance processes, clients appreciated Dexlock's commitment to project goals and innovative problem-solving.
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$5,000+$100 - $149 / hr10 - 49Denver, CO
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See all 8 projectsPneuma Media is a web development company offering services such as website development, SEO, and custom website design. The reviews indicate a high level of client satisfaction, with over 90% positive feedback. Clients commend their professionalism, strong communication, and effective project management, though there is occasional feedback on initial setup delays.
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$1,000+$25 - $49 / hr2 - 9Noida, India
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See all 2 projectsNirvaat Internet Private Limited is a web development company known for its professional and responsive service. Positive feedback highlights their expertise in delivering projects on time with strong post-launch support, as evidenced by 100% satisfaction in meeting client requirements and timelines. Reviewers unanimously praise their professionalism and responsiveness, with no areas for improvement mentioned.
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$1,000+< $25 / hr2 - 9
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See all 2 projectsKico Web Design is a professional web development company specializing in full-stack web development and custom website development. Reviews highlight their ability to deliver visually appealing, high-performing websites, with 100% of feedback emphasizing their excellent project management, responsiveness, and client-focused approach. Clients report significant business growth, including a 45% increase in organic traffic and a 35% rise in lead generation.
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$10,000+$25 - $49 / hr2 - 9Plovdiv, Bulgaria
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See all 3 projectsGopchi is a company specializing in Web Development, particularly in creating custom mobile applications and supporting website development. The feedback is overwhelmingly positive, with 100% of reviewers appreciating their effective communication and advisory capabilities. They are noted for their client-focused approach and timely project delivery, achieving significant user engagement shortly after project completion.
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$10,000+$25 - $49 / hr50 - 249New York, NY
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See all 2 projectsMatrix Marketers is a web development company specializing in front-end and back-end development, PHP coding, and database integration. Their reviews highlight a reliable and always available team, with 100% of clients appreciating their project management skills and ability to integrate seamlessly. Some clients note time zone challenges, but overall feedback is overwhelmingly positive.
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$1,000+< $25 / hr10 - 49Pimpri-Chinchwad, India
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See all 10 projectsSimpliSage Technologies Pvt Ltd is a web development company specializing in full-stack web development, including front-end development with React and back-end development with Node.js. The company is praised for its professionalism, efficiency, and trustworthiness, with 100% of reviewers highlighting their quality of work and consistent performance. Clients appreciate their flexibility and dedication, although some suggest improvements in project management oversight.
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$1,000+< $25 / hr2 - 9Kochi, India
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See all 3 projectsClassyServe Technologies Pvt Ltd. is a web development company specializing in custom web application development, with a focus on user-friendly experiences across both desktop and mobile platforms. Feedback highlights their excellent client collaboration, responsiveness, and ability to deliver a product meeting client requirements; however, minor backend organization improvements are suggested. Overall, their commitment to startups and delivering high-quality products is highly regarded by clients.
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$25,000+$150 - $199 / hr10 - 49Montréal, Canada
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See all 4 projectsTrinary is a web development company specializing in custom website development and web application development. They are praised for their efficient project management and responsiveness, with 100% of reviewers noting their seamless communication and understanding of complex technological environments. Clients highlight Trinary's reliability and alignment with company values, with no areas for improvement reported.
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$10,000+$50 - $99 / hr10 - 49Kraków, Poland
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See all 13 projectsbyVoice is a web development company specializing in mobile web and application development, offering services such as front-end development and UX/UI design. In their reviews, 100% of clients praise byVoice for their high-caliber work and alignment with client goals, highlighting their efficiency and impressive project management skills.
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$5,000+$25 - $49 / hr2 - 9Wrocław, Poland
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See all 2 projectsCodee is a web development company specializing in front-end development and responsive web design, with expertise in integrating with CMS platforms like WordPress. Notably, 100% of reviewers commend their speed, quality, and communication. A recurring theme is Codee’s ability to deliver timely, high-quality solutions, though suggestions for improvement include expanding into mobile app development and implementing stricter quality checks.
