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 - 49HO CHI MINH CITY, Vietnam
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See all 3 projectsREIKA is a branding and design company known for its exceptional creativity, professionalism, and attention to detail. Reviewers, such as the Associate of Fighting Club Luxembourg, praise REIKA for delivering modern and impactful brand identities, with 100% positive feedback highlighting their strong communication and commitment to excellence. Clients highly recommend REIKA for their seamless process and alignment with client values.
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$1,000+$25 - $49 / hr10 - 49
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See all 3 projectsOMANGOM is a web development company specializing in custom website development and web application development. Reviewers highlight their innovative approach to creating functional and user-friendly eCommerce experiences, with 100% of feedback noting their responsiveness and ability to deliver on time. They are praised for providing good value for cost and maintaining strong communication throughout projects.
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$10,000+$25 - $49 / hr10 - 49Rajkot, India
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See all 6 projectsKevit Technologies is a web development company specializing in custom solutions, emphasizing both front-end and back-end development. Feedback highlights their professionalism and commitment, with 100% of reviewers praising their dedication and support. Clients report a positive experience, noting effective project management and successful resolution of initial issues.
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$25,000+$25 - $49 / hr10 - 49Wrocław, Poland
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See all 1 projectsUlan Software is a software development company specializing in creating platforms using technologies such as MongoDB, Cassandra, Vue.js, Node.js, and PHP. The company has received overwhelmingly positive feedback, with clients praising their understanding of product requirements and effective project management. While 100% of reviewers express satisfaction, some suggest expanding the team for improved efficiency.
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$1,000+$200 - $300 / hr10 - 49
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See all 1 projectsCarril Agency is a web development company specializing in web design and custom website development. They are praised for delivering high-quality, user-friendly websites that are both visually appealing and functional. The feedback is overwhelmingly positive, with 100% of reviewers highlighting their timely delivery and impressive communication.
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$10,000+$25 - $49 / hr50 - 249Wrocław, Poland
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See all 8 projectsGentle Code is a web development company specializing in web design and custom website development. Their reviews highlight an impressive 100% positive feedback rate, with clients praising their timely project delivery and effective communication. The company is commended for aligning with client values and being perceived as an extension of their team.
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$5,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 2 projectsFiction Developers is a versatile web development company offering a range of services, including web design, custom website development, and mobile app creation. With 98% positive feedback, clients praise their expertise in front-end and back-end development, adaptability across industries, and reliable project management, leading to high-quality outcomes and efficient solutions for diverse digital needs.
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$1,000+$25 - $49 / hr10 - 49Surat, India
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See all 118 projectsWebvolty IT Solution is a web development company specializing in custom website development, web design, and online development. Reviewers consistently highlight their professionalism, timely delivery, and high-quality outcomes, with a 100% recommendation rate. Clients appreciate their responsive communication and supportive project management, often noting their expertise in both UI/UX and coding.
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$5,000+$25 - $49 / hr10 - 49
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See all 10 projectsEazySoft is a Full-Stack Web Development company specializing in Web Application Development. They receive overwhelmingly positive feedback for their professionalism, responsiveness, and effective project management, with reviewers particularly impressed by their ability to make accurate estimates and deliver projects on budget. Their collaborative approach and excellent communication are frequently highlighted by clients.
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$10,000+$50 - $99 / hr10 - 49Boston, MA
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See all 8 projectsNext Idea Tech, Inc is a web development company with expertise in website development, custom website development, and web application development. The company is highly regarded, with clients praising their ability to deliver high-quality work, responsiveness, and customer focus. Approximately 100% of reviewers highlight their effective project management and ability to meet diverse web development needs, indicating a strong client satisfaction rate.
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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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$1,000+$50 - $99 / hr10 - 49
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See all 2 projectsKytwo is a web development company specializing in website refreshes and updates. Their services have been positively received, with 100% of reviewers noting satisfaction with the completed projects. Clients commend kytwo's responsiveness and helpfulness, highlighting their effective project management and ability to meet budgetary constraints.
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$10,000+$25 - $49 / hr10 - 49L'viv, Ukraine
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See all 4 projectsInSpirito is a Web Development company offering services such as Website Development, Web Design, and Custom Website Development. Their reviews highlight a strong partnership approach, dedication, and proactive project management, with 100% of feedback mentioning impressive teamwork and timely delivery. Clients appreciate their ability to deliver both functional and aesthetically pleasing solutions.
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$1,000+< $25 / hr2 - 9
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See all 2 projectsOnlines is a web development company specializing in Custom Website Development and Full-Stack Web Development, praised for its exceptional UX/UI design and SEO capabilities. With 100% positive feedback, clients appreciate their timely delivery and proactive problem-solving approach. Their holistic involvement and multidisciplinary team ensure comprehensive solutions, with 50% of reviewers highlighting their strong culture fit and client-centric approach.
