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 / hr250 - 999Dubai, United Arab Emirates
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See all 4 projectsIPIX Technologies is a web development company specializing in Website Development, Web Design, and Web Programming services. With a focus on creating user-friendly and visually appealing websites, they have garnered positive feedback from clients, with over 85% of reviews praising their responsiveness and efficiency. Clients appreciate their punctuality and project management, though some suggested improvements in communication and cost efficiency.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsSynthesis Technology is a web development company specializing in creating websites using platforms like Office 365 and SharePoint Intranet. Reviews reflect a 100% positive sentiment, highlighting their dedication, accessibility, and exceptional customer service. Clients commend their attention to detail and ability to exceed expectations, with no noted areas for improvement.
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$25,000+$150 - $199 / hr2 - 9
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See all 1 projectsDigital Bird is a web development company specializing in front-end and back-end services, including full-stack web development and web design. Clients commend their exceptional communication skills and high-quality work, with 100% positive feedback highlighting their expertise and ability to deliver flexible, well-designed web platforms that evolve with business needs.
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$1,000+< $25 / hr10 - 49
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See all 3 projectsJS Tigers - Software Development is a web development company proficient in back-end development and web application development. They have received overwhelmingly positive feedback, with 100% of reviewers praising their responsiveness and ability to understand client needs. Clients appreciate their efficient project management and ability to automate processes, which helps businesses remain competitive.
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$1,000+< $25 / hr50 - 249Indore, India
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See all 2 projectsLean Artists is a mobile app development company that specializes in creating Android and iOS applications. Their overall feedback is highly positive, with customers praising their ability to deliver quality products promptly and efficiently. Approximately 100% of reviewers express satisfaction with their communication and project management skills, noting their use of WhatsApp and email for consistent updates.
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$1,000+$25 - $49 / hrFreelancer
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See all 3 projectsSadik Shaikh is a web development company specializing in custom website development, evidenced by their hands-on approach and efficient project management. With 100% positive feedback, clients commend their ability to deliver projects ahead of schedule and their consistent problem-solving support.
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$5,000+$25 - $49 / hr50 - 249Noida, India
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See all 5 projectsRemoteState specializes in Website Development, Web Design, and Web Programming, offering tailored solutions for supply chain management. Reviews highlight their strong domain knowledge and adherence to project timelines, reflecting a commitment to delivering high-quality web-based and app development services. Clients appreciate their agile project management and the alignment of company values, with no significant areas for improvement mentioned.
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$1,000+$50 - $99 / hr2 - 9Olhos de Água, Portugal
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See all 2 projectsDIGIPIV - MARKETING COACHING is a dynamic web development and marketing company, excelling in website development, web design, and social media strategy. They received 100% positive feedback, with clients praising their ability to meet unique requirements and deliver immediate results, such as increased site visits and social media engagement. Their tailored approach and proactive communication are particularly noteworthy.
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$25,000+$50 - $99 / hr10 - 49Stoke-on-Trent, England
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See all 3 projectsAware Digital is a web development company specializing in custom website development, ongoing support, and maintenance. With positive feedback from 100% of reviewers, clients commend their proactive approach, solid project management, and expertise in front-end and back-end development. While some delays in ticket resolution were noted, clients appreciate their excellent communication and commitment to driving website success.
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$5,000+$25 - $49 / hr10 - 49Melbourne, Australia
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See all 2 projectsUpscalix is a web development company specializing in Website Development and Web Application Development. Feedback is consistently positive, highlighting their effective project management and timely delivery, with 100% of reviewers noting satisfaction with project outcomes. Clients report significant improvements, such as a 50% increase in website interactivity and a 70% rise in new job bookings.
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$5,000+$25 - $49 / hr10 - 49Santiago de Querétaro, Mexico
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See all 5 projectsBrounie is a web development company specializing in custom website development, web design, and web application development. With 100% positive feedback from reviewers, they are praised for their proactive communication, timely delivery, and innovative solutions. Clients appreciate their ability to adapt to unique project needs and the quality of their deliverables, resulting in increased website traffic and improved user experience.
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$50,000+$50 - $99 / hr250 - 999
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See all 2 projectsFacilité Informatique Canada inc. is a web development company specializing in full-stack web development and web application development. Their collaboration with the National Bank of Canada highlights their capability to manage complex projects, although there is room for improvement in software engineering practices. Approximately 85% of the feedback is positive, emphasizing their cost-effectiveness and project management skills.
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$50,000+$200 - $300 / hr10 - 49New York, NY
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See all 1 projectsBlenderbox is a web development company known for its exceptional project management and dedication from senior leadership. They excel in creating user-friendly, mobile-first website designs, as evidenced by positive user feedback and increased web traffic. Approximately 100% of the feedback highlights their professionalism, attention to detail, and strong leadership as standout qualities.
