Top JavaScript Developers
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Featured
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 88 projectsDigis, a Fiverr company (NYSE: FVRR), excels in providing comprehensive web development and staff augmentation services. With a focus on custom website development, front-end and back-end development, they consistently deliver high-quality projects, demonstrating 100% positive feedback for their technical expertise and effective project management. Clients frequently highlight their reliability and seamless integration into existing teams, with 80% mentioning their exceptional communication skills and adaptability.
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$1,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 5 projectsPeanut Square LLP is a web development company specializing in custom website and web application development. The company consistently receives positive feedback, with 100% of reviewers praising their professionalism, communication, and value for cost. Clients express satisfaction with their timely delivery and expertise in both front-end and back-end development.
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$5,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 6 projectsNCode Technologies, Inc is a web development company specializing in custom website development and web programming solutions. The company is praised for its professionalism, customer service, and ability to handle complex projects, with 100% of reviewers commending their responsiveness and technical expertise. However, 33% noted a need for improved understanding of client expectations and website design.
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$1,000+$25 - $49 / hr50 - 249
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See all 1 projectsSeashore solutions is a versatile IT services company, specializing in mobile app development, data entry, SEO, and digital marketing. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their professionalism, timely delivery, and adaptability to changes. Their commitment to delivering as promised and effective communication are frequently highlighted.
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$1,000+$25 - $49 / hr10 - 49
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See all 15 projectsCodeskies - Digital Web Development Agency is a full-stack web development company highly regarded for its expertise in custom website development, web design, and web application development. Across the reviews, 90% of clients commend their responsiveness, reliability, and ability to deliver high-quality work within budget. Notably, 80% of reviewers highlight their speed and efficiency in project execution.
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$5,000+< $25 / hr2 - 9Ahmedabad, India
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See all 4 projectsTech Midia Square is a web development company specializing in website development and design. They are praised for their skill and ability to meet deadlines, with 100% of reviewers expressing satisfaction with the project's outcome and management. Their proficiency in delivering quality results tailored to client needs is a standout feature.
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$1,000+< $25 / hr2 - 9
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See all 1 projectsRed Glue Studio is a full-stack web development company specializing in comprehensive web and graphic design services. They have consistently received positive feedback, with 100% of reviewers praising their excellent communication and superb graphic output. Clients highlight their ability to deliver cohesive and impactful online development results, indicating a strong proficiency in both front-end and back-end development.
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$10,000+Undisclosed10 - 49Ciudad de México, Mexico
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See all 5 projectsKonfront specializes in Web Development, providing services such as Website Development and Web Application Development. A notable 100% of reviews highlight their ability to offer tailored solutions that enhance business operations. While their service quality is commendable, with an emphasis on understanding client needs, they could improve efficiency, as deadlines were occasionally missed.
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$5,000+$25 - $49 / hr50 - 249Kwai Chung, Hong Kong
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See all 10 projectsVisible One is a professional web development company specializing in Website Development and Web Design. The company receives overwhelmingly positive feedback, with approximately 90% of reviewers praising their responsiveness, attention to detail, and ability to meet project timelines. Clients commend Visible One for their comprehensive web programming services, including front-end and back-end development, and report satisfaction with their custom website development projects. Some reviews suggest improvements in providing regular project updates.
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$1,000+< $25 / hr10 - 49Dhaka, Bangladesh
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See all 7 projectsDhrubok Infotech Services Ltd. is a web development company specializing in full-stack web application development, with expertise in both front-end and back-end development. The reviews indicate a strong performance in delivering responsive web applications, with approximately 100% of feedback being positive about their domain expertise and reliable output after initial timeline adjustments.
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$10,000+$25 - $49 / hr10 - 49Dover, DE
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See all 2 projectsDigital Pharma Team is a web development company specializing in digital solutions, including web programming and custom website development. They received overwhelmingly positive feedback for their ability to integrate smoothly with client teams and deliver high-quality, user-friendly digital projects, with 100% of reviewers highlighting their responsiveness and strategic insights in achieving competitive digital presence.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsCodeCrew is a full-stack web development company specializing in designing and developing custom web platforms. They received predominantly positive feedback, with a focus on their impressive matchmaking algorithm and collaborative team involvement. Although there was a minor issue with a project manager change, overall project management was praised.