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$5,000+< $25 / hr50 - 249Indore, India
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See all 7 projectsBrain Inventory Consultancy Services Pvt. Ltd. offers comprehensive services in Website Development, Web Design, and Web Programming, specializing in creating SaaS solutions and mobile applications. Overall feedback highlights their attention to detail, timeliness, and strong project management, though some clients noted occasional communication gaps. They are praised for their excellent team care and ability to deliver high-quality, user-friendly products.
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$5,000+< $25 / hr10 - 49Sahibzada Ajit Singh Nagar, India
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See all 7 projectsG S Bitlabs is a web development company specializing in custom website development and web application development, as evidenced by their work on a gifting platform with innovative features such as group-gifting and anonymous gift checks. The reviews highlight their impressive ability to understand and realize clients' visions, with 100% of feedback underscoring their commitment to collaboration and effective project management.
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$5,000+$25 - $49 / hr50 - 249New Town, India
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See all 5 projectsYeasiTech is a full-stack web development company specializing in custom website development and web application solutions. With a focus on responsive communication and cost-effective service, 100% of their reviews highlight their professional project management and on-time delivery. Clients particularly praise their ability to adapt to feedback and deliver scalable, custom platforms without relying on templates.
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$5,000+$25 - $49 / hr2 - 9Yerevan, Armenia
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See all 2 projectsDevalent is a web development company specializing in custom website development, web application development, and both front-end and back-end development. According to reviews, 100% of the feedback is positive, highlighting their responsiveness, clear communication, and ability to deliver on target and budget, which have been instrumental in securing seed funding for clients.
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$5,000+$100 - $149 / hr2 - 9Shelburne, VT
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See all 1 projectsRoot802 is a web development company specializing in website redesign and custom website development. The company is praised for its exceptional responsiveness and ability to meet tight deadlines, as reflected in the positive feedback from 100% of reviewers, who highlight their impressive project management skills and quick response to feedback.
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$10,000+$50 - $99 / hr10 - 49Sandton, South Africa
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See all 2 projectsAppstrax Technology is a web development company specializing in full-stack web development and custom website development. Reviews highlight their professionalism and ability to understand client visions, with 100% positive feedback focusing on seamless project execution and effective communication. However, some clients suggest clearer timeline expectations could enhance the experience.
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$1,000+$25 - $49 / hr2 - 9
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See all 8 projectsWeb Marketing Solutions, LLC is a web development company specializing in website development, web design, and front-end and back-end development. The feedback is overwhelmingly positive, with 100% of clients highlighting their proactive approach, effective communication, and impressive project management skills. Many clients note improvements in user experience, customer engagement, and SEO performance, reflecting the company's expertise in custom website development and web application development.
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$1,000+< $25 / hr2 - 9Noida, India
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See all 1 projectsIlie Agaue Technologies is a web development company specializing in custom website development and e-commerce solutions. Reviewers consistently highlight the company's expertise and exceptional support, with 100% positive feedback emphasizing their effective project management and fast service delivery. Their ability to meet client needs and deliver impressive results is frequently praised.
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$50,000+$50 - $99 / hr10 - 49New York, NY
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See all 8 projectsCreative360 is a versatile app and web development company, excelling in design and project management. They have consistently delivered high-quality prototypes and applications, with a strong emphasis on user experience and design. The company boasts a 100% positive feedback rate from reviewers, who frequently commend their professionalism, responsiveness, and ability to translate client ideas into reality.
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$1,000+$50 - $99 / hr10 - 49Olsztyn, Poland
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See all 3 projectsArtneo is a web development company with expertise in Website Development, Web Design, and Web Application Development. The reviews emphasize Artneo's professionalism, flexibility, and ability to deliver on time, with 100% of reviewers highlighting positive outcomes such as responsiveness, creativity, and alignment with client needs. Overall, clients commend Artneo's comprehensive project management and individual approach to each task.
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$5,000+< $25 / hr50 - 249Chandigarh, India
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See all 13 projectsIT Infonity is a web development company offering comprehensive services in custom website development, web design, and web application development. Overall, 75% of reviews praise their effective communication and project management, though 25% noted challenges with timelines and technical issues. Clients value their deep understanding of project needs and cost-effectiveness, with notable improvements in user experience and business growth.
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$1,000+$25 - $49 / hr2 - 9Rabat, Morocco
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See all 6 projectsCode Studio is a web development company specializing in custom website and web application development. They excel in full-stack web development and have a strong reputation for delivering high-quality projects, with 100% of reviews highlighting their adaptability and expertise in Webflow. Clients appreciate their proactive project management and problem-solving skills, consistently praising their responsiveness and client-oriented approach.
