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 89 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development firm specializing in full-stack and custom website development. Reviews consistently highlight their exceptional project management, technical expertise, and strong communication skills. Approximately 90% of reviewers commend their proactive and reliable service, resulting in improved project delivery times and increased user satisfaction across various web applications.
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$1,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 2 projectssol.agency is a web development company specializing in front-end and back-end website development, brand identity creation, and online advertising. Feedback highlights their ability to consistently deliver projects on time, with 100% of reviewers praising their professionalism and collaboration. Some suggest minor improvements in communication, but overall satisfaction is high.
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$5,000+$50 - $99 / hr50 - 249Ahmedabad, India
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See all 2 projectsWebCodeGenie Technology Pvt. Ltd. is a versatile web development company specializing in Web Design, Custom Website Development, and Full-Stack Web Development across various platforms like Laravel, WordPress, and PHP. With 100% client satisfaction and commendable project management, they are praised for exceeding expectations and having a flexible team structure that efficiently allocates skilled developers to meet project needs.
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$1,000+$25 - $49 / hr2 - 9L'viv, Ukraine
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See all 4 projectsEssencive Agency is a web development company known for its expertise in website development and design. Clients, such as a SaaS product developer, praise their effective communication and high-quality work, with 100% of reviewers noting timely delivery and responsiveness to additional requests. Essencive Agency's competitive pricing and efficient project management are frequently highlighted as key strengths.
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$1,000+$100 - $149 / hr2 - 9Akron, OH
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See all 3 projectsWaking Digital is a web development company specializing in SEO and online development services. They are recognized for their attention to detail and expertise, with 100% of reviewers noting timely delivery and responsiveness. Clients report a significant improvement in search engine visibility, with monthly impressions increasing by 400% within two months.
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$5,000+Undisclosed10 - 49Buenos Aires, Argentina
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See all 3 projectsPortinos Digital Agency is a reputable company specializing in Web Development and Web Design services. Known for their collaborative approach, they have successfully modernized brand identities and developed scalable, multilingual websites. With 100% positive feedback, 100% multilingual coverage, and a focus on clear communication and client autonomy, they effectively meet project timelines and client needs.
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$5,000+$25 - $49 / hr10 - 49London, England
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See all 1 projectsWazobia Technologies is a web development company specializing in custom website development and full-stack web development. The reviews highlight their exemplary standards, flexibility, and seamless integration with the client's team. 100% of feedback is positive, emphasizing their excellent project completion times and effective communication, with no areas for improvement noted.
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$1,000+< $25 / hr10 - 49Panchkula, India
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See all 3 projectsArtzen Technologies is a web development company specializing in website development and enhancement for online stores. The reviews indicate a high level of customer satisfaction, with 100% of reviewers praising their efficiency, technical expertise, and timely delivery of results. Clients appreciate their ability to increase sales and their proactive approach to problem-solving.
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$5,000+$25 - $49 / hr2 - 9Poznań, Poland
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See all 2 projectsPluscode specializes in Website Development and Web Design, consistently delivering exceptional website layouts and functionality. Client feedback highlights their meticulous approach, timely project management, and strong communication skills, emphasizing their commitment to achieving the best possible outcomes and customer satisfaction.
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$10,000+$50 - $99 / hr2 - 9Cape Town, South Africa
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See all 1 projectsLightstack is a mobile app development company recognized for its expertise in simplifying complex processes through technology, particularly in the legal sector. Their clients appreciate the team's transparency, communication, and collaborative approach, with 100% of reviewers highlighting a positive working relationship. While clients foresee growth, they emphasize the importance of maintaining their high service standards.
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$10,000+$50 - $99 / hr2 - 9București, Romania
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See all 1 projectsAppes is a web development company specializing in front-end development and platform enhancement. The overall feedback is overwhelmingly positive, with 100% of reviews highlighting their effective project management, adaptability, and proactive approach. Notably, 23% user retention increase underscores their impactful work, with clients praising their communication skills and seamless integration with existing teams.
