Top JavaScript Developers
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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), specializes in full-stack web development, providing comprehensive services such as web and mobile app development, front-end and back-end engineering, and UI/UX design. With over 90% positive feedback, clients consistently praise their technical expertise, seamless communication, and proactive project management, attributing significant business success and operational enhancements to Digis' contributions.
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$10,000+$25 - $49 / hr50 - 249Pune, India
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See all 6 projectsNonStop io Technologies Pvt Ltd is a web development company specializing in custom website and full-stack web development, including UI/UX design, backend and frontend development, DevOps, and support. Approximately 100% of reviewers praise their timely delivery, impressive project management, and excellent communication, highlighting their adaptability to startup cultures and commitment to client needs.
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$10,000+$50 - $99 / hr10 - 49Islamabad, Pakistan
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See all 5 projectsTAK Devs Pvt Ltd is a full-stack web development company providing custom website development, web application development, and online development services. With a team growing to 40–50 members, they excel in delivering high-quality work, evidenced by 100% positive feedback from clients. Notably, their commitment and hands-on approach make them a reliable partner for complex projects.
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$5,000+$100 - $149 / hr10 - 49Nairobi, Kenya
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See all 12 projectsWebpinn is a web development company offering services such as custom website development and web application development. Reviews highlight their effective communication and impressive customer service, with 100% of clients noting positive interactions and results. Despite minor initial technical issues, Webpinn's responsiveness and support have left clients satisfied, contributing to increased traffic and sales, particularly in e-commerce solutions.
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$25,000+$150 - $199 / hr10 - 49New York, NY
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See all 10 projectsSynchronized Studio is a web development company known for its exceptional website design, front-end development, and project management. Their reviews highlight a 100% satisfaction rate, with clients appreciating their responsiveness, dedication, and ability to deliver high-quality work on time. Notably, 100% of reviewers mentioned their impressive art direction and efficient project management.
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$10,000+$25 - $49 / hr10 - 49Hamilton Township, NJ
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See all 3 projectsNodesol Corp is a web development company that specializes in custom website and web application development, offering full-stack web development services. The reviews highlight their strong project management skills, with 100% positive feedback on their timely delivery and responsiveness. Clients consistently praise their commitment to quality and innovation.
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$10,000+$25 - $49 / hr10 - 49Tallinn, Estonia
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See all 7 projectsElmoSoft is a versatile software development and test automation company, praised for its high-quality deliverables and seamless integration into client teams. With a focus on test automation and QA, they consistently meet project deadlines and requirements, as highlighted in 100% of reviews. Clients commend their technical expertise and ability to enhance product reliability and efficiency. Their value-for-cost is frequently noted as a deciding factor in selection.
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$10,000+$100 - $149 / hr10 - 49London, England
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See all 8 projectsCatch is a versatile web development company offering services such as custom website development, full-stack web development, and web application development. Across various industries, 100% of reviewers praised their strategic approach, collaborative spirit, and project management abilities. Clients consistently commend their flexibility, technical expertise, and the ability to enhance digital experiences, with no significant areas for improvement mentioned.
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$10,000+$50 - $99 / hr10 - 49Kuala Lumpur, Malaysia
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See all 5 projectsShortcut Asia is a software development company specializing in mobile and web applications, with expertise in technologies like React Native, AWS, and Ruby on Rails. They are praised for their speed, quality, and effective communication, with 100% of reviews highlighting their impressive project management and problem-solving capabilities. However, some reviews suggest improvements in scope definition and initial user story detail.
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$1,000+$25 - $49 / hr10 - 49Kharkiv, Ukraine
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See all 13 projectsITSUA is a web development company providing services such as full-stack web development, custom website development, and web application development. With overwhelmingly positive feedback, 100% of reviewers highlight their responsiveness, technical expertise, and capacity to deliver projects on time and within budget. Clients appreciate their proactive collaboration and ability to handle diverse project requirements efficiently.
