Top JavaScript Developers
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Featured
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 89 projectsDigis, a Fiverr company (NYSE: FVRR), 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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$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 4 projectsTech Talent Force is a distinguished web development company specializing in custom website development, web programming, and full-stack web development services. Across their reviews, 100% of clients commend their effective and timely delivery, responsive communication, and innovative solutions. Their versatility in adapting to evolving project needs and commitment to quality assurance are consistently highlighted.
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$10,000+$100 - $149 / hr10 - 49Alpharetta, GA
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See all 1 projectsCode N Apps is a web development company praised for its effective Web Design and Custom Website Development services. With 80% satisfaction in project management and 100% communication, clients appreciate their innovative ideas, although some suggest improvements in communication detail and timeliness.
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$1,000+Undisclosed10 - 49Sydney, Australia
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See all 3 projectsTapo Digital is a web development company specializing in full-stack web development and advanced AI solutions. It consistently receives positive feedback, with 65%+ of users praising usability and relevance, and achieving over 90% project milestone adherence. Clients appreciate Tapo Digital's seamless integration of AI expertise with SEO and web design, highlighting its exceptional project management and innovative solutions.
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$5,000+$50 - $99 / hr10 - 49Niš, Serbia
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See all 6 projectsPhase 56® is a web development company specializing in custom website development and Webflow projects. Their reviews indicate a 100% satisfaction rate with clients praising their exceptional project management, responsive communication, and innovative designs. Approximately 75% of reviewers highlighted their impressive creative solutions and ability to deliver high-performance, scalable sites that align with business goals.
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$50,000+$25 - $49 / hr250 - 999Pune, India
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See all 3 projectsDeqode is a web development company that excels in front-end and back-end development, providing effective engineering resource augmentation. With 100% positive feedback, clients commend their communication and ability to deliver suitable engineering talent promptly. Deqode's staff integration capabilities are particularly highlighted by reviewers.
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$10,000+$25 - $49 / hr10 - 49Poznań, Poland
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See all 3 projectsNephilim is a versatile software development company specializing in building graphically rich front-end solutions and mobile applications. Across their reviews, Nephilim is praised for their professionalism, proactive communication, and agile approach, with 100% of reviewers highlighting their ability to deliver high-quality results and meet timeline expectations. Clients also commend their adaptability and innovative solutions, contributing to significant project successes.
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$5,000+$25 - $49 / hr10 - 49Naples, FL
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See all 2 projectsMounter.io is a creative agency specializing in web development, design, and animation services. Reviews indicate a high level of professionalism and effective communication, with 100% of clients appreciating their dedication and streamlined project management. Clients commend their responsiveness and creativity, though cultural or industry-specific challenges may affect project outcomes. Overall, Mounter.io is recommended for its professionalism and consistent delivery.
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$10,000+$25 - $49 / hr50 - 249Irvine, CA
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See all 2 projectsXavor Corporation is a technology solutions company specializing in Agile-PLM consulting and automation services. Based on reviews, 100% of clients commend their responsiveness and solution-oriented approach, with some noting early delays that were promptly addressed. They are praised for their ability to enhance system functionality and improve business processes efficiently.
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$1,000+$50 - $99 / hr10 - 49Dewas, India
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See all 1 projectsSoham Web Solution is a web development company specializing in Web Design, Web Development, and UI/UX services. With a 100% positive feedback rate, clients praise their creative solutions, attention to detail, and commitment to client satisfaction. They are noted for delivering visually stunning and highly functional websites, although improvements in project documentation were suggested.
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UndisclosedUndisclosed50 - 249Ha Noi, Vietnam
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See all 2 projectsUPZOOM Studio is a web development company specializing in enhancing and refining website interfaces and functionalities. Review feedback is overwhelmingly positive, with a 93% approval rating on their user-friendly and aesthetically pleasing designs. Clients commend their effective project management and lean, enthusiastic team, noting a 30% increase in user engagement after project completion.
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$5,000+$25 - $49 / hr2 - 9
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See all 2 projectsBitscorp is a software development company specializing in backend Ruby on Rails and frontend integration for B2B SaaS platforms, particularly in the medical field. The company receives positive feedback for its technical expertise, competitive pricing, and clear communication, with 100% of reviewers highlighting their reliability and directness. Clients benefit from engaging their own project management alongside Bitscorp's technical focus.
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$100,000+$25 - $49 / hr10 - 49Buenos Aires, Argentina
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See all 9 projectsCodea IT is a web development company known for its expertise in custom website development and full-stack web development services. With 100% positive feedback, clients commend their efficiency, clear communication, and the ability to deliver tailored solutions promptly. Notably, their work includes web application development and seamless e-commerce integration, significantly enhancing client business operations.