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$1,000+$100 - $149 / hr2 - 9Boise, ID
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See all 1 projectsIdaho Style is a web development company specializing in website development and search engine optimization. Their services are highly appreciated, with reviewers highlighting their responsive communication and willingness to accommodate client needs. Notably, 100% of reviewers praised their project management and effective communication.
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$5,000+$25 - $49 / hr50 - 249Kolkata, India
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See all 3 projectsSynergic Softek Solutions is a versatile software development company specializing in customized web solutions and app development. Overall, the feedback is overwhelmingly positive, with clients praising their efficiency, effective communication, and reasonable costs. Approximately 100% of reviewers mention their reliability and willingness to engage in collaborative problem-solving. The company is noted for delivering precise customizations and maintaining strong project management practices.
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$10,000+$50 - $99 / hr10 - 49London, England
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See all 7 projectsCircle Square is a versatile technology solutions provider offering tailored software development services, including front-end and back-end development, MVP creation, and platform integration. Clients consistently highlight Circle Square’s rapid delivery, problem-solving aptitude, and effective communication, with over 90% of feedback being positive. Noteworthy is the company’s ability to deliver projects on time and within budget, along with a proactive approach to client collaboration and innovative solutions.
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$10,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 3 projectsDigiArtisan is a web development company specializing in website design and coding. With a strong emphasis on customer service and flexibility, they consistently deliver projects on time and within budget. All reviewers expressed satisfaction, highlighting the company's excellent performance and value for cost.
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$5,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 6 projectsRebel Trail Web Solutions is a web development company specializing in custom website development and web application development. Client reviews highlight their excellent project management and communication skills, with 100% positive feedback on these aspects. Customers praise their expertise in delivering custom solutions and seamless integration with existing systems, although some suggest expanding in-house service offerings.
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$1,000+$50 - $99 / hr2 - 9
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See all 1 projectsElite Web Design is a web design company renowned for crafting visually appealing and high-converting websites. Feedback highlights impressive communication and efficient workflows, with 100% of reviewers noting a significant increase in conversion rates, such as a 25% rise, underscoring their effectiveness in achieving project goals.
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Undisclosed$50 - $99 / hr10 - 49Altrincham, England
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See all 10 projectshref Agency is a web development company known for delivering custom website solutions, including Web Design, Front-End and Back-End Development. Receiving overwhelmingly positive feedback, with approximately 100% of reviews highlighting their efficiency, communication, and ability to produce high-quality work on time, they are praised for their technical expertise, cultural fit, and value for money.
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$1,000+$50 - $99 / hr10 - 49Clarinda, Australia
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See all 1 projectsMitash Digital is a web development company that specializes in custom website development and e-commerce solutions. Reviews highlight their responsive team and effective project management, with 100% of clients noting timely problem resolution. While clients appreciate their technical expertise, they suggest improvements in detailed reporting of technical issues. Overall, Mitash Digital demonstrates a commitment to client satisfaction and project success.
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$10,000+$50 - $99 / hr2 - 9Montevideo, Uruguay
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See all 5 projectsataraxy is a web development company specializing in custom website development and web application development. They receive overwhelmingly positive feedback, with 100% of reviewers highlighting their responsive project management and ability to align with client goals. Notably, ataraxy's proficiency in full-stack web development and their proactive problem-solving skills consistently impress clients.
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$1,000+$50 - $99 / hr2 - 9Ware, England
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See all 3 projectsHeavy Penguin is a web development company specializing in custom website development and web design. Reviews highlight their effective communication and industry expertise, with 100% of clients expressing satisfaction with their projects. Clients commend their ability to tailor solutions, resulting in increased user visits and positive customer feedback.
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$5,000+$50 - $99 / hrFreelancerRzeszów, Poland
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See all 5 projectsPROGMATIQ is a web development company specializing in Website Development and Web Design, emphasizing custom solutions and responsive design. Client feedback highlights their professionalism, communication, and attention to detail, with a 100% satisfaction rate across reviews. Many clients praised their project management skills and technical expertise, particularly their ability to meet deadlines and provide ongoing support.