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$10,000+$25 - $49 / hr10 - 49Karachi, Pakistan
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See all 16 projectsIntelligenes Inc. is a custom software and web application development company specializing in automating business processes and full-stack development, including web, mobile, and API integration. The company has received overwhelmingly positive feedback, with 100% satisfaction from clients praising their thoroughness, project management, and ability to deliver complex projects on time and within budget. Reviewers repeatedly highlight their strong communication and problem-solving skills, with 75% noting their detailed understanding and collaborative approach.
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$5,000+$25 - $49 / hr10 - 49Kolkata, India
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See all 10 projectsProperWeb Technologies Pvt. Ltd. is a web development company specializing in website and web application development, particularly using WordPress and PHP. Overall, they have received positive feedback for their effective project management and communication skills, with 85% of reviewers noting their ability to understand and execute project requirements efficiently. Customers appreciate their responsiveness and reliability in delivering custom web applications.
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$10,000+$150 - $199 / hr10 - 49Kitchener, Canada
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See all 8 projectsStryve Digital Marketing is a distinguished agency specializing in custom website development and digital marketing solutions. With a 100% positive feedback rate, clients commend their combination of creativity, professionalism, and strategic thinking. Frequently highlighted is their expertise in web design and development, as well as their disciplined project management, ensuring timely and budget-friendly delivery.
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$5,000+$50 - $99 / hr2 - 9Barcelona, Spain
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See all 12 projectsINSIDEERS is a web development firm specializing in website design and development, offering services such as custom website development and web programming. With a strong emphasis on delivering high-quality, timely results, 100% of their reviews highlight their commitment to client satisfaction and adaptability. Clients frequently commend their strong communication skills, cultural fit, and value for cost.
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$5,000+$25 - $49 / hr50 - 249
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See all 17 projectsParalect Inc. is a full-stack web development company specializing in custom website development and web application development. They consistently receive positive feedback, with 100% of reviewers highlighting their strong project management, timely delivery, and excellent communication. Clients are impressed by their professionalism and cultural fit, considering them more as partners than vendors in their collaborative efforts.
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$1,000+< $25 / hr10 - 49Surat, India
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See all 3 projectsSapient Codelabs is a full-stack web development company specializing in website development, web design, and custom website development. With a focus on responsive design and SEO optimization, 90% of reviewers praised their ability to combine technical expertise with business understanding. Clients noted their professional project management and responsiveness, though some suggested improvements in iterative feedback loops and documentation.
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$10,000+$100 - $149 / hr10 - 49King of Prussia, PA
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See all 6 projectsFynydd is a web development company known for delivering comprehensive web solutions, including custom website development and web application development. They have received consistently positive feedback from clients, with a focus on their flexibility, responsiveness, and ability to adapt to clients' evolving needs. Their project management skills and commitment to deadlines are frequently praised, and they are noted for ensuring seamless user experiences and robust online platforms, with no notable areas for improvement mentioned by clients.
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$1,000+$100 - $149 / hr2 - 9Hamilton, Canada
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See all 4 projectsCodeMasters Agency is a web development company specializing in custom website development and full-stack web development solutions. Their reviews highlight exceptional client satisfaction, with 100% positive feedback regarding their professionalism, attention to detail, and effective communication. Notably, they deliver projects that lead to increased revenue and customer engagement, showcasing expertise in web design and web programming.
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$5,000+$50 - $99 / hr10 - 49London, England
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See all 4 projectsDiversido is a full-stack web development company offering expertise in web programming and QA services, including technologies like Ruby on Rails, JavaScript, and React. The overall feedback is overwhelmingly positive, with clients praising their professionalism, communication, and commitment. However, some suggest that expanding their team could enhance their service capacity.
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$10,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 5 projectsPrixite is a software development company specializing in Custom Website Development and Full-Stack Web Development services. Their reviews reflect a strong positive sentiment, with 100% of clients highlighting their excellent project management, technical expertise, and responsiveness. Clients appreciate Prixite's commitment to quality and timely delivery, with no areas for improvement mentioned by reviewers.
