Top JavaScript Developers
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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), specializes in Web Development, providing comprehensive services such as Front-End Development, Back-End Development, and Custom Website Development. Their reviews indicate a 100% satisfaction rate, highlighting their strong project management, technical expertise, and clear communication. Approximately 70% of reviewers emphasize their seamless integration into teams and high-quality deliverables.
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$5,000+$200 - $300 / hr10 - 49Laval, Canada
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See all 5 projectsDirect Impact Solutions is a custom website development and web application development company known for its strong project management and client-focused approach. The reviews highlight their effective communication, timely delivery, and ability to tailor solutions to client needs, with 100% of reviewers expressing satisfaction and no suggestions for improvement. Clients commend their professional yet personable service and high-quality work.
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$5,000+Undisclosed10 - 49
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See all 2 projectsCKI is a web development company specializing in custom website development, with expertise in both front-end and back-end development. They have received 100% positive feedback for their consistent communication, timeliness, and supportive approach, with 80% of reviewers highlighting their patience and project accuracy.
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$5,000+$25 - $49 / hr10 - 49Kraków, Poland
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See all 26 projectsAppricotsoft is a web development company specializing in comprehensive Website Development, Web Programming, and Web Application Development. The company receives overwhelmingly positive feedback, with over 90% of reviewers praising their project management, technical expertise, and proactive communication. Clients consistently highlight Appricotsoft's commitment to quality and innovative solutions, especially in Full-Stack and Custom Website Development, with seamless project execution and high satisfaction rates noted across various industries.
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$10,000+$100 - $149 / hr2 - 9New York, NY
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See all 8 projectsHyuman is a distinguished company specializing in Website Development, Web Design, and Full-Stack Web Development. The reviews are overwhelmingly positive, with 100% of clients praising their responsiveness, communication, and ability to meet deadlines. Clients frequently highlight Hyuman's alignment with their brand values and the high-quality, user-friendly websites they deliver, often mentioning their exceptional problem-solving skills and strategic collaboration.
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$25,000+$150 - $199 / hr10 - 49London, England
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See all 11 projectsBit Zesty is a web development company specializing in web application development, offering services like ongoing support, feature development, and system redesign. Across the reviews, 100% of clients appreciate their friendly and professional approach, with many highlighting their timely project delivery and effective communication. Approximately 67% of reviews mention their ability to meet complex project needs efficiently.
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$100,000+$50 - $99 / hr1,000 - 9,999San Francisco, CA
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See all 10 projectsWizeline is a full-stack web development company renowned for its expertise in front-end and back-end development. With approximately 100% positive feedback, clients praise its ability to deliver efficient solutions and integrate seamlessly with existing teams, as evidenced by its work on custom web applications like ThynkBooks, which enhanced user experience and operational efficiency.
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$10,000+$50 - $99 / hr10 - 49Lisboa, Portugal
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See all 1 projectsWidgiLabs is a web development company specializing in Front-End and Back-End Development, leveraging technologies like JavaScript and Ruby on Rails. Client feedback is overwhelmingly positive, highlighting their excellent project management and technical expertise; 100% of reviewers commend their motivation and enthusiasm, and there are no noted areas for improvement.
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$75,000+$25 - $49 / hr50 - 249Bratislava, Slovakia
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See all 56 projectsAltamira is a digital transformation company specializing in web application development, custom website development, and full-stack web development. Reviews indicate a consistent record of timely project delivery and high-quality outputs, with 100% of feedback highlighting impressive project management and technical expertise. Their structured approach and attention to detail have been praised, contributing to successful and impactful project outcomes. Overall, Altamira receives overwhelmingly positive feedback across various projects.
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$10,000+$25 - $49 / hr50 - 249Hamilton, Canada
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See all 17 projectsCabot Technology Solutions, Inc is a comprehensive web development company that specializes in full-stack web development, web application development, and custom website development. Their reviews are overwhelmingly positive, with clients highlighting their technical competencies, responsiveness, and ability to deliver on time. Approximately 100% of reviews mention satisfaction with project outcomes, while some indicate a need for improved client expectation management.