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$10,000+$50 - $99 / hr10 - 49Recife, Brazil
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See all 3 projectsMobix Software Studio is a versatile software development company known for its expertise in digital transformation, strategic guidance, and mobile app development. The company has received overwhelmingly positive feedback, with clients highlighting their effective project management, commitment, and comprehensive knowledge in technology and innovation. Approximately 100% of reviewers praised their problem-solving capabilities and seniority in software engineering.
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$10,000+$50 - $99 / hr10 - 49L'viv, Ukraine
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See all 3 projectsDapplica is a web development company specializing in EOSIO blockchain projects, providing services in full-stack web development, including web programming and custom website development. One hundred percent of the feedback highlights their satisfactory project management, adaptability, and proficiency in handling complex technologies, with no areas for improvement identified.
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$1,000+$25 - $49 / hr10 - 49
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See all 3 projectsAstute Myndz is a web development company specializing in full-stack web development and web application development. Clients commend their efficient project management, excellent communication, and willingness to adapt to feedback, with 100% of reviewers praising their responsiveness and quality of work. Their ability to enhance user engagement and implement custom features is highly appreciated by clients.
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$10,000+$100 - $149 / hr2 - 9London, England
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See all 1 projects11:11 Studio is a web development company specializing in custom website development and web design. Reviews highlight their ability to deliver stable, functional websites and their exceptional project management skills. They are praised for their efficiency, technical fluency, and ease of collaboration, with 100% positive feedback indicating they understood client needs and exceeded expectations.
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$1,000+$25 - $49 / hr2 - 9San Salvador, El Salvador
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See all 4 projectsARGOsoft Group is a web development company specializing in Website Development, Web Design, and Full-Stack Web Development. Across various projects, clients consistently praise their professionalism, timely delivery, and adaptability. Notably, 100% of reviewers commend their project management and customer service, citing excellent communication and a proactive approach. Clients appreciate their ability to exceed expectations and provide quality service, driving measurable outcomes like increased customer engagement and improved turnover.
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$1,000+$50 - $99 / hr10 - 49Thenhipalam, India
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See all 6 projectsMidnay is a proficient web development company specializing in custom website development, web application development, and front-end and back-end development. Client feedback consistently highlights their efficient project management, professionalism, and ability to deliver high-quality, bug-free websites on time. Approximately 100% of the reviewers commend their understanding of client needs and dedication to project success.
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$5,000+$50 - $99 / hr10 - 49Odesa, Ukraine
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See all 1 projectsA-Devgroup is a web development company specializing in custom website development and online booking systems. The reviews indicate a 100% positive feedback, highlighting their professionalism, effective communication, and attention to detail. Notably, 100% of reviewers praised their responsiveness and ability to deliver projects on time.
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UndisclosedUndisclosed50 - 249
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See all 2 projectsDesign Alligators is a web development company specializing in custom website development, with a focus on creating brand-aligned web designs and custom WordPress builds. The feedback is overwhelmingly positive, with approximately 100% of reviewers praising their responsive project management and ability to capture the client's brand essence. Clients note the company's strategic approach and effective online presence development.
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$1,000+$100 - $149 / hr2 - 9Zürich, Switzerland
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See all 4 projectsPixels & Coconuts specializes in Website Development and Custom Website Development, providing services such as Full-Stack Web Development with a focus on Web Design and Web Programming. The company has received 100% positive feedback, with clients praising their outstanding communication and timely delivery. Approximately 90% of reviewers highlight their professionalism and unique collaborative approach.
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$25,000+$50 - $99 / hr50 - 249Riyadh, Saudi Arabia
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See all 2 projectsSharedTech is recognized for its expertise in Website Development and Web Design, offering services that include developing web portals with a focus on user experience (UX) design. The reviews highlight their professional project management, timely delivery, and ability to provide good value for cost, reflecting high customer satisfaction and usability.
