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 87 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development firm offering comprehensive solutions in custom website development, full-stack web development, and web application development. With 100% positive feedback, clients commend their seamless integration into teams, high-quality deliverables, and responsiveness. Approximately 80% of reviews highlight their effective project management and communication, emphasizing their reliability and expertise in meeting project milestones.
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$1,000+< $25 / hr10 - 49Jaipur, India
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See all 1 projectsBalaji Websoft Technology Pvt. Ltd. is a web development and digital marketing company that excels in developing e-commerce websites and providing marketing and Google Analytics services. The company is praised for its systematic approach, on-time delivery, and effective communication, with 100% positive feedback highlighting their precision and ability to exceed expectations.
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$50,000+Undisclosed250 - 999
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See all 1 projectsTriSeed is a software development company specializing in IT software solutions, security training, and cloud services. Reviewers consistently praise TriSeed for their technical expertise, senior engineering team, and timely project delivery, with 100% of feedback highlighting effective communication and successful project outcomes. There are no reported areas for improvement, indicating high client satisfaction.
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$5,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 8 projectsYoungBrainz Infotech is a Web Development company specializing in custom Website Development and Full-Stack Web Development. Reviews indicate 100% satisfaction with their quality, reliability, and timely delivery, with clients praising their technical proficiency, project management, and alignment with client values. Notably, 50% of reviewers highlight their professional and collaborative approach.
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$5,000+$50 - $99 / hr10 - 49Beograd, Serbia
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See all 12 projectsRagebite is a proficient web development company excelling in custom website development and full-stack web development services. Garnering positive feedback in 100% of reviews, clients commend their problem-solving capabilities and design coherence, although improvements in client guidance are suggested. Their adaptability and successful project management, even in complex environments, highlight their dedication to quality and timely delivery.
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$10,000+$25 - $49 / hr10 - 49Chișinău, Moldova
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See all 15 projectsXY Digital is a web development company renowned for its expertise in custom website development, online development, and web application development. With 100% positive feedback, clients consistently commend their technical skill, flexibility, and punctuality. Approximately 85% of reviewers highlight their excellent project management and responsiveness, making them a reliable partner for digital solutions.
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$5,000+$50 - $99 / hr10 - 49
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See all 1 projectsProducters (Out of Business) was a development company specializing in enhancing mobile and web applications. While 100% of their reviews highlighted their understanding of business needs, 100% also mentioned the presence of bugs in deliverables. Despite the need for extensive testing, they maintained budgets effectively, with a project cost range of $20,000 to $30,000.
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Undisclosed$25 - $49 / hr10 - 49Dhaka, Bangladesh
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See all 1 projectsBEAR MY BRAND, LLC is a comprehensive brand identity development agency specializing in web development and digital marketing. They have received overwhelmingly positive feedback, with 100% of reviewers highlighting their professionalism and promising results. Many clients commend their effective communication and impressive project management skills.
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UndisclosedUndisclosed2 - 9Bollington, England
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See all 1 projectsACS is a web development company specializing in custom website development and CRM integration. The feedback for ACS is overwhelmingly positive, with reviewers highlighting their high-quality tech development, expertise in front-end and back-end development, and reliable communication. While time management could occasionally improve, the overall experience with ACS is marked by trust and effective collaboration.
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$5,000+$25 - $49 / hr2 - 9Mumbai, India
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See all 1 projectsMetaRizz Technologies is an e-commerce development and digital marketing company. They received a 100% positive feedback rate, with clients praising their project management, 24/7 availability, and effective communication. They delivered a high-converting website, significantly increasing sales and reaching a global customer base.
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$1,000+$100 - $149 / hr2 - 9Miami, FL
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See all 2 projectsFinal Exchange LLC is a web development company known for its strong work ethic and budget-friendly services. The reviews highlight a 100% positive feedback rate, with clients praising their responsiveness and ability to significantly increase website inquiries. Notably, 100% of reviewers mention their attentiveness and commitment to client satisfaction.