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$10,000+$150 - $199 / hr10 - 49Surry Hills, Australia
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See all 3 projectsWonderful is a web development company specializing in UX/UI design, digital strategy, and web development. They have received consistently positive feedback, with clients reporting significant improvements in conversion rates and user engagement. Approximately 100% of reviewers highlight their effective project management and communication skills, showcasing their ability to connect data insights with practical web development outcomes.
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$25,000+$150 - $199 / hr10 - 49Washington, DC
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See all 8 projectsnclud is a web development company specializing in custom Website Development and Web Design. They have demonstrated robust project management capabilities, highlighted by a 100% satisfaction rate among clients citing their creativity, responsiveness, and flexibility. Clients frequently commend nclud for their ability to translate complex visions into functional, visually appealing websites, with approximately 75% noting their strong communication and personal attention.
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$25,000+$50 - $99 / hr50 - 249Vilnius, Lithuania
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See all 17 projectsScaleTech is a distinguished web development company excelling in Custom Website Development, Web Application Development, and Front-End Development. With 100% of reviews highlighting their timely delivery and cost-effective services, clients commend their ability to balance quality and affordability. Their expertise in integrating complex functionalities into user-friendly interfaces is noteworthy.
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$10,000+$25 - $49 / hr10 - 49
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See all 16 projectsRaftLabs is a proficient web development company specializing in custom website development, web application development, and full-stack web development. They have consistently received positive feedback for their project management, communication, and technical expertise, with 100% of reviewers highlighting their effective communication and transparency. Clients appreciate their ability to deliver projects on time and within budget, although some noted areas for potential improvement in UI design and mobile app development.
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$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 12 projectsBoring Owl is a Web Development company excelling in Front-End Development and Full-Stack Web Development. Their reviews highlight a 100% positive feedback rate, praising their professional commitment, transparency, and effective communication. Clients commend Boring Owl's SEO knowledge and adaptability, with one reviewer noting successful project delivery that aligned with expectations and established guidelines.
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$50,000+$150 - $199 / hr10 - 49Riyadh, Saudi Arabia
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See all 18 projectsiSpectra is a professional web development company with a strong focus on Drupal-based solutions, offering services such as custom website development, web design, and SEO optimization. Across their reviews, 100% of clients praised their effective project management, timely delivery, and impressive communication skills. A notable 90% of reviews highlight their technical expertise in web application development and front-end development, underscoring their capability in enhancing digital presence and user experience.
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$25,000+$100 - $149 / hr10 - 49
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See all 2 projectsEnhanceable is a custom software development company specializing in creating platforms and dashboards for improved client communication and operational efficiency. Across two detailed reviews, 100% of clients praised their responsiveness and ability to meet or exceed expectations, highlighting their attention to detail and project management skills. Both reviewers mentioned founder Harvey as a key point of contact, noting effective communication and timely deliverables.
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$10,000+$150 - $199 / hr2 - 9Seattle, WA
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See all 68 projectsSayenko Design is a web development company specializing in custom website development and full-stack web development services. Known for their expertise in WordPress and responsive project management, they have received overwhelmingly positive feedback, with over 90% of reviews highlighting their flexibility, on-time delivery, and technical proficiency. Clients consistently praise their ability to customize and enhance web designs, emphasizing their adaptability and communication skills.
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$10,000+$150 - $199 / hr10 - 49St. Louis, MO
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See all 4 projectsHexxen is a web development company specializing in custom website development and web design. The company receives overwhelmingly positive feedback, with about 100% of reviewers highlighting their effective communication and personalized service. Clients commend Hexxen's thorough project management and innovative solutions, showcasing their expertise in creating visually impressive and functional websites.
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$25,000+$25 - $49 / hr10 - 49Kraków, Poland
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See all 2 projectsEXB Soft is a software development company specializing in .NET, C#, and full-stack development for web and mobile applications. The overall feedback from clients is positive, highlighting their professionalism, timely delivery, and creative problem-solving. Approximately 95% of reviewers are satisfied with their communication and project management skills.
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$25,000+$25 - $49 / hr50 - 249Granite Bay, CA
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See all 7 projectsFullStack Labs is a Web Development company specializing in Custom Website Development and Web Application Development. The company is praised for its efficient agile development plans and strong communication skills, with nearly 100% of clients expressing satisfaction with their services. While some reviewers noted minor communication gaps, overall, FullStack Labs is recognized for its technical expertise and professionalism.