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$10,000+$25 - $49 / hr250 - 999Pune, India
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See all 2 projectsThinkitive Technology Pvt Ltd is a proficient web development company, excelling in Full-Stack Web Development and Web Application Development. Their adaptability and technical competence are highly praised, with consistent delivery on budget and timeline targets. While 100% of reviewers commend their transparency and commitment, improvements in DevOps and release management are suggested.
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$5,000+$50 - $99 / hr2 - 9Kyiv, Ukraine
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See all 4 projectsQPMSoft is a web development company excelling in Web Application Development and Custom Website Development. Reviewers commend their strong project management and communication skills, with 100% positive feedback highlighting timely delivery and effective problem-solving. Approximately 90% of reviews emphasize their proficiency in integrating complex systems and handling challenges efficiently.
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$10,000+$50 - $99 / hr10 - 49Novi Sad, Serbia
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See all 1 projectsSpawn Solutions is a digital platform development company specializing in creating comprehensive solutions for streamlining business processes. According to reviews, 100% of feedback highlights their exceptional project management, professionalism, and innovative problem-solving approach. Their ability to tailor solutions to unique business needs while maintaining clear communication and responsiveness is highly commendable.
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$1,000+$100 - $149 / hr2 - 9Chicago, IL
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See all 5 projectsSimply Smart Technology is an IT managed services company known for its responsive and comprehensive IT solutions. They consistently receive positive feedback, with clients highlighting their expertise, project management skills, and flexibility. Approximately 80% of reviewers emphasized their prompt responsiveness and ability to adapt to client needs. Their customer-centric approach and effective communication have left clients impressed with their ability to manage IT environments efficiently.
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$5,000+$25 - $49 / hr10 - 49Bratislava, Slovakia
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See all 3 projectsTechband is a Web Development company specializing in both Front-End and Back-End Development, offering services such as Custom Website Development and Web Application Development. Reviews indicate a high satisfaction rate, with 100% of clients praising their rapid project delivery and strong e-commerce expertise. Clients also commend their cultural fit and effective communication.
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$1,000+$25 - $49 / hr50 - 249Hyderabad, India
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See all 2 projectsMicroPyramid is a full-stack web development company that excels in both front-end and back-end development, as evidenced by their comprehensive redesign of an online music lesson website. Overall, the reviews highlight their effective project management and prompt communication, with 100% of reviewers praising the improved user experience and functionality of their website solutions.
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$5,000+$100 - $149 / hr2 - 9
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See all 10 projectsColour And Code is a web development company offering services in website design, custom website development, and SEO optimization. Consistently praised for their creativity, strategic approach, and responsive communication, 100% of clients report positive feedback. Their work excels in enhancing online presence and user engagement, with noticeable improvements in website traffic and client satisfaction.
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$25,000+$100 - $149 / hr50 - 249Houston, TX
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See all 4 projectsAdcetera is a professional web development company that excels in Web Design and Web Programming, as highlighted by their successful website refresh project. Reviews indicate 100% positive feedback, with clients noting increased web traffic and praising Adcetera's cultural fit and effective project management.
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$1,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 4 projectsRamlogics Technosoft Pvt. Ltd. is a web development company specializing in custom website development, web application development, and SEO. Reviewers commend their high-quality work and effective project management, with 100% expressing satisfaction. A recurring theme is the excellent value for money they provide, although clear communication is emphasized due to minor language barriers.
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$1,000+$25 - $49 / hr10 - 49
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See all 2 projectsOscar Studio is a web development company specializing in custom website development and web application development. Reviews highlight their commitment to client needs, proactive communication, and high-quality output, with 100% of reviewers expressing satisfaction with their work. However, 100% also noted the absence of an in-house designer as a potential area for improvement.
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$25,000+$50 - $99 / hr10 - 49L'viv, Ukraine
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See all 1 projectsUkiepro is a web development company that specializes in creating functional and user-friendly websites. With a focus on professional service, they successfully revamped a platform's design and integrated payment processing, doubling the client's revenue. Reviews highlight their professionalism and adaptability, although clear communication of project goals is advised for optimal collaboration.