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$1,000+< $25 / hr2 - 9
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See all 12 projectsWebperts is a web development company specializing in custom website development, web design, and online development. Across their reviews, 100% of clients express satisfaction, highlighting their excellent communication, responsiveness, and ability to deliver complex projects such as customizable online systems and optimized websites. Clients appreciate their understanding of project needs and timely completion without requests for extensions.
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$10,000+$50 - $99 / hr10 - 49Singapore
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See all 4 projectsPengYi Labs is a UI/UX design company known for its exceptional responsiveness and communication skills, praised by 100% of reviewers. Specializing in creating UI mockups, wireframes, and app designs, they consistently deliver high-quality work on time, with no significant areas for improvement noted. Their adaptability and ability to integrate into client teams have contributed to successful project outcomes across various industries.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 1 projectsExpoders Solutions is a software development company specializing in project management systems. They have received overwhelmingly positive feedback, with 100% of clients praising their cost-effectiveness and reliability, and their system achieving over 99% reliability. Reviewers consistently highlight their efficiency, attention to detail, and strong communication skills, with a notable emphasis on affordability and trustworthiness.
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$10,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 11 projectsTechKopra Solutions is a versatile Web Development company specializing in Custom Website Development and Full-Stack Web Development, among other digital solutions. The firm consistently receives positive feedback, with 100% of reviewers highlighting their exceptional project management, technical expertise, and ongoing support. Clients appreciate their commitment to deadlines and innovative solutions, fostering long-term partnerships.
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$5,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 2 projectsSWAAM Tech is a web development company known for its comprehensive Website Development and Web Programming services. Clients appreciate their timely deliverables, with 100% of reviewers highlighting their effective communication and ability to understand business needs. The company's expertise ensures projects are well-managed and align with client objectives.
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$1,000+< $25 / hr10 - 49
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See all 2 projectsDeerada is a web development company known for delivering high-quality, custom website development services. Their clientele appreciates their unique web design skills and efficient project management, with 100% of reviewers highlighting their timeliness and quality work. Deerada specializes in creating corporate sites that are both visually appealing and user-friendly, ensuring comprehensive client satisfaction.
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$50,000+$50 - $99 / hr10 - 49Cluj-Napoca, Romania
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See all 1 projectsDood Software is a web development company specializing in full-stack web development and web application development. With a team composed mainly of experienced senior developers, they are praised for their professionalism, innovative technical solutions, and effective project management. Over 90% of the feedback highlights their ability to meet deadlines and deliver high-quality results, making them a reliable partner for large-scale projects.
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$10,000+$50 - $99 / hr2 - 9Cluj-Napoca, Romania
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See all 2 projectsThe Big Byte is a software development company known for its expertise in handling complex projects and delivering high-quality software solutions. Clients appreciate their ability to quickly understand requirements and meet project objectives with 100% satisfaction in quality, budget, and timeline. Approximately 50% of reviewers highlight their excellent project management skills, though some suggest a balance is needed to prevent overemphasis.
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$1,000+$25 - $49 / hr10 - 49Ghaziabad, India
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See all 2 projectsTechtonic Enterprises Pvt. Ltd. is a web development company specializing in full-stack web development, custom website development, and web application development. Their reviews highlight a 100% positive feedback rate, with clients praising their technical expertise, client-centric approach, and proactive solutions, resulting in enhanced online presence and user engagement. Notably, 40% of reviewers emphasize their impressive project management and timely delivery.
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$25,000+$50 - $99 / hr10 - 49Kraków, Poland
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See all 22 projectsUltimate Systems is a dynamic web development company specializing in custom website development, web application development, and full-stack web development services. Their reviews reflect a consistently high level of client satisfaction, with 100% positive feedback highlighting their exemplary project management, technical expertise, and ability to deliver on time. Clients frequently commend their effective communication and flexibility in adapting to project needs.
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$25,000+$25 - $49 / hr50 - 249
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See all 12 projectsQubit Labs is a web development company specializing in back-end and front-end development, serving as an extension of internal teams. The company is praised for its agility, swift communication, and ability to quickly provide quality candidates, with 100% of reviewers noting these strengths. While a growing company, minor legal and financial processing delays were noted but have been resolved.
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$5,000+$25 - $49 / hr10 - 49Vinnytsia, Ukraine
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See all 3 projectsEvenmore is a web development company specializing in front-end development, with expertise in transitioning frameworks and managing complex projects in sectors like crypto and finance. The reviews highlight their top-quality deliverables and quick problem-solving skills. Impressively, 100% of the feedback reflects satisfaction with no noted areas for improvement.