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$10,000+$25 - $49 / hr2 - 9
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See all 2 projectsSuperlative is a mobile app development company recognized for its expertise in developing MVPs for startups, with a focus on iOS and Android platforms. The reviews highlight their flexibility and effective project management, with 100% of feedback attesting to on-time delivery despite changing requirements. Additionally, their transparency and honest communication are repeatedly praised by clients.
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$1,000+$100 - $149 / hr2 - 9Seven Hills, Australia
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See all 1 projectsWeb Doodle is a web development company praised for its Web Design and Custom Website Development services. With 100% positive feedback, clients appreciate their easy collaboration and impressive results, highlighting their effectiveness in delivering successful projects.
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$10,000+$50 - $99 / hr2 - 9St. Helens, OR
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See all 3 projectsSoftware Harmonics, LLC is a web development company specializing in website optimization and back-end analytics. The company has received 100% positive feedback, with clients praising their in-depth analysis, responsive communication, and problem-solving capabilities. Approximately 50% of reviewers highlighted their proficiency in addressing Google-related challenges and improving website performance.
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$5,000+$150 - $199 / hr10 - 49Bellevue, WA
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See all 3 projectsTruu Digital is a web development company known for its expertise in Custom Website Development and Web Design, particularly using HubSpot. With 100% positive feedback, clients appreciate their professionalism, modern design capabilities, and prompt issue resolution. Notably, 33% of reviews highlight their ability to enhance user navigation and experience, leading to increased user engagement and satisfaction.
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$1,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 1 projectsWebtech Solutions India is a web and app development company known for delivering clean, professional, and user-friendly design services. The reviews highlight their impressive communication and creative skills, with no significant areas of improvement mentioned. Overall, client feedback is predominantly positive, underscoring their effective teamwork and project management capabilities.
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$5,000+$50 - $99 / hr10 - 49Vancouver, Canada
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See all 36 projectsINPREZA ® LLC is a web development company praised for delivering high-quality websites with efficient project management and excellent customer service. Clients consistently highlight their fast communication and understanding of business needs, with 100% of reviewers expressing satisfaction and no areas for improvement. Most mention their expertise in web development, design, and promotion, enhancing clients' online presence and attracting new customers.
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$5,000+$25 - $49 / hr10 - 49București, Romania
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See all 4 projectsTribus Technologies is a web development company specializing in custom website development and web application development. With a 100% positive feedback rate, clients commend their strong project management skills and ability to meet deadlines. Reviewers frequently highlight their impressive company culture and effective communication, with 100% noting their proficiency in delivering reliable, high-performance products.
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Undisclosed$25 - $49 / hr10 - 49Kharkiv, Ukraine
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See all 8 projectsItera-research is a versatile web development company offering services in web application development, full-stack web development, and custom website development. Their reviews emphasize excellent communication and technical expertise, with 75% highlighting their superior project management and technical skills in PHP and Laravel development. Although some noted initial issues with developer allocation, clients appreciated Itera-research's responsiveness and problem-solving capabilities.
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$1,000+< $25 / hr10 - 49
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See all 3 projectsNextyug India IT Solution is a software development company known for its attentive client service and agile development approach. They received 100% positive feedback for their accurate and timely delivery, with all reviewers highlighting their skilled team and effective communication. Their solutions demonstrate a high understanding of client requirements and technological expertise.
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$10,000+$25 - $49 / hr2 - 9Mengeš, Slovenia
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See all 1 projectsWebZone is a web development company that provides comprehensive solutions, including website creation, marketing, and photoshooting services. Feedback from clients is overwhelmingly positive, with 100% praising their communication skills, timely delivery, and ability to meet project demands efficiently. Clients highlight their impressive UI/UX design and customer support, making them a recommended choice for businesses seeking a complete e-commerce setup.
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$1,000+$25 - $49 / hr10 - 49Islamabad, Pakistan
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See all 3 projectsGeekinate is a web development company specializing in services such as website development, custom website development, and front-end development. Across their reviews, 100% of clients praised their excellent communication and project management skills, leading to successful and timely project deliveries. While some noted areas for improvement in mobile responsiveness testing, clients consistently appreciated Geekinate's creativity, responsiveness, and alignment with client values.
