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 - $49 / hr10 - 49Gurugram, India
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See all 3 projectsColoredCow Consulting is a proficient web development company specializing in website and web application development, with expertise in both front-end and back-end development. They have received overwhelmingly positive feedback, with reviewers praising their agile project management, open communication, and commitment to exceeding expectations. Notably, 100% of reviewers highlighted their collaborative approach and effective delivery of complex projects.
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$1,000+$25 - $49 / hr10 - 49Bengaluru, India
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See all 13 projectsBrandshark is a web development company specializing in custom website development, web design, and full-stack web development. With 100% positive feedback from reviewers, clients praise their professionalism, responsiveness, and value for cost. Key themes include impressive design quality and timely delivery, with 83% of reviewers mentioning the company's excellent project management and communication. Brandshark consistently delivers user-friendly and responsive websites that enhance customer satisfaction and business performance.
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$1,000+$100 - $149 / hr10 - 49
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See all 3 projectsCrossfield Digital is a full-stack web development company renowned for its expert website development and design services. With an impressive track record, 100% of reviewers commend their seamless project management and responsiveness. They excel in creating user-friendly platforms that enhance brand visibility and facilitate seamless user experiences, evidenced by their work on a global sports tournament's expanding online presence.
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$10,000+$25 - $49 / hr10 - 49Yerevan, Armenia
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See all 2 projectsInnoverse is a web development company specializing in custom website development and online development solutions, including web design and full-stack web development. All reviewers express satisfaction, highlighting stylish and well-functioning websites with excellent project management and 24/7 problem-solving support. The company has maintained a 100% positive feedback rate, with no issues reported by clients.
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$5,000+< $25 / hr10 - 49Kolkata, India
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See all 6 projectsBlue Copper Technologies Pvt Ltd is a custom software development company known for delivering high-quality applications across diverse industries, including fashion, accounting, insurance, and legal services. Their expertise in creating geo-location apps, web interfaces, and custom platforms is reflected in their clients' satisfaction, with approximately 90% of feedback being positive. Clients commend their project management skills, responsiveness, and dedication, though some mention challenges due to geographical differences.
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$5,000+< $25 / hr50 - 249Colombo, Sri Lanka
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See all 4 projectsXiteb Pvt Ltd is a web development company offering services in eCommerce websites, custom software, and mobile app development. Reviews indicate a 100% satisfaction rate, praising their professionalism, timely delivery, and QA processes. Clients appreciate their project management skills and effective communication, mentioning they are highly supportive and value-oriented.
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$1,000+< $25 / hr10 - 49Faridabad, India
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See all 24 projectsNetMaxims Technologies is a web development company specializing in custom website development, web application development, and online development. They consistently receive positive feedback for their punctuality, professionalism, and effective communication, with 100% of reviewers praising their ability to meet project deadlines and deliver high-quality results. Their transparent approach and dedication to client satisfaction are frequently highlighted by clients.
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$1,000+$25 - $49 / hr10 - 49Chandigarh, India
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See all 5 projectsSkytz Software Labs is a software development company specializing in mobile app development, web development, and system solutions. Reviews highlight their exceptional ability to meet client needs
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$5,000+$100 - $149 / hr2 - 9Buckingham, England
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See all 5 projectsYellow Moose is a web development company that specializes in Website Development, including e-commerce and custom website solutions. Reviews from clients are overwhelmingly positive, highlighting their high-quality work, responsive communication, and competitive pricing. Over 90% of reviewers praised their project management and ability to fulfill complex requirements, underscoring their passion and enthusiasm for producing excellent web solutions.
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$10,000+$25 - $49 / hr10 - 49
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See all 6 projectsDatacrafts.io is a web development company specializing in custom website development and web application development, particularly using Ruby on Rails and Vue.js. Their reviews highlight a remarkable 100% client satisfaction rate, emphasizing their flexibility, responsiveness, and high-quality code. Their ability to integrate testing and handle complex projects with professionalism and expertise is frequently mentioned, showcasing their impressive commitment to project success.
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$25,000+$150 - $199 / hr10 - 49San Diego, CA
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See all 3 projectsFrogmouth Digital is a web development company specializing in Drupal-based website development and customization. They have been praised for their ability to meet deadlines and deliver features on time, with 100% of reviewers noting successful project outcomes. While their innovative approach is appreciated, 50% of reviewers mentioned occasional communication challenges.
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$10,000+$100 - $149 / hr2 - 9Vancouver, Canada
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See all 3 projectsHammerhead is a web development company specializing in custom website development and web design, offering services such as data migration and full-stack web development. With 100% positive feedback, clients praise their quality work, effective communication, and adherence to quotes. Notably, 33% of reviews highlight their ability to significantly improve website traffic and user engagement.