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$25,000+$100 - $149 / hr10 - 49Canton, OH
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See all 10 projectsSKYCATCHFIRE is a versatile web development company specializing in custom website and web application development. The company consistently receives positive feedback for its communication, flexibility, and ability to deliver projects on time and within budget. Approximately 90% of reviewers highlight SKYCATCHFIRE's effective project management and responsiveness, emphasizing their expertise in full-stack web development and their capacity to transform ideas into clean, modern designs.
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$10,000+$25 - $49 / hr50 - 249Berlin, Germany
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See all 52 projectsSloboda Studio is a full-stack web development company specializing in custom website and web application development with expertise in Ruby on Rails and React. Their client reviews indicate a high level of satisfaction with 95% highlighting their excellent project management, timely delivery, and effective communication. Many clients appreciate their adaptability and rapid problem-solving, noting the team's ability to integrate seamlessly into existing workflows.
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$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 22 projectsRadency is a full-stack web development company specializing in custom web application development and mobile app enhancement. Across multiple reviews, Radency is praised for its high quality, adaptability, and professionalism, with 100% of reviewers expressing satisfaction with the company's rapid delivery and outstanding project management. Clients consistently highlight Radency's ability to exceed expectations, maintain effective communication, and provide innovative technical solutions.
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$25,000+$25 - $49 / hr50 - 249Hyderabad, India
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See all 5 projectsTericsoft is a web development company known for digitizing operations and providing comprehensive solutions like software and mobile app development. They received overwhelmingly positive feedback, with 100% of reviewers commending their project management and responsiveness. Their ability to adapt quickly without compromising quality is frequently praised.
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$50,000+$50 - $99 / hr50 - 249Novi Sad, Serbia
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See all 26 projectsCodetribe is a professional web development company specializing in custom web application development, full-stack web development, and web design services. The company consistently receives positive feedback, with all reviewers highlighting their professionalism, adaptability, and goal-oriented approach. Approximately 100% of reviews praise their timely delivery and strong communication skills. This indicates Codetribe's commitment to understanding client needs and providing tailored solutions.
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$10,000+$25 - $49 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 1 projectsAvisoft is a technology company specializing in QA automation and data engineering services. The company is praised for its genuine resources and quick adaptability, with reviewers noting 100% satisfaction with project outcomes and timely delivery. Clients appreciate the company's value for cost and alignment with their values.
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$5,000+$200 - $300 / hr10 - 49
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See all 16 projectsIndie Ridge is a prominent web development company specializing in custom website and web application development. With a 100% satisfaction rate across reviews, clients commend their timely delivery, high-quality standards, and exceptional communication. Approximately 70% of reviews highlight their proficiency in full-stack web development and adaptability to client needs, emphasizing their capability to handle complex web programming and design projects efficiently.
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$50,000+$50 - $99 / hr50 - 249Kyiv, Ukraine
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See all 5 projectsINTELLISOFT Corp is a Web Development company known for its expertise in custom website and web application development. The company excels in integrating solutions such as ERP systems and offers full-stack capabilities using technologies like Node.js and .NET. Reviewers consistently highlight their maturity, strong communication skills, and project management, with approximately 100% of feedback being positive regarding their ongoing engagement and intuitive approach to development.
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$25,000+$50 - $99 / hr10 - 49Budapest, Hungary
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See all 7 projectsBRAINSUM is a specialized web development company offering a comprehensive suite of services, including custom website development, web application development, and full-stack web development. The majority of reviews highlight their professionalism, solution-oriented approach, and effective project management, with 100% positive feedback regarding their communication and commitment to delivering on time and within budget. Clients consistently commend their expertise in Drupal and their ability to exceed expectations.
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$1,000+< $25 / hr10 - 49
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See all 8 projectsTechCoders.design is a specialized Shopify development agency known for its impressive portfolio and expertise in creating responsive and visually appealing e-commerce websites. With a client satisfaction rate of 100%, reviewers consistently praise their effective project management, agile communication, and outstanding customer service. Clients have reported increased sales and conversion rates, highlighting TechCoders.design’s capability in delivering quality work and innovative e-commerce solutions.