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$5,000+$50 - $99 / hr2 - 9Willoughby, Australia
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See all 4 projectsAPG Software Solutions is a web development company that excels in creating custom solutions, particularly using platforms like Bubble.io. They have received overwhelmingly positive feedback, with clients praising their flexibility and ability to adapt to changing project scopes. Approximately 100% of reviewers commend their impressive project management and timely delivery.
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$5,000+$25 - $49 / hr10 - 49Rīga, Latvia
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See all 12 projectsComa Web Development is a proficient Web Development company specializing in custom website development, web design, and e-commerce solutions. Reviewers consistently praise their exceptional communication, timely project delivery, and outstanding outcomes, with approximately 95% of feedback being positive. Notably, 83% of clients highlight their value for cost and professionalism, making them a reliable partner for full-stack web development projects.
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$10,000+$150 - $199 / hr10 - 49
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See all 2 projectsEldarion is a technology company specializing in custom backend development and technical infrastructure solutions. With a 100% satisfaction rate among reviewers, clients commend Eldarion for their effective communication, project management, and ability to align with business objectives. Notably, they have been praised for delivering scalable and reliable solutions, with proactive client engagement and a strong network for additional expertise.
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$5,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 12 projectsAvocado Technology is a web development company specializing in custom website development and web design. They are praised for their creativity, responsiveness, and exceptional customer service, with clients highlighting their patience and flexibility. Notably, 100% of reviewers appreciated their creative approach to web development, although timelines could be extended due to iterative feedback processes.
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$5,000+$100 - $149 / hr10 - 49Denver, CO
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See all 4 projectsWatermark Agency is a dynamic digital marketing and web development firm, noted for its detailed project management and responsiveness. They excel in generating leads and driving brand awareness, with 100% of reviewers praising their quality work and professionalism. Reviewers frequently highlight their attention to detail and exceptional organizational skills, leading to successful project outcomes.
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$10,000+$25 - $49 / hr50 - 249Lahore, Pakistan
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See all 32 projectsBrainX Technologies is a web development company that specializes in custom website development, web application development, and full-stack web development. The company consistently receives positive feedback, with 100% of reviews highlighting their ability to deliver high-quality, functional platforms and excellent communication. Clients commend their project management and ability to meet deadlines, though some suggest greater availability during weekends and nights.
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$50,000+$50 - $99 / hr50 - 249Wrocław, Poland
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See all 11 projectsWebini is a web application development company specializing in full-stack web development and custom website solutions. Garnering 75% positive feedback, clients praise their quick delivery and technical proficiency, particularly in web programming and back-end development. However, some reviews highlight issues with project management and unfulfilled deliverables, indicating areas for improvement.
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$50,000+$150 - $199 / hr10 - 49Bellbrook, OH
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See all 2 projectsSparkbox is a full-stack web development company specializing in custom website development, front-end development, and web application development. Reviews highlight Sparkbox’s technical expertise and ability to create responsive, user-friendly websites, with 100% of feedback being positive. Clients commend their project management skills and educational approach, with 50% noting their impressive communication and collaborative efforts.
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$10,000+$50 - $99 / hr10 - 49Porto, Portugal
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See all 10 projectsColetiv is a full-stack web development company that excels in web application development, custom website development, and mobile app solutions. With a focus on efficient project management and client satisfaction, 100% of reviewers commend their expertise and ability to meet deadlines. Clients particularly appreciate their transparency and collaborative problem-solving approach, consistently leading to successful project outcomes.
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$5,000+$50 - $99 / hr10 - 49Toronto, Canada
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See all 5 projectsWEBDESK SOLUTION is a web development company specializing in custom website development and full-stack web development, particularly for e-commerce platforms. With a 100% positive feedback rate across reviews, clients praise their responsiveness, commitment to delivering promised solutions, and effective project management. Their ability to customize and implement complex web features is frequently highlighted, making them a reliable partner for online development needs.
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$5,000+$25 - $49 / hr10 - 49Chişinău, Moldova
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See all 5 projectsCreativSoft is a web development company specializing in full-stack web and mobile application development, including custom website development and complex system integrations. The company has received 100% positive feedback across all reviews, with clients commending their impressive communication, timely delivery, and alignment with company values. Their expertise in both front-end and back-end development has consistently exceeded client expectations.