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$5,000+$50 - $99 / hr10 - 49Katowice, Poland
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See all 5 projectscodefit is a web development company specializing in custom website development and web application development. The reviews highlight their excellent communication, quick implementation, and accurate delivery. With 100% positive feedback, codefit is praised for its great culture fit and good value for cost.
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$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 2 projectsZolvac Technologies is a web development company specializing in custom website development and web design. Reviewers expressed high satisfaction with 90% highlighting their effective project management and adherence to deadlines. However, 20% suggested improvements in providing more frequent updates and enhanced customization options. Their proactive communication and dedication to customer satisfaction were consistently praised.
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$10,000+$50 - $99 / hr10 - 49Bucharest, Romania
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See all 2 projectsAppsmart is a software integration company renowned for its expertise in developing robust middleware solutions. They are highly recommended for their technical prowess and effective communication, as evidenced by overwhelmingly positive feedback. Approximately 90% of reviewers commend their technical skills and project management, highlighting their ability to meet deadlines and reduce operational errors.
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UndisclosedUndisclosed10 - 49Rajkot, India
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See all 6 projectsInlancer Techonologies offers Website Development services, including setup, testing, and bug fixes. The reviews highlight the company's timely delivery, excellent communication skills, and overall client satisfaction. Clients have praised their value for cost and friendly demeanor, making them a reliable choice for Web Dev projects.
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$1,000+$25 - $49 / hr50 - 249
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See all 5 projectsZetasoft Solutions is a proficient Web Development company specializing in Full-Stack Web Development and Web Application Development. Clients consistently praise their transparent project management and high-quality deliverables, with 100% of reviewers noting projects were completed on time and within budget. Additionally, 67% of reviews highlight the alignment of company values and exceptional communication.
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$25,000+$100 - $149 / hr2 - 9Peterborough, Canada
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See all 2 projectsGyroscopic is a software development firm specializing in custom solutions for data management and software migration. With positive feedback from 100% of reviewers, clients commend their responsiveness, expertise, and commitment to project timelines. Their services have been noted to improve operational efficiency and cost-effectiveness, with one client reporting savings of over $100,000.
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$1,000+< $25 / hr2 - 9Indore, India
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See all 1 projectsCode Precise IT Solutions LLP is a web development company specializing in Web Application Development and Custom Website Development. The feedback is overwhelmingly positive, with 100% of reviews highlighting their responsiveness and strong client relationships. Notably, clients appreciate their ability to simplify complex processes and their personal touch in communication.
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$5,000+$100 - $149 / hr2 - 9Serrekunda, Gambia
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See all 1 projectsDigiTech Solutions is a multimedia production company praised for its professional delivery of promotional materials, including videos and brochures. With 100% positive feedback, clients commend DigiTech's strong communication and attention to detail, highlighting their versatility and competence, akin to a "Swiss Army knife." The company consistently exceeds expectations and adheres strictly to deadlines.
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$5,000+$25 - $49 / hr10 - 49
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See all 6 projectsPOLYARIX is a full-stack web development company specializing in front-end and back-end development, web programming, and custom website development. Garnering consistently positive reviews, with 100% client satisfaction, customers commend their flexibility, efficient communication, and timely delivery. The company's ability to deliver custom solutions and maintain excellent project management is frequently highlighted by clients.
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$10,000+$25 - $49 / hr10 - 49Foster City, CA
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See all 2 projectsMUGCO is a staff augmentation company specializing in providing developers, designers, and product personnel from Europe. With 100% positive feedback, reviewers consistently praise their professionalism, timeliness, and high-quality service delivery. Clients highlight MUGCO's ability to efficiently source and recruit candidates, ensuring successful long-term placements.
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$1,000+$50 - $99 / hr10 - 49
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See all 27 projectsSquidX Agency is a web development company specializing in Website Development, Web Design, and UI/UX design. The agency consistently receives positive feedback, with 100% of reviewers praising their attention to detail and project management. Clients highlight significant improvements in website performance and increased engagement, with 60% reporting substantial business growth and enhanced online presence. Their commitment to client satisfaction is evident through timely project delivery and effective communication.
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$1,000+< $25 / hr10 - 49Delhi, India
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See all 2 projectsDIGI INTERACTS PVT LTD is a versatile company specializing in Web Development and mobile app solutions. Clients appreciate their project management, proactive communication, and commitment, with 100% of reviewers highlighting their positive engagement and adaptability. They are praised for their educational approach, ensuring clients understand the technical aspects, and their flexibility with international time zones.
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$1,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 1 projectsPINBLOOMS TECHNOLOGY PRIVATE LIMITED is a web development company recognized for its proficiency in complex integrations, particularly with Magento. The company receives overwhelmingly positive feedback, with clients highlighting their expertise and responsiveness. Impressively, 100% of reviewers commend their on-time delivery and communication through virtual meetings, making them a reliable choice for web programming and development projects.
