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 91 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development and engineering service provider specializing in full-stack web development and custom website development. The company consistently receives positive feedback, with approximately 95% of reviews highlighting their high-quality developers and management excellence. Clients frequently commend their project management skills and responsiveness, making them a reliable partner for complex web programming and online development projects.
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$10,000+< $25 / hr50 - 249Udaipur, India
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See all 5 projectsMedRec Technologies specializes in Web Development, particularly for interactive and contemporary web portals. Clients consistently appreciate their innovative thinking, effective project management, and dedicated team, noting that their expertise significantly enhances business competitiveness and user engagement. Overall feedback highlights MedRec Technologies' commitment to delivering user-friendly and well-designed solutions.
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$5,000+$25 - $49 / hr10 - 49Jerusalem, Israel
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See all 3 projectsfatFish is a proficient Web Development company specializing in Custom Website Development and Web Programming. Based on the reviews, 100% of reviewers highlight their effective project management and responsiveness to client needs. They are praised for translating complex designs into functional websites while maintaining flexibility and attentiveness, suggesting a client-centric approach to Full-Stack Web Development.
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$10,000+$25 - $49 / hr10 - 49
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See all 7 projectsCeyentra Technologies is a professional web development company specializing in Website Development and Web Programming. Across reviews, 100% of clients praised their communication skills, attention to detail, and professionalism. The company excels in timely project delivery and has a high level of technical knowledge, with 70% of reviewers noting impressive project management and client handling.
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$5,000+$50 - $99 / hr10 - 49
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See all 4 projectsFROGRIOT - digital studio is a versatile web development company excelling in custom website development, web design, and full-stack web development. Their reviews highlight a professional and creative approach, with 100% positive feedback on their design expertise and project management. Clients appreciate their problem-solving capabilities and seamless communication, with 50% mentioning their impressive UX/UI skills and attention to detail.
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$1,000+$25 - $49 / hr10 - 49Bengaluru, India
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See all 11 projectsCloseFuture is a web development company specializing in full-stack web development, web application development, and custom website development. Across its reviews, CloseFuture consistently receives positive feedback for its exceptional project management, on-time delivery, and strong communication skills. Approximately 100% of the reviews highlight their excellent execution, responsiveness, and value for cost, with no significant suggestions for improvement mentioned.
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$10,000+$25 - $49 / hr10 - 49
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See all 3 projectsCodein Software is a web development company specializing in custom website development, web programming, and full-stack web development. Reviewers consistently highlight the company's ability to deliver complex projects, such as a cryptocurrency trading platform, on tight deadlines. Clients commend the dedicated team's project management skills and flexibility, with 100% positive feedback on their ability to meet specific project needs efficiently.
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$5,000+< $25 / hr50 - 249Ahmedabad, India
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See all 5 projectsTechcronus Business Solutions is a proficient web development company specializing in Custom Website Development and Web Application Development. The company is praised for its technical excellence and effective communication, with approximately 90% positive feedback. Reviewers commend their attention to detail and value for cost, though they suggest improvements in documentation and post-development support.
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$10,000+$50 - $99 / hr10 - 49Manchester, England
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See all 14 projectsForesight Mobile is a full-stack web development company with a strong emphasis on web application development. Their reviews highlight a 100% positive feedback rate, praising their on-time delivery, budget adherence, and exceptional communication skills. Clients appreciate their collaborative approach and problem-solving expertise, ensuring project success and client satisfaction.
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$1,000+Undisclosed10 - 49Hoboken, NJ
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See all 11 projectsLiqui-Site, a web development company affiliated with eMazzanti Technologies, specializes in custom website development and online development solutions. Reviews indicate high satisfaction, with 100% of feedback being positive, highlighting their intuitive technology and responsive project management. Their ability to transform client concepts into dynamic, media-rich websites is frequently praised.
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$10,000+$150 - $199 / hr10 - 49Anoka, MN
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See all 1 projectsIceberg Web Design is a web development company specializing in custom website development within the WordPress ecosystem. Reviewers emphasize their exceptional customer service, with 100% of the feedback highlighting this as a key strength. While results include an improved marketing-first website, some reviewers noted issues with mobile design and page loading times.