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$5,000+$50 - $99 / hr10 - 49Knurów, Poland
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See all 9 projectsCoditive is a web development company specializing in custom website development, web application development, and full-stack web development services. Their reviews reflect a strong emphasis on delivering high-quality projects on time, with 100% of reviewers noting their effective project management and responsiveness. Clients consistently highlight Coditive's technical expertise and collaborative approach, with no areas for improvement identified by most.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 9 projectsTec-Sense Innovations Pvt. Ltd. is a web development company specializing in custom website development, web design, and full-stack web development services. The company is praised for its excellent communication and project management, with 100% of reviewers highlighting their responsiveness and collaborative approach. While some minor areas for improvement are noted, their commitment to quality and client satisfaction is consistently recognized.
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UndisclosedUndisclosed10 - 49Hong Kong SAR, Hong Kong
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See all 3 projects4HK is a web development company specializing in branding and custom website development. They have received positive feedback from 100% of reviewers, highlighting their ability to elevate brand aesthetics and deliver projects on time. Clients appreciate their strong communication skills and personalized service, ensuring satisfaction with both design and functionality across various platforms.
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$1,000+< $25 / hr10 - 49Ludhiana, India
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See all 2 projectsEvolvan Info Solutions Private Limited is a web development company proficient in custom website development, offering services from UI/UX design to full-stack web development. With a 100% positive feedback rate, clients commend their responsive project management and ability to enhance user engagement and traffic through effective on-page SEO and responsive design. Their work is characterized by tailored solutions and attention to client needs.
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$5,000+$100 - $149 / hr10 - 49Amman, Jordan
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See all 8 projectsQTech is a web development company specializing in full-stack web and application development services, with particular strengths in website and web application development. Reviews indicate a high level of customer satisfaction, with over 95% highlighting their quick turnarounds and professionalism. Clients frequently commend QTech's collaborative project management style and their ability to deliver tailored solutions, underscoring their adeptness in both front-end and back-end development.
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$10,000+$100 - $149 / hr10 - 49
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See all 6 projectsZephyr - Digital Marketing Agency stands out as a web development and digital marketing firm, excelling in rebranding and UX/UI design. The agency receives overwhelmingly positive feedback, with 100% of reviews highlighting timely delivery and dedication. Noteworthy is their commitment to aligning with client goals, as 100% of reviewers commend their strategic insight and immersive engagement.
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$1,000+$25 - $49 / hr50 - 249
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See all 4 projectsELITech Systems is a versatile software development company specializing in custom solutions for various industries, such as dental, appraisal, and HRMS. Across their reviews, clients consistently praise their technical expertise, excellent communication, and ability to deliver projects efficiently and cost-effectively. Impressively, 100% of the reviewers commend their speed, quality, and flexibility in project execution.
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$5,000+$25 - $49 / hr50 - 249Chiang Mai, Thailand
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See all 2 projectsManao Software is a software development company specializing in building and maintaining applications for businesses. They receive overwhelmingly positive feedback, with clients praising their professionalism, communication skills, and ability to deliver within scope and budget. Approximately 90% of reviewers highlight their seamless project management and technical competence, while minor areas for improvement include adherence to timelines.
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$1,000+$50 - $99 / hr50 - 249Katowice, Poland
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See all 15 projectsWP Kraken is a versatile web development company specializing in custom website development and web application development, particularly with WordPress. Across the reviews, clients consistently highlight their professionalism, responsiveness, and ability to deliver solutions that exceed expectations. Impressively, 100% of reviewers note positive experiences, emphasizing effective communication and strong project management skills.
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$25,000+$150 - $199 / hr10 - 49Costa Mesa, CA
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See all 1 projectsKWALL is a web design, SEO, and IT consulting company known for effectively redesigning websites and boosting traffic. In a detailed review, a client reported a threefold increase in web traffic following KWALL's involvement, emphasizing the company's adaptability and effective project management. The client also appreciated KWALL's approachable and knowledgeable team, with 100% positive feedback regarding their collaborative nature and expertise.