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$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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$5,000+$100 - $149 / hr2 - 9
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See all 1 projectsQSSTUDIO is a web development company known for its expertise in Website Development and Web Programming. They receive consistently high praise, with 100% of reviewers highlighting their technical knowledge and the timely delivery of projects. Clients appreciate their alignment with company values and cost-effective solutions.
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$25,000+$25 - $49 / hr50 - 249Seoul, South Korea
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See all 1 projectsMckinley & Rice Inc. is a web development company that specializes in Website Development, Web Design, and Web Programming, with an emphasis on WordPress, WooCommerce, and AWS. Reviewers consistently highlight their ability to deliver projects on tight schedules, with 100% positive feedback on their project management and client communication. They excel in customizing and localizing web solutions to meet specific client needs.
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$1,000+< $25 / hr10 - 49
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See all 2 projectsGiveTurn is a web development company specializing in custom website design, full-stack web development, and web programming. Based on reviews, 100% of clients report improved online presence and operational efficiency, emphasizing their project management proficiency and client-focused approach. Clients appreciate their ability to deliver tailored digital solutions and high responsiveness, suggesting minor improvements in post-launch support and documentation.
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$10,000+$50 - $99 / hr2 - 9London, England
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See all 4 projectsTeque - Bespoke Applications is a web development company offering services such as web programming, custom website development, and application development. Reviews highlight their innovative approach and strategic support, with 100% of reviewers noting their impressive project management and alignment with company values, leading to successful outcomes without areas for improvement.
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$5,000+$25 - $49 / hr10 - 49Buenos Aires, Argentina
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See all 4 projectsBorea Studio is a web development company specializing in custom website development and web design. They are consistently praised for high-quality design work and their dedication to understanding client visions, though 33% of reviews mention improvements needed in project timelines. Overall, they are recognized for providing good value for cost and personalized service.
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$1,000+$50 - $99 / hr10 - 49Miami, FL
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See all 2 projectsCode 8 specializes in full-stack web development, providing services that encompass both front-end and back-end development, with expertise in platforms like WordPress and HubSpot. Reviews highlight their high-quality standards, responsiveness, and ability to integrate design with development. About 90% of feedback is positive, with clients praising their project management and ability to find creative solutions. However, some suggest improvements in proactive communication and deadline adherence.
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$5,000+$50 - $99 / hr2 - 9Zagreb, Croatia
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See all 8 projectsBeap is a professional web development company specializing in custom website and web application development, with expertise in front-end and back-end development. The company has received overwhelmingly positive feedback, with 100% of reviewers highlighting their timely delivery, technical proficiency, and adaptability to client needs. Clients frequently praise Beap's strong communication skills and their ability to work well within diverse and distributed teams.
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$1,000+$50 - $99 / hr2 - 9Cape Town, South Africa
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See all 12 projectsVegatech is a renowned web development company specializing in custom website development and web design, frequently praised for their professionalism, attention to detail, and timely delivery. With 100% positive feedback, clients consistently commend Vegatech's ability to translate visions into functional, user-friendly websites, leading to enhanced online presence and increased business outcomes.
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$5,000+$25 - $49 / hr10 - 49Kraków, Poland
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See all 7 projectsEl Pixel is a web development company specializing in front-end and back-end development, offering services such as custom website development and web application development. The reviews indicate a high satisfaction rate, with 100% of the feedback being positive, highlighting their timely delivery, responsive communication, and alignment with client company values. Notably, 75% of the reviewers praised their effective project management and cost-effective solutions.
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$1,000+< $25 / hr50 - 249
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See all 5 projectsSkyQuest is a versatile digital transformation company specializing in custom software development, e-commerce solutions, and inbound marketing strategies, with a notable emphasis on HubSpot CRM integration and business intelligence platforms. The company has received overwhelmingly positive feedback, with 100% of reviews highlighting their professionalism, effective communication, and transparent project management. Clients consistently praise their responsiveness and ability to deliver projects on time, underscoring SkyQuest's commitment to excellence and client satisfaction.
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$5,000+$50 - $99 / hr10 - 49
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See all 6 projectsDesignTorontoWeb.ca is a web development company specializing in custom website development and SEO optimization. Client reviews reveal positive outcomes, with a 40% increase in traffic and improved search rankings, while highlighting their responsive communication and strategic insights. Approximately 90% of feedback mentions their technical prowess and strategic approach, though some minor delays in design tweaks were noted.
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$1,000+< $25 / hr10 - 49Jaipur, India
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See all 8 projectsSERP SHINE is a comprehensive web development and digital marketing company, excelling in services like web design, SEO, and social media management. Customers frequently highlight their expertise in Web Programming and SEO, with over 90% of reviews praising their effective strategies and professional project management. Their attention to detail and tailored approach significantly improve online traffic, rankings, and customer engagement.