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Undisclosed$25 - $49 / hr50 - 249Jaipur, India
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See all 11 projectsVedyam Technology is a web development and digital marketing company specializing in Website Development, SEO, and Online Development. Their reviews are overwhelmingly positive, with clients highlighting their project management skills, timely delivery, and ability to capture brand identity effectively. Notably, 100% of reviewers commend their responsiveness and communication, while many appreciate their alignment with client values and objectives.
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$5,000+< $25 / hr50 - 249Dhaka, Bangladesh
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See all 16 projectsIMBD Agency is a versatile firm specializing in Web Development, Web Design, and digital marketing services. Clients often praise their exceptional project management and communication skills, with 100% positive feedback concerning their ability to meet deadlines and fulfill objectives. Approximately 66% of reviewers highlight their proficiency in SEO and digital marketing strategies, demonstrating their strength in enhancing online presence and lead generation.
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$1,000+$50 - $99 / hr2 - 9San Antonio, TX
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See all 2 projectsThink1 Designs is a web development company specializing in full-stack web development, custom website development, and web design services. They received overwhelmingly positive feedback, with 100% of reviewers highlighting their excellent project management and responsiveness. Clients commend their ability to deliver a modern, responsive, and user-friendly website, resulting in a significant increase in website traffic and engagement.
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$25,000+$25 - $49 / hr50 - 249
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See all 4 projectsDwarves Foundation is a web development company specializing in web application development, back-end and front-end development, and custom website development. Reviews indicate a strong emphasis on integrity and professionalism, with 100% of reviews highlighting their dedication and communication skills. While some logistical challenges were noted, clients were impressed by Dwarves Foundation's ability to streamline complex processes and deliver high-quality results.
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$50,000+$50 - $99 / hr50 - 249Beograd, Serbia
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See all 2 projectsHOOLOOVOO is a versatile software development company specializing in Java and React for both frontend and backend solutions. Reviews consistently highlight their high-quality deliverables and effective project management, with 100% of reviewers expressing satisfaction with their technical skills, collaboration, and the strategic value they bring as a partner. Their commitment to understanding client needs and delivering tailored solutions is also frequently praised.
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$5,000+$25 - $49 / hr10 - 49Bengaluru, India
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See all 13 projectsZethic Technologies is a full-stack web development company that excels in custom website development, web application development, and back-end development. Reviews indicate a 100% satisfaction rate with their services, highlighting their technical proficiency, timely delivery, and effective communication. Clients appreciate their creativity and problem-solving skills, with 75% noting their responsiveness and professionalism.
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$25,000+$25 - $49 / hr10 - 49Niš, Serbia
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See all 1 projectsMegatrend is an IT solutions provider specializing in developing integral informational systems using Microsoft technologies, such as .NET and ASP.NET Core. The feedback highlights their successful implementation of a unified database system and notable improvements in business processes, with positive reviews accounting for over 90% of the comments. Clients appreciate Megatrend's responsive communication and project management skills, with suggestions for future enhancements involving BI tools.
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$10,000+$25 - $49 / hr250 - 999Milpitas, CA
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See all 7 projectsTeksun Inc is a web development company specializing in back-end development and infrastructure management. They are praised for their effective communication, proactivity, and timely delivery, with 100% positive feedback regarding their project management and trustworthiness. Their contributions have significantly reduced client stress and enabled business growth.
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List of the Top 15 JavaScript Development Companies
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$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
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% 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 -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.5/40.019.2/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, 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+$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 -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% 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 -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.6/40.019.6/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
39.3/40.019.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.4/40.016.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.3/40.016.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.7/40.019.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37/40.018/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.3/40.018.4/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$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 / 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
37.5/40.018.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.5/40.016.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
37.8/40.018/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$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 -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.5/40.015.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$5,000+$50 - $99 / hr50 - 249Maribor, Slovenia
Ability to deliver
36.1/40.020/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
40% Web Development100% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
37.6/40.017.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$25,000+$50 - $99 / hr50 - 249Poznań, Poland
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
50% Web Development10% JavaScript50% 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.