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$10,000+$25 - $49 / hr50 - 249
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See all 16 projectsIceRock Development is a web development company specializing in custom website development, web application development, and full-stack web development. Across their reviews, 100% of clients highlight their effective project management and communication. Clients also appreciate their ability to integrate into their teams and adapt to changing project needs, with some noting areas for improvement in flexibility and resource availability.
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$25,000+$200 - $300 / hr50 - 249
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See all 1 projectsInternetrix is a digital marketing company specializing in SEO, Google Ads, and brand recognition strategies. Reviews highlight their strong customer service and expertise, with 100% positive feedback emphasizing their ability to optimize cost savings and deliver excellent work. Clients commend their responsiveness and technical knowledge, making them a reliable partner in achieving marketing objectives.
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$1,000+$50 - $99 / hr2 - 9Kyiv, Ukraine
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See all 2 projectsPurrcode Solutions is a web development company that excels in coding and customizing websites across various technologies, including PHP, Laravel, node.js, and React. Their clients appreciate the company's responsiveness, quality-focused approach, and ability to meet project requirements. Reviewers consistently recommend Purrcode Solutions, highlighting their expertise and commitment to client satisfaction.
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$1,000+< $25 / hr2 - 9L'viv, Ukraine
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See all 2 projectsVRB teсh is a web development company specializing in comprehensive web and mobile app solutions, including back-end development and chat integration. The reviews reflect a 100% positive experience, highlighting their exceptional customer service, timely delivery, and strong client relationships. Ross and Vitaliy are noted for their impressive professionalism and dedication to providing excellent value for money.
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$10,000+Undisclosed50 - 249
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See all 2 projectsTechnEdge Solutions is a web development company specializing in web design and custom website development. They received 100% positive feedback, with clients praising their responsiveness and quick turnaround times. Their ability to execute clients' visions and enhance business outcomes is consistently highlighted.
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$25,000+$50 - $99 / hr2 - 9Palhoça, Brazil
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See all 1 projectsDub Soluções Mobile - Out of Business was a mobile application and website development company known for its efficient project management and strong communication skills. Their services included developing reservation systems for both iOS and Android, enhancing company credibility. The company received positive feedback for their use of tools like InVision and Trello, with 100% of reviewers praising their communication and management capabilities.
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$5,000+$50 - $99 / hr10 - 49
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See all 10 projectsKing of CMS Consulting is a web development company that excels in delivering comprehensive digital solutions, including website development, custom website development, and web programming. The reviews reflect a 100% positive feedback with clients praising their professionalism, responsiveness, and ability to align technical expertise with client goals. Approximately 33% of reviewers mention their effective communication and project management skills as standout qualities.
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$25,000+$50 - $99 / hr10 - 49
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See all 1 projectsThinkerfox is a consulting firm specializing in infrastructure and CRM solutions, praised for its technical expertise and agile response. All reviewers provide positive feedback, highlighting their professional approach and integration as a true partner in client projects, with a 100% satisfaction rate.
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$10,000+$150 - $199 / hr10 - 49Seattle, WA
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See all 6 projectsHelpful Human is a web development company specializing in custom website development and web application development. Across their reviews, 100% of clients praised their exceptional project management skills and customer service, with particular emphasis on their ability to effectively communicate and educate clients. Their work, including full-stack web development and online development, is consistently described as efficient, creative, and reliable.
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$1,000+$25 - $49 / hr2 - 9Athina, Greece
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See all 3 projectsNBW Internet Wizards is a web development company specializing in Website Development and Web Design. With 100% positive feedback, clients commend their efficiency, professionalism, and exceptional customer orientation. Reviewers consistently highlight their punctuality and responsiveness, with no areas for improvement noted.
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$5,000+$50 - $99 / hr10 - 49Amsterdam, Netherlands
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See all 1 projectsRebels is a frontend development company specializing in creating optimized and reusable career pages for client platforms. Feedback highlights their expertise, collaboration, and innovative approach, with 100% of reviewers noting a positive experience and strong project impact. Clients appreciate their knowledgeable team and recommend involving them early in projects for maximum benefit.
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Undisclosed$150 - $199 / hr50 - 249Bengaluru, India
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See all 2 projectsSoftway is a web development company known for its ability to translate business goals into functional software, with expertise in technologies like Adobe Flex, HTML5, and Java. Their leadership offers a unique blend of programming and business acumen, and they maintain close client collaboration, with 100% of reviewers appreciating their innovative approach and leadership involvement.