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$50,000+$50 - $99 / hr10 - 49Timișoara, Romania
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See all 1 projects[e-spres-oh] is a software engineering company known for its ability to integrate seamlessly with clients' teams, offering services that include enhancing data integration using Ruby on Rails. The company is praised for its strategic acumen and responsiveness, with 100% of feedback highlighting their strong partnership and proactive approach, although some mention the need for occasional prompting in handling bugs.
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$5,000+Undisclosed10 - 49
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See all 2 projectsAbron Studio is a versatile creative agency specializing in video motion production, branding, and web design. The company consistently receives positive feedback, with 100% of reviewers praising their professionalism, creativity, and project management. Clients commend their ability to deliver high-quality content on time and within budget, contributing significantly to branding and educational efforts.
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$25,000+$150 - $199 / hr2 - 9London, England
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See all 3 projectsPixie Labs is a web development company known for their technical expertise and agile approach, providing services like Custom Website Development and Web Application Development. With a focus on aligning with client values and culture, they have demonstrated a 100% positive feedback rate from clients, highlighting their ability to deliver projects on time and adaptively meet changing requirements.
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$10,000+$25 - $49 / hr50 - 249London, England
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See all 3 projectsAstwellsoft is a software development company specializing in modernizing legacy systems and offering end-to-end solutions in digital healthcare and related domains. Their services are highly regarded, with 100% of reviewers praising their timely delivery and proactive project management. Clients appreciate their expertise and dedication, with no reported areas for improvement in their engineering capabilities.
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$25,000+$25 - $49 / hr50 - 249
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See all 2 projectsProfITsoft is a distinguished web development company specializing in Java enterprise solutions, custom website development, and web application development. Their expertise significantly contributed to a client's commercial success, with 100% of reviewers praising their professionalism and on-time delivery. However, 10% noted language proficiency as an area for improvement, although communication remained effective overall.
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$1,000+< $25 / hrFreelancerRajkot, India
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See all 1 projectsVijay Bhatiya is a front-end development specialist known for his expertise in HTML, CSS, JavaScript, TypeScript, and SCSS, providing dynamic and reliable website development services. With 100% positive feedback, he is praised for his diligence, enthusiasm, and adaptability, making him an indispensable asset for ongoing web programming projects.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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See all 1 projectsCodevale Technologies is a web development company providing Website Development, Web Design, and digital marketing services. Their clients appreciate their responsive communication and competitive pricing, leading to improved website performance and increased leads. Approximately 100% of reviewers highlight their efficient service and willingness to go the extra mile, with no significant areas for improvement noted.
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$10,000+$25 - $49 / hr10 - 49Darmstadt, Germany
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See all 11 projectsL-One Systems GmbH is a web development company praised for their expertise in Web Application Development and Custom Website Development. Approximately 100% of reviews highlight their exceptional communication and quality of service. Their impressive ability to deliver projects on time and within budget, coupled with a strong cultural fit, showcases their commitment to client satisfaction and cost efficiency.
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$1,000+< $25 / hr2 - 9Bikaner, India
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See all 1 projectsMintoSoft is a web development company specializing in custom website development and web application development. They received 100% positive feedback, with clients praising their professionalism, effective communication, and ability to meet deadlines. MintoSoft effectively delivered a quality project for an online music education platform using PHP, MySQL, and Unity technologies.
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$10,000+$50 - $99 / hr50 - 249Philadelphia, PA
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See all 12 projectsSpeed & Function is a versatile web development company specializing in full-stack and custom website development services. They are highly praised for their responsive communication, timely project delivery, and technical expertise, with around 100% of reviews highlighting these strengths. Clients often commend their proactive nature and seamless integration into teams, making them an ideal partner for a wide range of web programming and development needs.
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$1,000+$25 - $49 / hr10 - 49Kraków, Poland
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See all 5 projectsNOGRAVITY is a versatile software development company specializing in creating mobile applications and interactive web portals. The majority of feedback is overwhelmingly positive, with 100% of reviewers praising their project management skills, technical proficiency, and commitment to deadlines. Clients consistently highlight their dedication, flexibility, and transparency, with 80% of reviews specifically mentioning their exceptional communication and problem-solving abilities.
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$1,000+< $25 / hr2 - 9Surat, India
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See all 3 projectsCodeInfluencer IT Solutions LLP is a web development company specializing in upgrading and maintaining website functionality. They offer solutions in Web Development, with clients praising their quick and affordable service. With 100% positive feedback, clients highlight their effective communication and comprehensive problem-solving capabilities.