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$25,000+$25 - $49 / hr50 - 249Tallinn, Estonia
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See all 35 projectsBamboo Agile is a Web Development company specializing in Custom Website Development and Full-Stack Web Development services. Reviewers consistently highlight their responsiveness, dedication, and ability to deliver projects within tight timeframes. The company is praised for its technical expertise, with 100% positive feedback and commendations for their effective project management and seamless communication.
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$5,000+$25 - $49 / hr250 - 999Ahmedabad, India
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See all 20 projectsSPEC INDIA is a company renowned for providing robust support in Web Development and related services. Clients commend their quality, hard work ethic, and timely delivery of tasks. Approximately 100% of feedback highlights their effective communication and project management skills, although some suggest improved communication regarding price changes.
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$1,000+$50 - $99 / hr10 - 49Fleet, England
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See all 13 projectsFlow Guys is a web development company specializing in Website Development, Web Design, and Custom Website Development projects, primarily leveraging the Webflow platform. They consistently receive positive feedback, noted for their professionalism, responsiveness, and dedication to client satisfaction, with over 90% of reviews highlighting their on-time delivery and proactive communication. Many clients commend their ability to integrate complex functionalities seamlessly while maintaining high standards of design and user experience.
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$10,000+$100 - $149 / hr2 - 9Amsterdam, Netherlands
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See all 10 projectsKlein Media is a full-service digital agency specializing in Website Development, Web Design, and SEO. Their client reviews are overwhelmingly positive, with 100% praising their professional management, timely delivery, and tailored solutions. Clients highlight Klein Media's adaptability and commitment to creating value through data-driven strategies, showcasing their expertise in both Full-Stack Web Development and Custom Website Development. Additionally, their exceptional communication and proactive approach are frequently noted as key strengths.
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$5,000+$25 - $49 / hr10 - 49Zagreb, Croatia
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See all 9 projectsProject42.Agency [powered by Uprise] is a web development company that excels in Web Programming, Custom Website Development, and Web Application Development. With 100% positive feedback from clients, they are praised for their exceptional project management, timely delivery, and ability to blend creativity with technical expertise, meeting and often exceeding client expectations.
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$10,000+$25 - $49 / hr10 - 49Dubai, United Arab Emirates
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See all 5 projectsAALA IT Solutions is a web development company specializing in Full-Stack Web Development and React Native app development. They have received overwhelmingly positive feedback, with clients praising their timely delivery, adaptability, and effective communication. Approximately 75% of reviews highlight their ability to meet complex project requirements and enhance user experiences, while suggestions for improvement are minimal.
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$10,000+$25 - $49 / hr50 - 249Tomball, TX
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See all 52 projectsBytes Technolab Inc. is a comprehensive web development company specializing in full-stack web and application development. The majority of reviews (approximately 88%) highlight their strong communication, timely delivery, and seamless integration with client teams, while 12% noted project management challenges. Clients emphasize their expertise in front-end and back-end development, custom website development, and problem-solving capabilities, making them a valued partner for complex web programming projects.
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$50,000+$100 - $149 / hr50 - 249München, Germany
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See all 10 projectsCOBE is a versatile web development company specializing in Website Development, Custom Website Development, and Front-End Development. With a strong focus on UX/UI, COBE has received overwhelmingly positive feedback, with clients praising their flexibility, effective communication, and seamless integration with in-house teams. Notably, 100% of reviews highlight their effective project management and ability to swiftly adapt to client needs.
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$5,000+$25 - $49 / hr50 - 249Cherkasy, Ukraine
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See all 10 projectsVReal Soft specializes in Website Development and Web Design, providing tailored online solutions like responsive web applications and administrative dashboards. Their clients commend their effective project management, timely delivery, and deep domain knowledge, particularly in niche markets such as hairstyling and salons. Overall, feedback highlights VReal Soft's ability to meet specific client needs proficiently.
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Undisclosed< $25 / hr50 - 249Houston, TX
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See all 9 projectsCraftedQ is a web development company specializing in Custom Website Development and WordPress Website Development. The reviews indicate a 100% positive feedback rate, with a notable emphasis on their attention to detail and commitment to quality. Approximately 80% of reviewers highlight their expertise in delivering tailored, user-friendly solutions, and efficient project management, consistently meeting deadlines and exceeding client expectations.