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$1,000+< $25 / hr10 - 49Indore, India
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See all 1 projectsCorusview IT Services Pvt. Ltd. is a versatile company offering services in SEO, web development, software development, and mobile app development. Feedback indicates a strong commitment to work and deliverables, with excellent project management; 100% of reviewers commend their dedication and effectiveness, and none noted areas for improvement.
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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsTech5 Ethiopia IT SOLUTION PLC is a web development company praised for its website design services. Reviews indicate a 100% positive sentiment, highlighting their punctuality and alignment with client values. Clients appreciate their hardworking nature and the good value they offer for the cost, with no noted areas for improvement.
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$1,000+$50 - $99 / hr10 - 49
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See all 1 projectsInstantly Design is a mobile app development and UI/UX design company specializing in creating user-friendly applications, particularly for e-commerce. The reviews indicate a high level of expertise, with 100% positive feedback on their e-commerce knowledge and project execution. Clients appreciated their thorough understanding of industry nuances and impressive portfolio. Communication and collaboration were highlighted as essential for successful outcomes.
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$25,000+Undisclosed50 - 249Surat, India
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See all 2 projectsTriveni Global Software Services LLP is a web development company praised for its commitment and effective project management, consistently delivering on time. With 100% positive feedback from reviewers, clients appreciate their value for cost, cultural alignment, and cutting-edge solutions in website development.
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$1,000+< $25 / hr2 - 9Rawalpindi, Pakistan
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See all 4 projectsProject Mirage is a web development company specializing in custom website development and web design. They are praised for their clear understanding of client requirements, with 100% positive feedback from reviewers. Clients recommend their services, noting satisfaction with their project management and efficient communication, although they suggest increased self-promotion could enhance their business opportunities.
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Undisclosed$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 3 projectsNexVis Tech is a web development company recognized for its exceptional customer service and expertise in website development and maintenance. The overwhelmingly positive feedback—100% of reviewers noted their timely and effective problem-solving skills—highlights their reliability and commitment to client satisfaction, with no areas for improvement mentioned.
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$10,000+$25 - $49 / hr10 - 49
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See all 10 projectsF22 Labs is a full-stack web development company specializing in custom website and web application development. Feedback across their reviews is overwhelmingly positive, highlighting their flexibility, problem-solving skills, and effective project management. Approximately 90% of reviewers commend their strong communication and ability to meet deadlines, while about 85% praise their innovative approach and understanding of client needs.
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$1,000+$25 - $49 / hr10 - 49Kochi, India
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See all 3 projectsiROID Technologies is a mobile app development company praised for its professional approach and excellent project management skills. They have a 100% positive feedback rate, with clients highlighting their dedication, timely delivery, and quality product outcomes. Most reviewers emphasize the team's effective communication and support throughout the project lifecycle.
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$1,000+$25 - $49 / hr250 - 999
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See all 3 projectsPellucid Labs is a full-stack web development company known for its expertise in web application and custom website development. Reviews highlight their strong work ethic, flexibility, and technical expertise, with 100% positive feedback on their project management and delivery. Their ability to integrate third-party services and provide maintenance support is particularly commended.
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Undisclosed$50 - $99 / hr50 - 249Kraków, Poland
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See all 2 projectsEngipulse is a Web Development company specializing in Web Application Development with expertise in AI and MLOps. They received 100% positive feedback, with clients praising their top-level engineering, solid management, and sense of ownership in projects. Their transparent billing and clear contracts are also commended, indicating high client satisfaction.
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$1,000+< $25 / hr10 - 49
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See all 2 projectsAhsan Solutions is a web development company specializing in Website Development, LMS, and ERP solutions. The company receives overwhelmingly positive feedback for their cost-effective services and timely delivery, with 100% of reviewers highlighting their excellent customer service and responsible team. However, there is a suggestion to diversify their service offerings.
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$1,000+$50 - $99 / hr10 - 49
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See all 1 projectsHatchHope Private Limited is a versatile development company offering Shopify site development, digital advertising, and SEO services. Reviews indicate a high level of satisfaction, with 100% of the feedback being positive, highlighting their quality workmanship, timely delivery, and adherence to budget. Overall, the company maintains an impressive track record in project management and client communication.
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$1,000+$25 - $49 / hr2 - 9
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See all 3 projectsNested For is a proficient web development company specializing in website development, web design, and SEO. With an impressive 100% positive feedback across reviews, clients praise their attention to detail and technical expertise. Notably, 50% of reviewers highlight their commitment to understanding unique business needs, resulting in successful custom website development and seamless feature integration.
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$5,000+$100 - $149 / hr2 - 9
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See all 8 projectsGambix is a web development company specializing in custom website development and full-stack web development services. Across their reviews, 100% of clients appreciated their expertise and responsiveness, though some noted initial communication challenges. Clients valued Gambix's ability to deliver projects on time and their commitment to realizing clients' visions, with a strong emphasis on collaboration and understanding.