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$5,000+$100 - $149 / hr2 - 9Lake Mary, FL
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See all 11 projectsbuildrrDIGITAL is a web development company specializing in custom website development, web application development, and full-stack web development. With a focus on personalized service and effective project management, 100% of reviews highlight their responsive communication and ability to meet client expectations. Clients appreciate their proactive approach to enhancing business operations with tailored online solutions.
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$10,000+$50 - $99 / hr10 - 49Bratislava, Slovakia
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See all 5 projectsWEZEO is a versatile development company specializing in frontend development, mobile applications, and web solutions across various industries. They are consistently praised for their technical expertise and efficiency, with over 80% of reviewers highlighting their strong project management and communication skills. Feedback indicates high customer satisfaction, with follow-on engagements often resulting from initial projects.
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$25,000+$100 - $149 / hr2 - 9Brooklyn, NY
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See all 1 projectsSein Analytics is a design firm specializing in logo creation, web design, and enhancing campaign usability. The company is highly recommended for its excellent communication and responsiveness, with 100% positive feedback. Clients appreciate their collaborative approach, likening the experience to working with a colleague rather than a vendor.
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$5,000+< $25 / hr50 - 249Indore, India
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See all 29 projectsImmersive Infotech Pvt Ltd is a web development company specializing in custom website development, web application development, and full-stack web development. They receive consistently positive feedback, with clients praising their professionalism, responsiveness, and ability to deliver projects on time. Remarkably, 100% of reviewers highlight their effective communication and project management skills.
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$5,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 14 projectsRedlio Designs is a web development company specializing in custom website development and design. They demonstrate a strong commitment to client satisfaction, with 100% of reviews highlighting their impressive design quality, responsive communication, and efficient project execution. Some reviews mention minor areas for improvement, such as attention to small details, but overall client feedback is overwhelmingly positive.
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$5,000+$50 - $99 / hr10 - 49Glasgow, Scotland
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See all 8 projectsUncover Commerce is a web development company specializing in e-commerce solutions, offering services such as custom website development and web application development. Their clients report high satisfaction, with 100% positive feedback, highlighting their professionalism, collaborative approach, and commitment to tailored solutions. Notably, 75% of reviewers appreciated their understanding of unique business needs and implementation of custom features.
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$10,000+$25 - $49 / hr10 - 49T'bilisi, Georgia
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See all 2 projectsSyfec is a development company specializing in enhancing application architecture and developing platform features. Overall feedback is positive, with reviewers highlighting effective communication and project management. Approximately 100% of clients were impressed by the company's adaptability and expertise, while acknowledging room for improvement.
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$10,000+$25 - $49 / hr10 - 49Bengaluru, India
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See all 1 projectsDigiapt is a web development company known for its expertise in Angular web development, offering comprehensive services such as wireframes and software design. Approximately 100% of the reviewers highlight their ability to ideate frameworks and manage ambiguity effectively. Positive feedback is prevalent, though some mention the need for improved feature prioritization.
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$10,000+$25 - $49 / hr10 - 49Kharkiv, Ukraine
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See all 21 projectsAppus Studio is a comprehensive Web Development company proficient in Custom Website Development, Web Design, and Web Application Development. Clients appreciate their ability to deliver high-quality solutions and effective project management. With about 90% positive feedback, their strengths include innovative solutions and scalability, although minor communication issues have been noted early in projects.
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$5,000+$25 - $49 / hr10 - 49
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See all 3 projectsJITO is a web development company specializing in Web Application Development and Custom Website Development. The reviews highlight their exceptional design work, noting their ability to transform complex ideas into stunning visuals. With a 100% positive feedback rate, clients praise their professional service, prompt delivery, and effective project management, leading to seamless and cohesive web solutions.
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$100,000+$25 - $49 / hr50 - 249Cluj-Napoca, Romania
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See all 1 projectsBitStone is a proficient web development company known for its expertise in Custom Website Development and Full-Stack Web Development. Clients consistently praise their professionalism and adaptability, with 100% mentioning their impressive work ethic. However, some reviews suggest improvements in cost management by optimizing team processes.
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$25,000+$150 - $199 / hr2 - 9Seattle, WA
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See all 1 projectsNorthwest Independent Ruby Development is a web development company specializing in full-stack web development and custom website development with a focus on HIPAA-compliant applications. They have demonstrated strong project management skills and effective communication, praised by clients for making complex development issues comprehensible. Overall, the company received 100% positive feedback for their ability to deliver stable and functional web applications.
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$5,000+$25 - $49 / hr10 - 49Thane, India
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See all 9 projectsRedSoft Solutions Pvt. Ltd. is a proficient web development company specializing in comprehensive web and application development, including both frontend and backend solutions. They consistently receive high praise for their excellent communication skills, project management, and adherence to deadlines and budgets, with 100% of reviewers appreciating their commitment and problem-solving capabilities.
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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.