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$10,000+$50 - $99 / hr10 - 49Barranquilla, Colombia
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See all 1 projectsEmdiem Creative Lab is a proficient app development company specializing in creating native iOS and Android applications. According to their reviews, the company is praised for its high-quality products and proactive, collaborative approach, with 100% of reviewers highlighting increased app downloads and positive user feedback. However, there were minor communication delays noted in project timelines.
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$1,000+< $25 / hr2 - 9Lahore, Pakistan
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See all 2 projectsAbbsent Solutions is a versatile digital agency specializing in website development and digital marketing, including SEO and social media management. Reviewers highlight their responsiveness and flexibility, with 100% positive feedback noting their adaptability and cost-effectiveness. Clients appreciate their timely project management and effective, ongoing support, making them a valuable partner for evolving e-commerce needs.
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$5,000+$25 - $49 / hr2 - 9
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See all 4 projectsUMOVA Software is a professional web development company specializing in custom website development and web application development. The reviews reflect overwhelmingly positive feedback, highlighting their strong project management, innovative solutions, and commitment to delivering quality work on time. Approximately 100% of reviewers commend their responsiveness, expertise, and ability to exceed expectations, with no significant areas for improvement noted.
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$10,000+$25 - $49 / hr50 - 249Kochi, India
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See all 3 projectsNintriva Technology Solutions is a full-stack web development company specializing in API-driven platforms and client interfaces. Reviews highlight their expertise, attention to detail, and strong project management skills, with 100% positive feedback on user experience and performance improvements. However, there is room for improvement in accessibility enhancements.
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$10,000+Undisclosed10 - 49Herzliya, Israel
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See all 1 projectsTrivium Solutions is a development company specializing in embedded platform services, including bringup, Uboot modifications, OS development, and application support. The reviews emphasize their expertise, flexibility, and commitment, with 100% noting strong project management and successful outcomes. Clients view them as a reliable partner in achieving timely project releases.
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$5,000+$25 - $49 / hr2 - 9Noida, India
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See all 4 projectsSuposham Technologies specializes in Website Development, Web Design, and Web Programming, delivering comprehensive online platforms tailored to client needs. Reviews highlight the company's professional project management, timely deliverables, and attention to detail in UI design, resulting in enhanced user engagement and business growth. Clients appreciate their structured approach and effective communication throughout the project lifecycle.
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$1,000+$25 - $49 / hr10 - 49Noida, India
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See all 2 projectsDigiStreet Media Pvt Ltd is a web development company proficient in creating custom website designs and implementing digital marketing strategies. They have successfully transformed client visions into reality, with positive feedback accounting for approximately 80% of reviews. Notable achievements include increasing website traffic from 0 to 800 visitors per month and generating over 100 leads monthly through performance ads.
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$5,000+< $25 / hr10 - 49Dubai, United Arab Emirates
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See all 2 projectsServiots Technology Pvt. Ltd. is a web development company that specializes in Custom Website Development and Web Programming. Their dedication and customer-centric approach are consistently highlighted, with 100% of reviewers praising their timely delivery and commitment to quality. This company is highly recommended by clients for its expertise and professional execution in web development projects.
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$1,000+$50 - $99 / hr2 - 9
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See all 1 projectsAlpha Labs is a web development company praised for its professional and friendly approach. The firm boasts a 100% positive feedback rate, with clients highlighting timely project completion and effective communication. Reviewers specifically noted their satisfaction with the increased footfall and leads resulting from Alpha Labs' services.
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$5,000+$100 - $149 / hr2 - 9
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See all 3 projectsBinary Evolution is a full-stack web development company specializing in custom website development and web application development. The reviews highlight their professionalism, adaptability, and ability to deliver projects on budget, with 100% of reviewers praising their responsiveness and project management skills. However, there is a suggestion for them to provide more guidance on project scope management.
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$1,000+$50 - $99 / hr2 - 9Veľký Krtíš, Slovakia
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See all 1 projectsRyvenia is a web development company specializing in modern WordPress site design, custom website development, and e-commerce solutions. Notably, 100% of the feedback from their clients is positive, highlighting their professionalism, creativity, and flexibility in adapting to changing requirements. Their work resulted in a 60% increase in customer engagement for their clients.
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$10,000+$100 - $149 / hr2 - 9Overland Park, KS
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See all 1 projectsDigital Bullpen is a branding and design agency renowned for its methodical approach to understanding clients' businesses before creating assets. They have received overwhelmingly positive feedback, with clients praising their cohesive marketing deliverables and effective communication. A significant 100% of reviewers highlight their successful outcomes and exceptional project management.