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$1,000+< $25 / hr50 - 249Kolkata, India
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See all 2 projectsTechShu is a digital marketing agency known for its expertise in enhancing brand value and managing online reputation. The company has been praised for its responsive service and in-depth knowledge of digital strategies, with 100% of reviewers noting their impressive expertise and effective collaboration. While their campaigns have successfully increased engagement and conversions, there is a noted area for improvement in meeting timelines.
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UndisclosedUndisclosed10 - 49Athina, Greece
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See all 8 projectsQuintessential SFT is a web development company renowned for their expertise in custom website development and web design. Clients commend them for timely delivery, effective communication, and the ability to suggest impactful improvements, with over 90% of reviewers highlighting their professionalism and responsiveness. However, there are minor suggestions for improvement in meeting clarity and response times.
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$1,000+$25 - $49 / hr2 - 9
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See all 2 projectsStrowberry Code is a web development company specializing in custom website development and web design. The firm has received overwhelmingly positive feedback, with 100% of clients praising their professionalism, responsiveness, and ability to deliver tailored solutions. A recurring theme is their dedication to high-quality work and effective project management, greatly enhancing clients' online development outcomes.
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$1,000+$100 - $149 / hr2 - 9Chicago, IL
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See all 3 projectsCiffone Digital is a web development company that excels in improving online presence through custom website development and comprehensive digital marketing strategies. With 100% positive feedback, clients appreciate their proactive approach, effective project management, and strategic use of technology, which has led to enhanced user engagement and increased sales for their clients.
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$25,000+$25 - $49 / hr10 - 49Yerevan, Armenia
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See all 2 projectsELSE Team is a proficient IT company specializing in custom development, particularly in blockchain, backend, and frontend development services. The reviews indicate a 100% positive feedback, highlighting their expertise in blockchain technology, professionalism, responsiveness, and ability to deliver projects on time. Notably, 100% of reviewers appreciated their clear communication and quick delivery, underscoring a positive client experience.
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$1,000+$25 - $49 / hr2 - 9Taylor, TX
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See all 3 projectsNetUplift offers Website Development and SEO services, delivering detailed and visually appealing websites. Clients consistently praise their attention to detail, smooth project processes, and effective communication. Overall feedback highlights significant business growth post-launch and a positive working relationship, demonstrating NetUplift's capability in Web Dev and Online Development.
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$10,000+$50 - $99 / hr2 - 9Poznań, Poland
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See all 1 projectsILUXA WEB is a web development company that specializes in custom website development and full-stack web development. According to reviews, 100% of clients praise their technical skills, responsiveness, and ability to deliver tailored solutions without relying on templates. Clients report improved processing speed and usability, highlighting the company's project management and communication as very good.
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$25,000+$50 - $99 / hr10 - 49Beograd, Serbia
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See all 1 projectsGolux Technologies is a web development company specializing in custom website development, offering services such as front-end development with React.js and back-end development using Laravel PHP. Reviews highlight their adaptability and dedication, with clients noting satisfaction with their code quality and project management. However, they lack QA engineers and designers, which may limit their lead on larger projects.
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$1,000+< $25 / hr2 - 9Jaipur, India
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See all 4 projectsSpaceRocket Creations is a web development company specializing in full-stack web development, web design, and online platform development. All reviewers expressed satisfaction with their deliverables, highlighting their strong work ethic and effective project management. Notably, 100% of the feedback was positive, with clients praising their responsiveness and commitment to meeting specific project needs.
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$10,000+$25 - $49 / hr250 - 999Berlin, Germany
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See all 3 projectsFantasy Sports Solutions is a web application development company specializing in custom solutions for the fantasy sports industry. They are highly praised for their effective project management and understanding of startup needs, with over 85% positive feedback highlighting their transparency and adaptability. Some reviewers noted initial communication challenges due to language barriers, but these improved over time.
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$5,000+$50 - $99 / hr2 - 9București, Romania
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See all 1 projectsTouchSize is a design and consulting firm specializing in creating mobile-first platforms with responsive designs for desktops. Their services are highly praised, with 100% positive feedback highlighting their effective project management, timely delivery, and ongoing support. Clients appreciate the personal involvement of top management, notably Stefan, the CEO, in ensuring project success.
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$5,000+$25 - $49 / hr50 - 249Cape Town, South Africa
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See all 2 projectsThe Delta is a venture-building firm specializing in developing MVPs and commercializing businesses. Reviews highlight their speed, effective communication, and alignment with client values. A high percentage of clients commend their responsiveness and innovative approach, with significant business growth reported, such as a 4x revenue increase. However, initial service offerings' clarity could improve.
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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 Development75% JavaScript50% 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 -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% 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
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 -
$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 -
$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+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
38.2/40.018.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$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 -
$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 - 249Long Beach, 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.