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$5,000+Undisclosed50 - 249Sarajevo, Bosnia and Herzegovina
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See all 3 projectsAtlantbh is a custom website development company specializing in web application development and full-stack web development. Reviews highlight their expertise in implementing business logic and creating user interfaces, with 100% of feedback being positive, emphasizing their effective communication and strong project management skills. Clients value their technical proficiency and ability to align projects with business objectives.
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$5,000+$50 - $99 / hr10 - 49Fort Myers, FL
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See all 5 projectsNorml Studio is a distinguished web development company specializing in website development, web design, and custom website development. With a 100% positive feedback rate, clients consistently highlight their strong project management, communication, and ability to deliver high-quality, reliable web solutions that enhance branding and user engagement. Their commitment to scalability and seamless integration into client workflows is particularly noted.
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$25,000+$25 - $49 / hr10 - 49München, Germany
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See all 9 projectsInfoleven GmbH is a proficient web development company that excels in Full-Stack Web Development and Custom Website Development. Their clientele praises their effective project management and timely delivery, with 100% positive feedback highlighting their honest communication and attention to detail. Infoleven is notably skilled in integrating complex web solutions such as CMS and e-commerce platforms without issues.
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$5,000+$50 - $99 / hr2 - 9Beograd, Serbia
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See all 15 projectsEximius Solutions is a web development company specializing in custom website and web application development, including front-end and back-end solutions. The company consistently receives positive feedback for its professionalism, reliability, and high-quality deliverables, with approximately 100% of reviews highlighting their expertise and timely project completion. Their commitment to delivering seamless user experiences and robust, scalable web solutions is frequently praised by clients.
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$10,000+$25 - $49 / hr10 - 49Białystok, Poland
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See all 4 projectsDektry is a web development company specializing in Full-Stack Web Development and Front-End Development. With 100% positive feedback, clients praise Dektry's high-quality solutions, excellent communication, and seamless integration into teams. They consistently deliver reliable, detail-oriented services, and are recognized for their problem-solving skills and ability to meet deadlines efficiently.
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$1,000+$25 - $49 / hr10 - 49
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See all 3 projectsCHYRKOV studio is a web development company known for its expertise in enhancing website usability and design. With a strong focus on custom website development and web programming, 100% of the feedback highlights their professionalism, timely delivery, and effective communication, resulting in a 20% sales increase and improved order processing efficiency.
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$5,000+$25 - $49 / hr10 - 49Calgary, Canada
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See all 24 projectsDesigno Graphy is a comprehensive web development company specializing in custom website development, web design, and online development services. The company receives consistently positive feedback, with 100% of reviewers praising their project management and accommodating approach. Clients highlight their ability to build professional websites and enhance digital presence, emphasizing their attention to customer needs and timely delivery of projects.
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$50,000+$100 - $149 / hr2 - 9
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See all 4 projectsDusseau and Company is a Web Development firm specializing in Web Application Development and Custom Website Development. They are praised for their responsiveness and adaptability, with 100% positive feedback from clients who appreciate their ability to efficiently implement software changes and handle ongoing development needs. Reviewers highlight their effective communication and project management skills.
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$10,000+$25 - $49 / hr10 - 49Bratislava, Slovakia
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See all 7 projects8BITES.CO is a web development company excelling in custom website development, web design, and web application development. Across multiple reviews, 100% of clients praised their effective communication, timely delivery, and expertise. Notably, 80% highlighted their ability to understand and fulfill client needs with innovative solutions, while maintaining high professional standards and customer satisfaction.
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$5,000+$25 - $49 / hr250 - 999India
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See all 1 projectsCedCommerce is a web development company specializing in improving website aesthetics and speed, as demonstrated by their work with an online guitar and bass gear store. With a focus on effective project management and responsiveness, 100% of the feedback highlights their pleasant collaboration and the quality improvements made to the client’s website.
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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.