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$25,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 5 projectsChimera Prime AS is a web development company specializing in custom website development and full-stack web development. The reviews indicate a high level of satisfaction, with 100% of comments highlighting their effective project management and strong collaborative process. Clients commend their comprehensive services, which include web design, web programming, and content creation, leading to significant business growth and successful online development.
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$5,000+< $25 / hr10 - 49Jaipur, India
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See all 1 projectsR and D Infotech is a web development company praised for its effective communication and ability to manage complex projects, including Web Application Development and Custom Website Development. The company has received 100% positive feedback, highlighting their reliability, cost-effectiveness, and guidance in project execution. Reviewers specifically commend their proficiency in project management and responsiveness to changing requirements.
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$10,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 1 projectsWeb Nautical Private Limited is a reputed web development company recognized for its proficiency in custom website development and web application development. The company has received overwhelmingly positive feedback, with reviewers highlighting their fast execution and professionalism. Approximately 90% of reviewers noted their impressive project management and timely delivery, while 10% mentioned communication frequency as an area for improvement.
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Undisclosed$100 - $149 / hr2 - 9Portland, OR
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See all 3 projectsEclipse Media Solutions is a web development company that specializes in precise implementation of web designs, ensuring that final websites align closely with initial design concepts. Their clients consistently commend their excellent communication and responsiveness, with 100% of reviewers highlighting their effective project management and the high quality of their custom website development.
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$5,000+$25 - $49 / hr50 - 249Lalitpur, Nepal
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See all 3 projectsSusankya Global, LLC is a company specializing in web development and custom website development, offering services such as website design and CRM tool integration. They received overwhelmingly positive feedback, with 100% of reviewers highlighting their professionalism, innovative approach, and effective project management. Clients commend their ability to deliver modern, functional websites and integrated solutions that enhance business operations.
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$5,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 1 projectsGeekMindz Solutions LLP is an IT company specializing in Flutter application development, with expertise in creating mobile and web applications. The company receives overwhelmingly positive feedback, with clients highlighting their effective project management and timely communication. A notable 98% functionality accuracy was achieved in a recent project, though some clients suggested better alignment with the AEST time zone.
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$1,000+$50 - $99 / hr2 - 9Sandton, South Africa
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See all 3 projectsVersys Media is a web development company specializing in custom website development and web design. Clients consistently praise their creativity and excellent service, with 100% of reviewers highlighting their ability to enhance online presence and brand alignment. Their streamlined project management and effective communication are also frequently noted as impressive qualities.
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$1,000+Undisclosed2 - 9New Delhi, India
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See all 3 projectsGFXRIDER is a web development company specializing in custom website development and web design. Across their reviews, 100% of clients express satisfaction with their professionalism and quality of service, highlighting their impressive project management and reliable after-sale support. Reviewers consistently commend GFXRIDER for fulfilling commitments and maintaining transparent communication throughout the development process.
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$5,000+$25 - $49 / hr10 - 49Moncton, Canada
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See all 15 projectsBinary Future is a web development company specializing in custom Shopify stores and web application development. Their reviews highlight exceptional communication and technical expertise, with a strong focus on delivering high-quality, user-friendly web solutions. Approximately 95% of clients praise their responsiveness and problem-solving capabilities, although some mention occasional delivery delays typical of tech projects.
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$1,000+$25 - $49 / hr10 - 49
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See all 6 projectsSonerim is a versatile web development company specializing in custom website development, full-stack web development, and web application development. With a high level of professionalism and technical expertise, they have received overwhelmingly positive feedback, with 100% of reviews praising their communication and project management. Clients commend their ability to integrate seamlessly with internal teams and deliver high-quality, maintainable code effectively.
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$1,000+$50 - $99 / hr10 - 49London, England
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See all 2 projectsXecutors is a web development company specializing in Website Development, Web Design, and Online Development. The company receives overwhelmingly positive feedback, with clients praising their transparency and effective project management. A significant 100% of reviewers commend their ability to deliver impressive web solutions, highlighting their commitment to producing tangible results.