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$10,000+$25 - $49 / hr250 - 999Warszawa, Poland
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See all 6 projectsModsen is a Web Development company lauded for its software engineering capabilities, including Web and Native App development. Reviews consistently highlight their exceptional customer relationships and responsiveness, with a 100% satisfaction rate from clients emphasizing their willingness to go the extra mile. Their services offer a strong value for cost and cultural compatibility.
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$1,000+$25 - $49 / hr50 - 249Lahore, Pakistan
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See all 30 projectsJinnbyte is a full-stack web development company known for its expertise in web application development, front-end and back-end development, and custom website solutions. With over 90% positive feedback, reviewers commend Jinnbyte's project management, timely delivery, and technical acumen. Approximately 85% of clients highlight their dedication to customer success and adaptability in handling complex web development projects within tight deadlines.
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$5,000+< $25 / hr10 - 49Jodhpur, India
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See all 8 projectsSquare Bits is a mobile app development company that excels in creating customized solutions for diverse needs, including emergency services, e-commerce platforms, and privacy-focused applications. The reviews indicate a high level of satisfaction, with 100% of clients praising their dedication, responsiveness, and ability to adapt to changing requirements. Clients consistently highlight the team's communication skills and commitment to delivering quality work on time.
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$1,000+$25 - $49 / hr10 - 49
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See all 4 projectsProMonkey Technologies is a web development company specializing in Website Development and Web Design. They consistently impress clients with their creativity, attention to detail, and professional project management. With 100% positive feedback, many reviewers highlight their ability to transform underperforming websites into standout, professional platforms.
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$10,000+$25 - $49 / hr10 - 49
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See all 3 projectsDailySoft CR is a professional web development company specializing in Website Development, Web Dev, and Full-Stack Web Development. With a focus on custom solutions, they excel in Drupal and WordPress capabilities. Reviews reveal 100% positive feedback, highlighting their exceptional communication, professionalism, and client satisfaction, although suggestions for more proactive guidance were noted.
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$10,000+$50 - $99 / hr10 - 49Kraków, Poland
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See all 2 projectsMint Software is a FinTech development company known for designing and implementing advanced financial systems and middleware solutions for SMEs and startups. The company has received unanimous praise for its creative, flexible, and business-oriented approach, with both reviews highlighting their expertise in automation, integration, and user-friendly interfaces. Impressively, 100% of the reviewers noted the effectiveness and impact of Mint Software’s solutions on their businesses, mentioning significant increases in value and competitive advantage.
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$1,000+< $25 / hr10 - 49Solapur, India
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See all 2 projectsAdvert Digital Mantra Pvt Ltd is a digital marketing company specializing in lead generation and social media marketing services. According to client testimonials, 100% of the feedback is positive, highlighting their impressive ability to exceed expectations by generating over 400 leads in a month, enhancing sales team training, and maintaining effective communication throughout their projects.
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$25,000+< $25 / hr50 - 249Gurugram, India
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See all 1 projectsShortHills Tech is a technology solutions provider specializing in custom web platform development, including machine learning, front- and backend development, and automation. The overall feedback is highly positive, with clients praising their effective communication, strong leadership, and understanding of the e-commerce industry. While they could improve their expertise in Google technologies, clients are generally satisfied with the quality and impact of their work.
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UndisclosedUndisclosed10 - 49Sibiu, Romania
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See all 5 projectsAgile Freaks is a web development company specializing in full-stack web development and agile methodologies, supporting projects from secure website development to complex survey platforms. The company has received overwhelmingly positive feedback, with clients highlighting their collaborative and solution-oriented approach. Impressively, 100% of reviewers praised Agile Freaks for their seamless project management and ability to foster organizational growth.
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$10,000+$50 - $99 / hr10 - 49Budapest, Hungary
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See all 3 projectsScriptide is a software development company specializing in the creation of web extensions and cross-platform mobile applications. Across the reviews, 100% of clients highlighted their exceptional project management, technical expertise, and proactive approach, with no areas for improvement mentioned. Clients praised Scriptide for delivering high-quality results on time and within budget, emphasizing their flexibility and strong cultural fit.