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Undisclosed$25 - $49 / hr2 - 9
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See all 2 projectsSeelan Graphic Compass Private Limited is a web development company that specializes in custom website development and web design. They were praised for delivering a high-quality project within seven days, impressing 100% of reviewers with their prompt communication and adherence to budget and timelines.
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Undisclosed$150 - $199 / hr2 - 9
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See all 1 projectsExpand Creative Group is a web development company specializing in website content and design, as well as marketing collateral support. Client feedback is overwhelmingly positive, highlighting their collaborative approach and efficient project delivery. Notably, 100% of the reviewers praised their quality work and alignment with client values, resulting in a 20% increase in key site metrics.
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$25,000+$25 - $49 / hr10 - 49Rugby, England
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See all 4 projectsCoreScripts Technologies LTD is a Web Development company specializing in Web-based applications and services. They are noted for completing projects on time and within budget, with effective project management and strong expertise in Microsoft Stack and MEAN Stack technologies. Reviewers highlighted their impressive delivery and smooth teamwork, with minimal areas for improvement mentioned.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 1 projectspoojasoftwebsolutions is a web development company specializing in Website Development, Web Design, and online marketing services. The reviews highlight their reliable and efficient execution of projects, with all feedback being positive. Clients appreciate their cost-effectiveness and ability to handle tasks overnight, enabling companies to focus on lead generation and content creation.
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$50,000+$25 - $49 / hr10 - 49Warszawa, Poland
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See all 5 projectsABNK Premium Systems is a web development company specializing in responsive and custom web application development. Their reviews highlight exceptional communication and responsiveness, with 100% of clients noting timely delivery and effective project management. The company is praised for its strong cultural fit and adaptability to client needs.
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$5,000+$50 - $99 / hr10 - 49Rīga, Latvia
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See all 4 projectsDEGO is a proficient web development company specializing in custom website development and web design services. Across client reviews, they are praised for their adaptability, responsiveness, and ability to meet project goals promptly, with 100% of reviewers noting high satisfaction with project outcomes. However, some feedback indicates room for improvement in project management and detailed communication.
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$5,000+< $25 / hr10 - 49Dharamshala, India
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See all 1 projectsAgency Couch is a full-stack web development company specializing in custom website development, web design, and digital marketing. Reviews indicate a 100% positive feedback rate, emphasizing their impressive project management skills and effective partnership approach, resulting in higher client acquisition and improved project delivery rates. Their ability to understand and execute client objectives is frequently highlighted.
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$1,000+< $25 / hr50 - 249
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See all 6 projectsBest Remote Team is a web development company that excels in custom website development and web design. With 100% positive feedback, clients appreciate their dedication, timely delivery, and stable communication. They effectively enhance guest management systems, helping businesses upsell services and personalize communication, making them a valuable partner for hospitality industry projects.
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$5,000+$25 - $49 / hr10 - 49Lalitpur, Nepal
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See all 12 projectsMakura Creations is a versatile web development company that excels in website development, branding, digital strategy, and social media management. With a strong focus on customer satisfaction, 100% of their reviews highlight their creativity, responsiveness, and timely delivery. Reviewers frequently commend their ability to adapt to last-minute changes and their commitment to exceeding expectations.
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Undisclosed$50 - $99 / hr10 - 49Abeokuta, Nigeria
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See all 2 projectsBinatec Agency specializes in Website Development and Web Design, delivering aesthetically appealing and professional websites. The agency demonstrates effective problem-solving skills, as evidenced by their ability to address and fix initial website issues. Clients appreciate the appealing design and professional quality of their work, though they suggest exploring alternative suppliers for better cost efficiency in the dropshipping model.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 7 projectsSilverSky Technology is a Web Development company specializing in custom website development and web programming. Their reviews indicate a 100% positive feedback rate, highlighting their excellent project management and adaptability to changing project scopes. Clients appreciate their effective communication and timely delivery, with SilverSky Technology ensuring high-quality results that meet client specifications.
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$10,000+$25 - $49 / hr10 - 49Prague, Czech Republic
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See all 1 projectsThink Easy s.r.o. is a web development company highly rated for its excellent communication, technical expertise, and efficient problem-solving in web application and custom website development. Engerio's project manager praises their responsiveness and innovative proposals, with 100% positive feedback for their services over two years.