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$5,000+< $25 / hr10 - 49Karachi, Pakistan
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See all 2 projectsPrimech Agency is a web development company specializing in UI/UX design and full-stack web development services. They consistently deliver projects on time and within budget, with 100% of reviewers praising their technical skills and proactive communication. While the overall feedback is highly positive, 20% suggest more frequent project updates for improved visibility.
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$1,000+$50 - $99 / hr2 - 9
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See all 1 projectsEmpuls3 is a full-stack web development company specializing in custom website development, web design, and digital marketing solutions. They consistently exceed client expectations, as evidenced by 100% positive feedback, with clients highlighting their professionalism, effective project management, and attention to detail. Notably, 100% of reviewers mentioned significant improvements in their digital marketing presence and client lead generation after collaborating with Empuls3.
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$5,000+$25 - $49 / hr10 - 49Warszawa, Poland
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See all 3 projectsMaxyLogic is a software development company specializing in mobile app development, with expertise in Flutter and native Android frameworks. Across their reviews, 100% of clients mentioned their strong communication skills, while 66% noted their adeptness at project management. Clients appreciate their ability to meet deadlines and deliver quality work, though some suggest improvements in the onboarding process and strategic foresight.
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$25,000+$50 - $99 / hr10 - 49Buenos Aires, Argentina
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See all 3 projectsIMPRONTA IT is a software development company specializing in the development, modeling, and updating of GIS solutions. Reviews highlight their expertise in Web Programming and Custom Website Development, with a strong focus on user satisfaction. They are commended for delivering impactful applications and seamless integration with other platforms, though some suggest improving documentation. Overall, feedback is predominantly positive.
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$5,000+$25 - $49 / hr10 - 49Poznań, Poland
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See all 2 projectsinnovAgile is a software development company that excels in creating Cloud-based systems and offering software development support, particularly for API-first platforms. Approximately 100% of reviewers commend their high-quality work and responsiveness. Clients appreciate their professionalism and adaptability, though improvement in design aesthetics is suggested. Overall, innovAgile is recognized for its commitment to meeting client needs and maintaining efficient communication.
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$10,000+$25 - $49 / hr10 - 49Bucha, Ukraine
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See all 2 projectsFuture Proof Technology is a technology consulting and software development firm known for its exceptional project management and technical expertise. The company has received 100% positive feedback, with clients praising their communication, dedication, and ability to deliver high-quality solutions on time. Approximately 50% of reviewers highlight their proactive approach and strategic partnership value.
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$5,000+$25 - $49 / hr10 - 49Newcastle, Ireland
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See all 1 projectsDMC Consultancy is a web development company known for creating custom website solutions and handling web programming projects. With 100% positive feedback in reviews, clients commend their professionalism and ability to meet timelines effectively. Their work, including logo design and web development, receives significant praise for quality and impact.
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Undisclosed$50 - $99 / hr10 - 49Karlsruhe, Germany
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See all 4 projectsStudio Present is a web development company specializing in custom website development and web design services. Their clients frequently praise their responsiveness, openness to new ideas, and expertise in web design. Reviews highlight a 97% increase in average session time for Boss Caffe, demonstrating significant positive impact, with no notable negative feedback observed. Studio Present effectively manages projects with transparent communication and attention to detail.
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$10,000+$50 - $99 / hr10 - 49Sacramento, CA
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See all 3 projectsDr Developers is a web development company renowned for its expertise in Website Development and Custom Website Development. With 100% positive feedback, clients commend their professionalism, creativity, and the young, energetic team. Reviewers highlight their effective project management and impressive deliverables, though some suggest on-site staff training improvements.
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$1,000+$50 - $99 / hr2 - 9
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See all 2 projectsProject Rebel, operating under the name Rebel WordPress, is a web development company specializing in creating custom websites that reflect clients’ visions while allowing for future flexibility. The feedback highlights the team's professionalism, responsiveness, and ability to meet client needs, with 100% of reviews emphasizing their unique, client-centered approach and effective communication. However, affordability can be a concern for new businesses.
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$1,000+$25 - $49 / hr2 - 9Marrakech, Morocco
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See all 1 projectsELBAHI.NET is a comprehensive web development company specializing in Website Development, Mobile Application Development, and UI/UX Design. The company's clients report a high level of satisfaction, with 100% of reviews highlighting their impressive design skills and client engagement. ELBAHI.NET's work has significantly increased web traffic, demonstrating their effectiveness in delivering quality online development solutions.
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$5,000+$50 - $99 / hr2 - 9Surry Hills, Australia
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See all 5 projectsWebhouse is a web development company specializing in web design and custom website development. They consistently receive positive feedback, with approximately 95% of reviewers highlighting their exceptional user interface and experience design skills. Clients appreciate their responsiveness, efficient project management, and ability to understand and align with business goals, resulting in increased user engagement and streamlined management systems.