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$10,000+$25 - $49 / hr10 - 49Hanoi, Vietnam
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See all 11 projectsLinxHQ Pte Ltd is a web development company specializing in website development and CRM solutions. Reviews highlight their exceptional collaboration, technical expertise, and problem-solving skills, with 100% of clients praising their efficiency and timeliness. Their agile project management and proactive communication ensure smooth progress and successful project outcomes.
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$50,000+$100 - $149 / hr50 - 249Prague, Czech Republic
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See all 12 projectsSalsita Software is a versatile company offering services in Website Development and Full-Stack Web Development, with expertise in Web Application Development and Custom Website Development. Reviews highlight their professionalism, expertise, and dedication, with approximately 90% of reviewers praising their project management and communication skills. Clients are consistently impressed with their engagement levels and ability to deliver scalable, high-quality solutions.
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$1,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 2 projectsCursor is a web development company specializing in WordPress website development and custom website solutions. The reviews indicate a 100% satisfaction rate, highlighting their timely delivery, effective communication, and ability to propose solutions for complex issues. Clients appreciate their alignment with company values and commitment to project requirements.
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$25,000+$50 - $99 / hr10 - 49Dnipropetrovs'k, Ukraine
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See all 5 projectsSpaceBus is a web development company specializing in both front-end and full-stack web development services. Reviewers consistently highlight the team's strong technical skills, flexibility, and result-oriented approach. With positive feedback regarding their responsiveness and efficiency, 100% of clients acknowledge their technical aptitude and project management abilities.
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$10,000+$25 - $49 / hr10 - 49Hrebinka, Ukraine
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See all 25 projectsOwlab OÜ is a web development company specializing in web design, full-stack web development, and custom website development. Clients consistently praise Owlab for their effective communication, professionalism, and reliability, with 100% of reviews highlighting satisfaction with their services. They are notable for delivering high-quality products on time and within budget, demonstrating strong project management skills.
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$5,000+< $25 / hr10 - 49
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See all 3 projectsTechliance is a web development company specializing in Web Programming, Custom Website Development, and Full-Stack Web Development. Reviews highlight their exceptional project management, timely delivery, and staying within budget. They are praised for their deep industry understanding, resulting in user-friendly and well-designed platforms. All reviewers express satisfaction, indicating a 100% positive feedback rate.
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$1,000+< $25 / hr50 - 249Rajkot, India
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See all 25 projectsWings Tech Solutions is a versatile web development company specializing in full-stack web development, web application development, and custom website development. They have received overwhelmingly positive feedback, with a 100% satisfaction rate among reviewers who praise their technical expertise, responsiveness, and timely delivery. Approximately 80% of reviews highlight their ability to integrate technical skills with creative solutions to meet diverse project needs.
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$10,000+$25 - $49 / hr10 - 49Mumbai, India
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See all 26 projectsBig Rattle Technologies is a versatile web development company known for providing custom website development, web application development, and full-stack web development services. With an impressive 100% recommendation rate, clients consistently praise their ability to deliver innovative, user-focused solutions on time. A significant 80% of reviewers highlight their exceptional project management skills and commitment to understanding client needs.
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$25,000+Undisclosed10 - 49Joondalup, Australia
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See all 2 projectsRedi Software is a development company specializing in UI/UX design, SaaS platform management, and complex data integration solutions. They have received unanimous praise for their ability to meet unique requirements, deliver high-quality solutions, and maintain excellent communication. While they are described as expensive, 100% of reviewers highlight their premium quality and realistic expectations. Concerns are minimal, with one client suggesting a need for backup resources.
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$5,000+$25 - $49 / hr10 - 49Delhi, India
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See all 10 projectsMax Vision Solutions Private Limited is a web development company specializing in comprehensive e-commerce platform design and development, incorporating features like payment gateway integration and SSL certificate implementation. With an 85% positive review rate, clients consistently commend their technical expertise, responsiveness, and innovative solutions. Approximately 40% of reviewers highlight their ability to deliver projects on time, showcasing strong project management skills.
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Undisclosed$50 - $99 / hr10 - 49
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See all 3 projectsevri.co is a web development company specializing in custom website development, web application development, and full-stack web development. Clients praise their technical expertise, proactive communication, and efficient project management, with 100% positive feedback highlighting their creativity and ability to meet deadlines. Notably, their comprehensive services have enhanced clients' digital ecosystems, improving functionality and user satisfaction.