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$1,000+$50 - $99 / hrFreelancerGreenslopes, Australia
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See all 4 projectsGareth Hailey Web Design and Multimedia is a versatile company specializing in web development and multimedia services, offering solutions such as full-stack web development, website optimization, and security enhancements. Reviews indicate overwhelmingly positive feedback, with clients consistently praising their reliability, promptness, and expertise in web programming and project management. Notably, 100% of reviewers commend their responsiveness and ability to deliver high-quality results.
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$25,000+$50 - $99 / hr2 - 9
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See all 3 projectsZDEV is a versatile development company specializing in mobile and web applications using technologies like React Native and JavaScript. They consistently deliver high-quality solutions, as evidenced by positive client feedback, including a 40% increase in user conversions and seamless app launches. Clients commend their effective project management, innovative approach, and dedication to aligning with business goals, though some suggest improving client update communications.
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$5,000+$100 - $149 / hr2 - 9
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See all 1 projectsAmanecer Digital is a development agency known for delivering efficient and scalable software solutions, particularly in backend development, UI/UX improvements, and data migration. They are highly regarded for their strategic thinking and effective project management, with 100% of reviews highlighting their excellent communication and transparency. Clients describe them as trustworthy and collaborative, with no negative feedback reported.
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$5,000+$25 - $49 / hr10 - 49Cluj-Napoca, Romania
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See all 1 projectsKLAIN is a web development company specializing in custom website development and web design. They receive positive feedback for their quick delivery and responsiveness, with 100% of reviewers highlighting their openness to changes and effective communication. Clients appreciate their ability to create and adapt content, indicating a strong emphasis on meeting client needs and goals.
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$1,000+Undisclosed2 - 9Warri, Nigeria
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See all 5 projectsSimtech Creative™ offers services in Website Development, focusing on creating and updating web systems. The overall feedback highlights their professionalism and effective project management, with clients noting their satisfaction with the development outcomes and the team's superb communication. Some areas for improvement include customer follow-up.
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$10,000+$50 - $99 / hr10 - 49Newport Beach, CA
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See all 7 projectsWellnuts is a web development company specializing in web application development and custom website development. Their reviews highlight a strong foundation in project management and timely delivery, with 100% of clients praising their technical expertise, responsiveness, and ability to work across multiple time zones. Wellnuts effectively implemented complex solutions, showcasing impressive development speed and quality.
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$5,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 6 projectsTechie Pixel is a web development company specializing in custom website development, offering comprehensive services including web design, online business strategy, and SEO. With 100% positive feedback, clients praise their professionalism, effective project management, and educational support on platforms like WordPress, highlighting their ability to deliver complex projects successfully.
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$1,000+< $25 / hr10 - 49Surat, India
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See all 1 projectsInfyOm Technologies is a web development company specializing in custom website development, including both front-end and back-end development. They have received overwhelmingly positive feedback, with 100% of reviewers praising their coding quality and timely delivery, making them a reliable partner for comprehensive online development projects.
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$5,000+$25 - $49 / hr50 - 249Thiruvananthapuram, India
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See all 2 projectsTILTLABS is a company specializing in virtual and augmented reality services, known for its expertise in integrating immersive technologies into client projects. Reviews indicate a high level of satisfaction, with 100% positive feedback noting the company's ability to deliver innovative solutions and personalized service. Clients commend TILTLABS for meeting project timelines and specifications while highlighting their cutting-edge VR technology implementation and personal project care.
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$5,000+$25 - $49 / hrFreelancer
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See all 2 projectsDralega Web Operations is a web development company specializing in building multifunctional websites with features like content management systems and dynamic back-end integration. The company receives positive feedback for its innovative methods and time efficiency, with 100% of reviewers noting their impressive design ideas and successful project management.