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$1,000+$25 - $49 / hr2 - 9Khmelnytskyi, Ukraine
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See all 1 projectsIvory Web Studio is a custom WordPress development company praised for its superior design sensibility and responsiveness. Offering design and website updates, they have successfully increased client visits or conversions by at least 50%. Reviewers highlight their effective communication and adaptability, with minimal criticism noted, reflecting a largely positive customer experience.
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$10,000+$25 - $49 / hr50 - 249Wixom, MI
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See all 2 projects4-Serv Solutions Inc is a web development company specializing in custom website development and web application development. Their clients commend their ability to deliver projects efficiently, with 100% of reviews highlighting their expertise in building dynamic and scalable applications. Reviewers frequently note their effective communication and collaboration, making them a reliable partner for complex web programming needs.
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$25,000+< $25 / hr50 - 249Ha Noi, Vietnam
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See all 5 projectsAgileTech Viet Nam is a mobile app development company that specializes in creating user-friendly applications using technologies like React Native and Flutter. The company is praised for its technical expertise, proactive communication, and ability to deliver projects on time. With approximately 66% of reviewers highlighting their impressive project management and adaptability, AgileTech Viet Nam is a reliable partner for developing innovative mobile solutions.
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$1,000+$100 - $149 / hr2 - 9
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See all 1 projectstrustmarketing.pl is a web development company known for its expertise in website design and custom website development. With 100% positive feedback, reviewers highlight their effective communication, professional workflow, and innovative solutions. Collaborators praised their thorough project documentation, which facilitated seamless design implementation.
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$1,000+< $25 / hr2 - 9Cairo, Egypt
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See all 2 projectsCupid Solutions is a full-stack web development company specializing in web development, web design, and custom website development. Approximately 90% of reviews highlight their timely delivery and innovative approach, with clients appreciating their detailed timelines and responsiveness. However, 10% suggest improvements in resource allocation and transparency on potential roadblocks.
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$10,000+$100 - $149 / hr10 - 49Austin, TX
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See all 8 projectsCodesmen LLC is a web development company that specializes in creating custom platforms and digital marketplaces. With a strong focus on full-stack web development, they have garnered positive feedback from clients, with approximately 100% praising their responsiveness, adaptability, and quality. Clients frequently commend their project management skills and ability to exceed expectations in design and functionality.
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$5,000+$25 - $49 / hr50 - 249
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See all 3 projectsWEB SHINE TECH is a proficient web development company specializing in web design and custom website development. With 100% positive feedback, clients praise their quick response rates, professionalism, and effective project management. While their services significantly impact client businesses, one suggested improvement is to modernize the website design.
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$1,000+< $25 / hr10 - 49Liverpool, Australia
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See all 2 projectsDigitalrooar specializes in Website Development, Web Design, and digital marketing services. Clients commend their impressive website designs, effective project management, and the positive impact on business outcomes, such as increased sales and lead generation. Their knowledgeable and responsive team consistently delivers budget-friendly solutions tailored to clients' needs.
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$1,000+$25 - $49 / hr2 - 9
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See all 8 projectsDeKnows is a web development company specializing in custom website development, full-stack web development, and web programming services. Across their reviews, DeKnows is consistently praised for their exceptional project management, responsiveness, and ability to deliver projects on time, often exceeding client expectations. A notable 100% of reviewers commend DeKnows for their communication and problem-solving skills, with no significant areas for improvement identified.
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$10,000+$25 - $49 / hr50 - 249Bellevue, WA
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See all 1 projectsVirtuosity Consulting is a consultancy firm specializing in providing program managers and developers to streamline release processes for enterprises. The company receives overwhelmingly positive feedback, with clients highlighting their ownership of projects, flexibility, and seamless integration as an extension of the team. Nearly all reviewers emphasize their excellent service quality and adaptability to changing demands.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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See all 11 projectsHashtag Developer is a web development company specializing in custom website development, web design, and full-stack web development. They consistently deliver projects on time and within budget, with 100% of reviews highlighting their effective communication and understanding of client needs. Their professionalism and ability to exceed expectations are frequently praised, although some clients suggest expanding their service offerings.
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$10,000+$50 - $99 / hr10 - 49
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See all 2 projectsSather Development is a web development company specializing in custom website development, web design, and conversion rate optimization. The reviews highlight an impressive 18% increase in onsite conversions and a dramatic reduction in site load time from 6.7 to 1.4 seconds. Clients appreciate their agile project management and prompt communication, with no negative feedback mentioned.
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Undisclosed$25 - $49 / hr10 - 49Barranquilla, Colombia
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See all 9 projectsMuto Digital Studio is a web development company specializing in website creation, design, and technical support. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their timely delivery, professionalism, and ability to align with clients' needs. Clients commend their impressive creativity, effective communication, and excellent value for cost, making Muto Digital Studio a dependable choice for custom website development and full-stack web development projects.
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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.