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$5,000+$50 - $99 / hr10 - 49Kharkiv, Ukraine
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See all 1 projectsJOrange is a web development company specializing in Shopify solutions and optimization. The reviews highlight their technical proficiency and creative problem-solving abilities, with clients appreciating their ability to enhance site speed and implement innovative features. Positive feedback is prevalent, with notable praise for their fair pricing and effective project management, making them a reliable and valued partner in e-commerce development.
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$5,000+$25 - $49 / hr2 - 9
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See all 3 projectsFoxlabs Developers offers Web Development services, including custom software development, Web Design, and Web Programming. Clients consistently praise their professional and collaborative approach, timely communication, and successful project delivery. Overall, Foxlabs Developers is recognized for providing a great value for cost with a focus on user-friendly solutions and excellent customer satisfaction.
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$10,000+$25 - $49 / hr10 - 49London, England
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See all 2 projectsOnekode, Software Development Company, is a full-stack web development firm specializing in custom website development and web application development. The reviews highlight their holistic approach and commitment to delivering projects on time. Impressively, 100% of reviewers commend their seamless project execution, though suggestions were made for improved orientation of new team members during structural changes.
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$1,000+$50 - $99 / hr2 - 9
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See all 3 projectsVadimages is a web development company specializing in web design, custom website development, and web application development. They have received consistently positive feedback, with 100% of reviewers highlighting their professionalism, timely communication, and project management skills. Clients appreciate their ability to deliver intuitive and accessible designs while providing personalized guidance throughout the development process.
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$1,000+$50 - $99 / hr10 - 49Rīga, Latvia
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See all 10 projectsIMdesign is a web development company specializing in custom website development and web design. With a perfect record of client satisfaction, they are praised for their creativity, functionality, and efficient project management. All reviews commend their responsive communication and ability to meet project deadlines while enhancing both user experience and brand alignment.
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$25,000+$25 - $49 / hr10 - 49Quezon City, Philippines
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See all 10 projectsProudcloud is a distinguished web development company specializing in custom web application development, full-stack web development, and modern web solutions. With a focus on Node.js, Ruby on Rails, and responsive design, they have consistently delivered high-performing websites that exceed client expectations. Reviews highlight their exceptional project management, technical expertise, and customer-first approach, with 100% positive feedback emphasizing seamless execution and client satisfaction.
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$5,000+$25 - $49 / hr2 - 9Kalyan, India
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See all 1 projectsFortunekit Labs specializes in UI/UX design for mobile applications, demonstrating expertise in creating user-friendly and visually appealing products. The feedback is overwhelmingly positive, with clients praising their proactive approach, effective communication, and ability to incorporate new design elements. A minor drawback mentioned was initial timeliness issues, which have since been addressed. Overall, Fortunekit Labs is highly recommended, especially for MVP-level projects.
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$10,000+$50 - $99 / hr2 - 9Pančevo, Serbia
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See all 2 projectshiveyard is a web development company specializing in Website Development and Web Design. The feedback highlights their professionalism, efficiency, and ability to deliver modern, user-friendly websites on time and within budget. Impressively, 100% of reviewers praised their communication and personal service, with no areas identified for improvement.
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$1,000+< $25 / hr2 - 9
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See all 1 projectsW3ICON is a web development company specializing in web design and custom website development. Their reviews reflect a 100% satisfaction rate, highlighting their ability to deliver clean, fast-loading, and SEO-friendly websites with modern designs. Clients consistently praise their responsiveness and high-quality design work, although some note minor delays.
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$10,000+Undisclosed2 - 9Warszawa, Poland
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See all 1 projectsTarga is a Web Development company specializing in Custom Website Development and Web Application Development. With an impressive 100% positive feedback rate, clients commend Targa for their excellent project management, timely delivery, and alignment with company values. Approximately 50% of reviews highlight their expertise in UX and UI optimization, showcasing their dedication to delivering high-quality digital products.
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$5,000+< $25 / hr50 - 249Mumbai, India
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See all 3 projectsOneRoof Technologies LLP is a proficient web development company specializing in custom website and e-commerce portal development. They have garnered overwhelmingly positive feedback, with 100% of reviewers highlighting their commitment to timely delivery and high-quality outcomes. Clients commend their innovative solutions, exceptional communication, and the ability to significantly improve website performance, such as achieving a 400% increase in loading speeds.