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$5,000+$50 - $99 / hrFreelancerSofia, Bulgaria
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See all 3 projectsDevzone Tech is a web development company specializing in Website Development and SEO services. They have consistently delivered high-quality work tailored to client needs, as evidenced by 100% positive feedback. Clients commend their efficient project management and strong communication, noting their ability to deliver promptly and within budget. Their dedication and impact on clients' businesses are frequently highlighted in reviews.
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$5,000+$100 - $149 / hr2 - 9Aachen, Germany
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See all 5 projectsFeatherFlow is a web development company specializing in custom website development and strategic positioning. With 100% positive feedback, clients commend their reliable project management, timely delivery, and deep understanding of SaaS products. Approximately 80% of reviewers highlight their strategic thinking and tailored, hands-on guidance, particularly in webpage structure and UX recommendations.
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$10,000+$25 - $49 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 5 projectsTechbit Solutions Pvt. Ltd. is a web development company specializing in building secure, quick-loading websites and eCommerce solutions. Their work is frequently praised for strong communication, timely delivery, and excellent value, with 100% positive feedback highlighting their professionalism and expertise in Web Development.
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$10,000+$25 - $49 / hr10 - 49Bjelovar, Croatia
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See all 5 projectsSIGIT Agency is a proficient web development company specializing in custom web application development and full-stack web development. The agency receives overwhelmingly positive feedback, with clients praising their agile project management and timely delivery of projects. Key attributes highlighted include their adaptability to new project requirements and their effective communication and execution, with no areas for improvement noted by reviewers.
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$5,000+$50 - $99 / hr10 - 49Calgary, Canada
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See all 3 projectsUllaco Corp is a web development company specializing in custom website development and web design. The reviews suggest a highly positive client experience, with an increase in online bookings and clinic visits reported by 100% of reviewers. Clients appreciate their effective project management and the personal relationships they cultivate.
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Undisclosed$50 - $99 / hr10 - 49Warszawa, Poland
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See all 1 projectsPredictes is a digital marketing and e-commerce development company. Their services were highly praised, with 40% of clients noting improvements in website appeal, and positive remarks about their project management and team collaboration. While their innovative thinking was noted, it occasionally differed from client perspectives.
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$5,000+$25 - $49 / hr50 - 249Surat, India
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See all 7 projectsIdentixweb Limited is a comprehensive web development company specializing in custom website development, including design, algorithms, and customized website behavior. They are praised for their exceptional customer service, affordability, and capacity to meet project goals efficiently. All reviewers emphasize their effective project management and well-rounded team, with 100% positive feedback highlighting their skill diversity and timely delivery.
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Undisclosed$25 - $49 / hr2 - 9
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See all 2 projectsMandelbrot is a development company specializing in creating iOS and Android applications, particularly focusing on projects that require complex coding and interactive elements. Reviews indicate a high level of satisfaction, with 100% of the feedback being positive, highlighting their seamless integration into teams, attention to technical and aesthetic details, and the ability to deliver high-performance applications.
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$5,000+$50 - $99 / hr10 - 49Bengaluru, India
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See all 2 projectsAppsWise Technologies is a software development company specializing in creating modular and user-friendly applications. The overall feedback from clients is highly positive, with approximately 90% praising their responsiveness, technical skills, and ability to understand client needs. However, some suggest improvements in testing processes and project estimations. Clients appreciate their strong work ethic, transparent communication, and dedication to delivering projects on time.
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$10,000+$25 - $49 / hr2 - 9Zielona Góra, Poland
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See all 4 projectscodeclutch is a full-service web development company specializing in Web Programming and Smart Contract development. With a strong emphasis on Custom Website Development and high-quality service delivery, 100% of reviewers highlight their excellent communication and project execution. Clients consistently praise their ability to meet deadlines and provide comprehensive solutions.
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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
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39/40.019.2/20 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 -
$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 -
$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 -
$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 -
$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 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 -
$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+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38.4/40.018.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% 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 / 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 -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
37.8/40.018/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$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 - 249Cypress, 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.