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$1,000+< $25 / hr10 - 49
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See all 3 projectsCodigitar is a web development company specializing in custom website development and web design. They receive overwhelmingly positive feedback, with 100% of reviewers highlighting their personalized attention and proficiency in the latest technology. Clients particularly appreciate their serious work ethic and effective communication through email and phone calls.
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$25,000+$50 - $99 / hr2 - 9Round Rock, TX
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See all 3 projectsFulcrum Dynamic is a web development company specializing in custom website development, API integration, and security upgrades. Reviewers consistently praised their professionalism, commitment, and effective communication. Positive feedback was prevalent, with 100% of reviewers highlighting their impressive project management and the team's dedication. Although some initial challenges were mentioned, Fulcrum Dynamic demonstrated adaptability and improvement throughout their engagements.
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$5,000+$25 - $49 / hr50 - 249
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See all 3 projectsProfound is a web development company specializing in website development, custom portal creation, and digital marketing strategies. With high ratings, their projects have achieved significant results, including a 60% increase in organic traffic and 70% growth in social media engagement. Approximately 100% of reviews highlight their effective communication and cost-value balance.
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$25,000+$50 - $99 / hr50 - 249Los Angeles, CA
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See all 2 projectsSpartan is a software development company specializing in building scalable, stable solutions and MVPs, integrating advanced features like AI and security measures. Their reviews highlight a strong focus on organization, communication, and client success, with 100% positive feedback on project management and adaptability to client needs. Clients commend their dedication and quality, with no significant issues reported.
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$1,000+$50 - $99 / hr50 - 249
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See all 6 projectsKhired Networks is a comprehensive solutions provider specializing in website development and digital marketing services. With a focus on web design, their team consistently delivers high-quality results, as evidenced by a 100% positive feedback rate from clients. Clients particularly appreciate their professionalism and commitment to customer satisfaction.
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$5,000+$50 - $99 / hr10 - 49Memphis, TN
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See all 2 projectsBanyan Labs is a web development company known for its exceptional Website Development, Web Design, and Back-End Development services. They consistently meet deadlines and deliver high-quality projects that exceed expectations. Notably, 100% of reviewers praised their communication skills and ability to adapt to client needs, with no negative feedback reported. Additionally, they are lauded for their social impact, employing justice-impacted individuals.
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$5,000+$100 - $149 / hr10 - 49New York, NY
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See all 6 projectsFiron Marketing is a dynamic web development and digital marketing agency, noted for its proficiency in custom website development and SEO strategies. With consistently positive feedback from clients, such as 100% mentioning timely delivery and responsive communication, the company excels in enhancing online presence and driving growth. Their impressive team culture and efficient project management are frequently highlighted by reviewers.
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$5,000+$25 - $49 / hr10 - 49
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See all 6 projectsRubika Agency is a web development company specializing in website design, web application development, and custom web solutions. Across various reviews, Rubika is praised for its professionalism, innovative approach, and attention to detail, with approximately 80% of reviewers highlighting their effective communication and dedication to client success. The agency excels in creating tailored solutions that enhance clients' online presence and operational efficiency.
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$25,000+$150 - $199 / hr10 - 49San Francisco, CA
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See all 4 projectsYeti LLC is a custom website development company focused on web and application development services. The company is commended for its proactive attitude, with 100% of reviewers noting their enthusiasm and can-do spirit. While performance is positively rated, with one client stating the output "has become better than anticipated," approximately 50% mention challenges with project management and communication.
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$1,000+$50 - $99 / hr2 - 9Novi Sad, Serbia
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See all 9 projectsDeutrix is a versatile web development company specializing in custom website development, full-stack web development, and web application development. With a focus on delivering high-quality results, 100% of reviewers commend their rapid communication, technical expertise, and ability to meet deadlines. Their comprehensive services and impressive project management make them a reliable partner for various web programming needs.
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$5,000+$25 - $49 / hr50 - 249Newark, CA
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See all 2 projectsDevBatch is a versatile technology solutions provider, specializing in mobile app development, custom software, and e-commerce solutions, coupled with SEO services. Their clients frequently commend their strong project management and commitment to understanding client needs, though some note communication and resource consistency as areas for improvement. Across reviews, approximately 75% highlight their impressive project completion and customer understanding.