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$5,000+< $25 / hr50 - 249London, England
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See all 27 projectsiConnect Digital Solutions Ltd is a distinguished web development company specializing in custom website development and comprehensive web application development. The company is praised for its high-quality deliverables and adherence to timelines, with 100% of reviewers highlighting their professionalism and responsiveness. Specifically, 80% of reviews commend their ability to align company values and deliver solutions that exceed client expectations.
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$5,000+$50 - $99 / hr50 - 249Zagreb, Croatia
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See all 30 projectsCinnamon is a versatile web development company specializing in Website Development, Web Design, and Full-Stack Web Development. Their reviews highlight a strong emphasis on effective communication and adaptability, with 100% positive feedback on project management. Approximately 75% of reviewers commend them for their impressive design capabilities, while 60% appreciate their ability to integrate seamlessly with client teams.
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$10,000+$25 - $49 / hr50 - 249Addis Ababa, Ethiopia
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See all 3 projectsAddis Software is a web development company specializing in custom website development and WordPress themes. Reviews highlight their ability to deliver projects on time and within budget, with 100% of the feedback being positive. Clients appreciate their high-quality service and value, though some suggest enhancing internal SEO expertise.
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$1,000+$50 - $99 / hr10 - 49Toronto, Canada
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See all 10 projectsMeevo Digital is a reputable web development company specializing in custom website development, full-stack web development, and web application development. Clients consistently praise their speed, communication, and technical expertise, with nearly 100% positive feedback highlighting their ability to deliver responsive, efficient solutions. Their adaptability and client-focused approach are consistently noted as impressive by clients across various industries.
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$10,000+$50 - $99 / hr10 - 49Prague, Czech Republic
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See all 5 projectsedgy.digital is a web development company known for its expertise in creating comprehensive web solutions, including front-end and back-end development. With 100% positive feedback, clients praise the firm's detailed project management and creative solutions, noting their timely delivery and ability to enhance project outcomes. The company's strengths lie in web application development, online development, and full-stack web development.
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$5,000+$50 - $99 / hr10 - 49Duluth, GA
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See all 9 projectsBits Kingdom is a company specializing in Website Development and Web Application Development, offering services such as Custom Website Development and Full-Stack Web Development. Reviews consistently highlight their strong communication skills, technical expertise, and ability to deliver projects in a timely and professional manner. Approximately 90% of reviewers emphasize their responsiveness and quality work, with clients experiencing significant improvements in their operations, such as increased sales or enhanced workflow efficiency.
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$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
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See all 40 projectsTepia is a web development company specializing in custom website development, web design, and full-stack web development services. Clients consistently praise Tepia for their exceptional project management, technical expertise, and proactive problem-solving approach. Approximately 90% of the reviews highlight Tepia's responsiveness and flexibility, while around 70% emphasize their ability to deliver user-friendly and innovative web solutions that meet or exceed client expectations.
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$25,000+$25 - $49 / hr50 - 249Hanoi, Vietnam
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See all 10 projectsAdamo Software is a prominent full-stack web development company specializing in website and mobile app development, along with custom solutions for diverse industries. The company's reviews reflect a high level of customer satisfaction, with notable praise for their professionalism, fast delivery, and effective project management. Approximately 85% of reviewers commend their dedication and quality of work, highlighting their ability to meet project milestones and exceed client expectations.
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$10,000+$50 - $99 / hr2 - 9Malahide, Ireland
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See all 11 projectsMawla is a full-service web development company specializing in custom website development and web application development. The reviews highlight consistent positive feedback, with a 100% satisfaction rate among clients, praising their communication, project management, and ability to deliver high-quality websites on time and within budget. Approximately 90% of reviewers commend Mawla for their responsiveness and personalized approach to projects.
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$10,000+$50 - $99 / hr50 - 249Wrocław, Poland
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See all 26 projectsRST Software, a web development company, excels in providing custom website development and full-stack web development solutions. Their reviews highlight a 100% positive feedback rate, with clients praising their professionalism, strong project management, and commitment to quality. Approximately 75% of reviewers commend their ability to understand customer needs and deliver projects efficiently.
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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+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
39.5/40.019.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.6/40.016.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% 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 -
$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.