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$1,000+$25 - $49 / hr2 - 9İzmir, Türkiye
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See all 2 projectsNeocrea is a web development company specializing in custom website development and ERP integration. The feedback highlights their effective multilingual communication, competitive pricing, and successful project delivery, with 100% positive reviews noting impressive communication skills and client satisfaction. Reviewers appreciated their ability to design modern websites and integrate complex systems, like SAP, effectively.
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$25,000+< $25 / hr50 - 249Wilmington, DE
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See all 2 projectsMobio Solutions is a versatile software development company specializing in mobile and web applications. Reviews highlight their strong project management, timely delivery, and adaptability, with 100% of reviewers noting their speed and communication. Clients commend their expertise in UX and APIs, unique ability to meet diverse needs, and valuable suggestions, reflecting a high level of client satisfaction.
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$5,000+$25 - $49 / hr2 - 9Szeged, Hungary
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See all 5 projectsTiger Softwares is a full-stack web development company specializing in custom web application development. They delivered a web solution for a karate club that improved event organization efficiency by 70-80%. Reviewers consistently praised their adaptability and communication, with 100% positive feedback highlighting their high-quality output and proactive problem-solving approach.
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$10,000+$50 - $99 / hr250 - 999Oaklands Park, Australia
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See all 1 projectsAVROX Solutions is a web development company specializing in custom website development and web application development with a strong emphasis on emerging technologies like blockchain and NFTs. Reviews highlight their innovative approach and effective project management, with 100% positive feedback emphasizing timely delivery and responsiveness to client needs.
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$75,000+$50 - $99 / hr10 - 49Montevideo, Uruguay
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See all 7 projectsElement 14 is a full-stack web development company renowned for its comprehensive services, which include custom website development, front-end and back-end development, and seamless third-party integrations. Clients commend Element 14 for its technical proficiency, achieving a 99.98% uptime and enhancing system performance. Notably, 100% of reviewers highlight Element 14’s reliable execution, making them a valued extension of their teams.
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$5,000+$200 - $300 / hr2 - 9Doncaster, England
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See all 5 projects12 Studio specializes in web development and web design, offering comprehensive services from app design to advanced web programming. The reviews reveal a consistent theme of exceptional project management, responsiveness, and the ability to deliver world-class work, with 100% positive feedback. The company is praised for its creativity, technical expertise, and commitment to client collaboration, making them a trusted partner in custom website development.
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$5,000+$25 - $49 / hr10 - 49Saint John, Canada
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See all 16 projectsDrupfan is a web development company specializing in Drupal and providing full-stack web development services. Clients consistently praise their technical expertise, timely project delivery, and excellent communication skills. Approximately 90% of the reviews highlight Drupfan's ability to align with client needs, while 80% mention their budget-friendly pricing and professional culture fit.
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$1,000+$25 - $49 / hr10 - 49Ibadan, Nigeria
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See all 9 projectsGoDigital, Inc. is a full-service web development company specializing in custom website development, web design, and branding services. Reviews indicate overwhelmingly positive feedback (100%) for their project management, communication, and ability to exceed client expectations. Clients appreciate their clarity, transparency, and the high quality of their design and development work, with multiple reviewers praising their creativity and adherence to deadlines.
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List of the Top 15 JavaScript Development Companies
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$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$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 -
$10,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.4/40.019.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development60% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
37.7/40.018.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.9/40.019.6/20 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
39.3/40.019.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% 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 -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% 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+$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 -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Web Development45% JavaScript40% 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 - 9,999L'viv, Ukraine
Ability to deliver
38.8/40.019/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.2/40.018.2/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development33% JavaScript90% Other -
$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+< $25 / hr250 - 999Kolkata, India
Ability to deliver
36.3/40.019/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
65% Web Development20% JavaScript35% Other -
$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 -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
38.2/40.018.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$1,000+< $25 / hr1,000 - 9,999Los Angeles, CA
Ability to deliver
36.9/40.019.6/20 Reviews9.3/10 Clients & Experience8/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.8/40.018.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
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 / hr250 - 999Irvine, CA
Ability to deliver
36.4/40.016.4/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
37.9/40.018.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.1/40.019.4/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% 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.