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$5,000+< $25 / hr2 - 9København, Denmark
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See all 2 projectsCrown Tech is an IT solutions and software development company recognized for their expertise in addressing connectivity challenges and developing comprehensive booking platforms. Their reviews highlight a 100% positive feedback rate, with clients praising their professionalism, flexibility in payment terms, and capability to deliver timely results. A notable 50% of reviewers emphasized their collaborative approach and understanding of project needs.
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$5,000+$50 - $99 / hr10 - 49Khulna, Bangladesh
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See all 3 projectsTeconce is a web development company recognized for its strong design and development skills, focusing on customization and enhancement of web platforms. They received predominantly positive feedback, with clients highlighting their fast response and flexible service. Approximately 100% of reviewers appreciated their ability to find better solutions and responsive communication.
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$5,000+$50 - $99 / hr10 - 49
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See all 4 projectsWeptile is a web development company specializing in custom website development and WooCommerce functionality. Their exceptional project management and communication skills are highlighted in reviews, with 100% positive feedback. Clients appreciate their deep domain knowledge and ability to deliver tailored solutions, enhancing customer experience and operational efficiency. They consistently meet deadlines and exceed expectations, though some suggest they could expand their team for increased responsiveness.
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$25,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 4 projectsSoftHouse is a web development company specializing in Web Application Development and Full-Stack Web Development, delivering innovative and user-friendly solutions. With 100% positive feedback, clients commend their proactive and collaborative team, as well as their expertise in technologies, project management, and ability to meet business objectives within deadlines and budget.
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$1,000+$25 - $49 / hr10 - 49Vadodara, India
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See all 3 projectsCreOwn Technologies is a web development company specializing in Sitecore and .Net development services. Reviews highlight their impressive flexibility and effective project management. With 100% positive feedback, clients appreciate their timely delivery and technical expertise in web application and custom website development.
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$25,000+$50 - $99 / hr10 - 49Buenos Aires, Argentina
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See all 1 projectsUnderscope is a software development company specializing in custom solutions, particularly using React and React Native, with a strong focus on collaboration and integration with existing teams. The feedback is overwhelmingly positive, highlighting their leadership in project management and technical expertise. Notably, 100% of reviewers commend their ability to foster a seamless and comfortable team environment, enhancing both development efficiency and client satisfaction.
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List of the Top 15 JavaScript Development Companies
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$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 -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development60% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
39.1/40.019.8/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.9/40.018/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.5/40.019.6/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$10,000+$50 - $99 / hr50 - 249Kuala Lumpur, Malaysia
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.8/40.019.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Web Development40% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.8/40.017/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Kolkata, India
Ability to deliver
36.7/40.019.4/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% Other -
$1,000+< $25 / hr250 - 999Boston, MA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$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 -
$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 Development33% JavaScript90% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.4/40.016.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
65% Web Development20% JavaScript35% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38.4/40.018.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% 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 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
28% Web Development15% JavaScript72% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.5/40.018.4/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249Chelsea, Australia
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
37.8/40.018/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$1,000+< $25 / hr1,000 - 9,999London, England
Ability to deliver
36.5/40.019.2/20 Reviews9.3/10 Clients & Experience8/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.2/40.016.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$25,000+$100 - $149 / hr50 - 249Cypress, CA
Ability to deliver
36.2/40.018.2/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
100% Web Development40% JavaScript
Top JavaScript Development Agencies
A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.
Most agencies bundle multiple offerings so clients can access full product life-cycle support:
- Discovery workshops & technical consulting
- UI/UX design and prototyping
- Front-end SPA or PWA development
- Server-side development with Node.js or Deno
- API design, GraphQL, and microservices architecture
- QA automation & performance testing
- DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
- Post-launch maintenance and feature sprints
Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.
Clutch data shows project budgets range widely:
- MVP or small web app - $15,000–$50,000
- Mid-size product build - $50,000–$200,000
- Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.
- Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
- Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
- Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
- Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
- Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.
Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.
- Guaranteed timelines without discovery
- No access to source code repositories during the engagement
- Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
- Low developer retention or high turnover
- Vague pricing models or hidden fees
If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution
- Which JavaScript frameworks do you specialize in, and why?
- Can you walk me through a recent project with similar complexity?
- How do you ensure code quality—linting, peer reviews, automated tests?
- What is your approach to scalability and performance optimization?
- How will we communicate and track progress (tools, meeting cadence)?
- Who owns the intellectual property and source code upon project completion?
Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.
A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.
Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.