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$1,000+$25 - $49 / hr10 - 49Warszawa, Poland
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See all 6 projectsDigiWay is a web development company specializing in custom website development and front-end development. The company consistently receives positive feedback for its professionalism, communication, and ability to deliver on time, with around 90% of reviewers highlighting their attention to detail and flexibility. Clients appreciate their ability to understand complex requirements and deliver high-quality, user-friendly interfaces.
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$5,000+< $25 / hr10 - 49Pune, India
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See all 3 projectsInvezza Technologies is a web development company specializing in both web and mobile solutions. They have received positive feedback for their technical expertise and project management, with 100% of reviewers praising their professionalism and responsiveness. Clients appreciate their ability to deliver high-quality work efficiently, as evidenced by their consistent progress updates and adherence to schedules.
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$75,000+$150 - $199 / hr10 - 49Pasadena, CA
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See all 6 projectsPastilla Inc. is a full-stack web development and web design company known for its responsive and comprehensive technical support. The company receives overwhelmingly positive feedback, with clients highlighting their project management skills, timely delivery, and ability to handle complex web development tasks efficiently. Approximately 90% of the reviews commend their dedication, problem-solving capabilities, and the positive impact on website traffic and user engagement.
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$25,000+$25 - $49 / hr10 - 49Fort Lauderdale, FL
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See all 5 projectsProtos Technology LLC is a web development company specializing in custom website development and full-stack web development. The company has received positive feedback for its comprehensive project management and ability to deliver on promises, with a satisfaction rate of 100%. Clients praise their professionalism, flexibility, and expertise in web design and online development.
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UndisclosedUndisclosed10 - 49
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See all 3 projectsiExperto Inc. is a web development company specializing in full-stack web development, web design, and web application development, with a strong focus on responsive design and security. The company enjoys 100% positive feedback, with clients highlighting their efficient project management, responsiveness, and high-quality deliverables. Reviewers particularly appreciate their commitment to timelines and user-centric design.
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Undisclosed$50 - $99 / hr10 - 49Kyiv, Ukraine
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See all 1 projectsVintage is a web development company known for their expertise in custom website development and web design. They receive overwhelmingly positive feedback, with 100% of the reviewers praising their project management and design capabilities. Clients appreciate their ability to meet deadlines and their proactive engagement in community development, distinguishing them as a leader in the Ukrainian web development landscape.
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$1,000+$50 - $99 / hr10 - 49Bellevue, WA
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See all 18 projectsRevX is a web development company that excels in custom website development, web design, and backend management. The reviews reflect a strong emphasis on timely project completion and exceptional quality, with both clients highlighting impressive expertise and a client-focused approach. Satisfaction with RevX’s services is nearly unanimous, with a 100% positive feedback rate and praise for their seamless project management.
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$1,000+$25 - $49 / hr2 - 9Zagreb, Croatia
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See all 8 projectsZero Molecule is a web development company specializing in front-end engineering and custom website development. With 100% positive feedback, clients appreciate their expertise in modern web technologies, timely delivery, and effective communication. They excel in creating responsive, visually polished websites while setting realistic expectations and providing valuable suggestions to enhance the final product.
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$5,000+$25 - $49 / hr50 - 249Surat, India
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See all 5 projectsCrest Infosystems Pvt. Ltd. is a versatile web development company, offering services in Web Application Development and Full-Stack Web Development. With a focus on quality, flexibility, and client satisfaction, over 90% of their reviews highlight their strong project management and responsiveness. Clients consistently praise their solution-oriented approach and technical expertise, although some note room for improvement in proactive thinking and design skills.
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$10,000+$50 - $99 / hr10 - 49Vancouver, Canada
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See all 10 projectsPace Creative Group is a full-service agency specializing in custom website development and brand creation. Praised for their excellent project management, responsiveness, and positive company culture, 100% of reviewers express satisfaction with their deliverables, highlighting their ability to exceed expectations consistently.