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$1,000+$25 - $49 / hr2 - 9
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See all 9 projectsSymatech Labs Ltd is a web development company specializing in Custom Website Development and Web Design. The company receives highly positive feedback, with 100% of reviewers commending their creativity and professionalism, particularly noting their ability to deliver mobile-friendly, fast-loading websites with excellent user interfaces and traffic management capabilities.
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UndisclosedUndisclosed50 - 249Salisbury, MD
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See all 7 projectsRaptor Mobile Apps specializes in custom mobile app development across various industries, including sports, gaming, real estate, and advertising. They have consistently delivered projects on time, achieving high user engagement and satisfaction. Approximately 75% of reviewers commend their exceptional project management and responsiveness, while 25% note minor areas for improvement, such as communication frequency. Overall, Raptor Mobile Apps is praised for their creativity and ability to exceed client expectations.
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$25,000+< $25 / hr10 - 49
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See all 1 projectsOctos Global is a web and mobile application development company noted for its custom website development and web application development services. They have received 100% positive feedback, with clients praising their stable coding, excellent user interface design, timely delivery, and accommodating nature. Their ability to align with client values and budgets is frequently highlighted by reviewers.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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See all 1 projectsD9ITHUB SOFTWARE SOLUTIONS PRIVATE LIMITED is a web development company specializing in creating WordPress and PHP platforms, including healthcare and e-commerce sites, along with logo creation. With 100% satisfaction reported, clients commend their punctual project management and effective communication, noting their ability to deliver cost-effective solutions promptly.
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$10,000+< $25 / hr10 - 49Islamabad, Pakistan
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See all 6 projectsDevelo IT Solutions is a web development company specializing in custom website development, web application development, and UI/UX design. Reviews highlight their strengths in meeting deadlines and providing value for cost, with roughly 70% of clients praising their communication and adaptability. However, 30% suggest improvements in developer accountability and clearer client-developer communication.
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Undisclosed$25 - $49 / hr10 - 49Lucknow, India
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See all 4 projectsAgreed Technologies is a web development company specializing in website design, custom website development, and SEO services. With 100% positive feedback, clients praise their professionalism, customization capabilities, and commitment to project timelines. Their seamless project management and competitive pricing are consistently highlighted, although initial vetting processes could be streamlined.
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$5,000+$100 - $149 / hr2 - 9Montreal, Canada
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See all 2 projectsDASWEB is a web development company that excels in delivering custom website development and SEO services. Reviewers highlight their impressive project management and ability to enhance online visibility, with 100% of feedback being positive. Clients appreciate their holistic digital strategy, although suggestions for more frequent progress updates were noted.
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$5,000+$25 - $49 / hr10 - 49
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See all 1 projectsDiginow London is a web design company specializing in creating bespoke websites with enhanced functionality and ongoing maintenance. Feedback highlights their ability to meet project objectives, with 100% of reviews noting improved functionality and design appeal. Clients appreciate their responsiveness and personal commitment, but suggest maintaining proactive communication. Overall, Diginow delivers efficient and effective web solutions tailored to client needs.
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$5,000+$25 - $49 / hr10 - 49Giza, Egypt
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See all 1 projectsDesignfy is a mobile app development company noted for its professionalism and efficient project management. The company successfully developed a mobile app for an online radio, leading to over 5,000 downloads and excellent user feedback. Reviewers highlighted the company's impressive app development and test environments, with 100% positive feedback regarding their timely deliveries and communication.
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$10,000+$25 - $49 / hr10 - 49
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See all 7 projectsXiico Software Solutions is a web development company proficient in web and mobile app development, excelling in diverse technologies such as WordPress, Shopify, and Laravel. With a track record of over 10 successful projects, 100% of reviewers commend their responsiveness, timely delivery, and ability to provide tailored solutions. Some suggest expanding their team to better manage workload.
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$5,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 7 projectsSufalam Technologies Pvt Ltd is a web development company specializing in custom website development and web application development. Approximately 100% of the feedback praised their ability to deliver user-friendly solutions on time, although some clients noted a desire for more proactive idea-sharing. Overall, the company is well-regarded for responsive project management and maintaining ongoing service agreements.
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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
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
38.5/40.019.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% 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
38.7/40.019.4/20 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+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.5/40.017.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
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 -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.6/40.018.6/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% 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 -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.7/40.018.8/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% 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 -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.9/40.017.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.7/40.019/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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 -
$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 -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.3/40.018.2/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38/40.018.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$10,000+$50 - $99 / hr10 - 49Montevideo, Uruguay
Ability to deliver
38.3/40.019.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
40% Web Development50% JavaScript60% 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
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.