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$25,000+$25 - $49 / hr10 - 49Yerevan, Armenia
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See all 3 projectsCodeInno is a web development company specializing in full-stack web development and custom website development. Reviews highlight their ability to understand project needs quickly and execute them effectively, with 100% of reviewers noting their impressive responsiveness and commitment to quality. While clients praise their communication and project management, there is a shared suggestion for enhanced project status visibility.
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$5,000+$25 - $49 / hr10 - 49
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See all 14 projectsBleakers is a web development company specializing in web application development and custom website development. They have consistently received positive feedback, with 100% of reviewers praising their responsiveness and value for cost. Clients particularly commend their ability to deliver projects on time and their adeptness in both front-end and back-end development solutions.
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$10,000+$100 - $149 / hr2 - 9Pelham, Canada
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See all 2 projectsFirescript is a web development company specializing in custom website development, web design, and SEO optimization. Notable for their exceptional project management and transparent communication, they maintain a 100% positive feedback rate from clients. 80% of reviewers emphasize their goal-oriented approach and ability to deliver tailored, high-quality solutions that drive significant business growth.
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$25,000+$150 - $199 / hr10 - 49Grand Rapids, MI
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See all 4 projectsDigital Industry Group (DIG) is a versatile digital solutions provider specializing in software development, branding, and web design. Overall feedback from clients is overwhelmingly positive, with approximately 100% praising their adaptability, professionalism, and client-focused approach. Reviewers frequently highlight DIG's effective project management and communication, with 75% mentioning their responsiveness and ability to align with client needs.
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$5,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 2 projectsSRH Software is a versatile web development company specializing in custom website development, web application development, and full-stack web development. Feedback is overwhelmingly positive, with a common theme of 100% of reviewers highlighting timely delivery, strong communication, and alignment with client needs. Clients consistently praise their expertise in web design and development, emphasizing user-friendly and visually appealing solutions.
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$1,000+$25 - $49 / hr10 - 49Islamabad, Pakistan
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See all 19 projectsWhizpool, a company specializing in Web Development and mobile app solutions, has received overwhelmingly positive feedback, with 100% of reviewers highlighting their commitment and technical expertise. Clients commend their ability to handle complex projects, deliver scalable and secure applications, and manage effective communication throughout development, with 50% of reviews praising their attentive project management.
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$5,000+$50 - $99 / hr10 - 49Wrocław, Poland
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See all 9 projectsDroptica is a distinguished web development company with a focus on custom website development, specializing in Drupal, PHP, and web application development. Across various reviews, clients consistently praise their technical expertise, timely delivery, and strong communication, with approximately 90% of reviewers highlighting these strengths. Despite minor suggestions for improvement in quality assurance, Droptica’s adaptability and commitment to quality make them a preferred partner for many businesses.
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$5,000+$50 - $99 / hr10 - 49Toruń, Poland
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See all 15 projectsAppWorks Software House is a comprehensive web development company specializing in custom website and web application development, offering services such as full-stack web development, web design, and online development solutions. Across numerous reviews, 100% highlighted the company's flexibility, effective project management, and ability to meet evolving client needs, with 80% specifically praising their seamless integration of complex systems and user-friendly designs.
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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
60% Web Development50% JavaScript40% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.7/40.018.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% 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+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Web Development40% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
38.7/40.019.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development90% JavaScript50% Other -
$10,000+$50 - $99 / hr50 - 249Amsterdam, Netherlands
Ability to deliver
39.1/40.019.8/20 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 - 249Warszawa, Poland
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% 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 -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.2/40.019.2/20 Reviews10/10 Clients & Experience10/10 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 -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development15% JavaScript70% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$10,000+$25 - $49 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Web Development50% JavaScript80% 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 -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.1/40.016.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.1/40.018.2/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+$50 - $99 / hr10 - 49Covina, CA
Ability to deliver
37.5/40.017.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
55% Web Development80% JavaScript45% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.3/40.018.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% 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 -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
45% Web Development10% JavaScript55% Other -
$25,000+$50 - $99 / hr50 - 249L'viv, Ukraine
Ability to deliver
39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Web Development40% JavaScript70% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.1/40.016.2/20 Reviews10/10 Clients & Experience9.9/10 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 -
$25,000+$50 - $99 / hr10 - 49Wrocław, Poland
Ability to deliver
38.1/40.018.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development70% JavaScript60% 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.