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 87 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development firm offering comprehensive solutions in custom website development, full-stack web development, and web application development. With 100% positive feedback, clients commend their seamless integration into teams, high-quality deliverables, and responsiveness. Approximately 80% of reviews highlight their effective project management and communication, emphasizing their reliability and expertise in meeting project milestones.
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$25,000+$25 - $49 / hr50 - 249Bengaluru, India
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See all 3 projectsKalpita Technologies is a web development company highly regarded for its expertise in complex integration projects, including custom website development and full-stack web development. With praise from 100% of reviewers for their excellent project management and timely delivery, they are noted for their dedication and commitment to quality outcomes.
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$5,000+$50 - $99 / hr10 - 49Wrocław, Poland
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See all 2 projectsCCA Europe.pl is a software development company specializing in integrated banking solutions, particularly with FIS PROFILE systems. Their services are characterized by flexibility, technical expertise, and seamless collaboration, earning positive feedback in 100% of the reviews. Clients highlight the company's effective communication, cultural adaptability, and robust project management skills, with 50% underscoring their proactivity in technical problem-solving and change management.
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$25,000+$25 - $49 / hr10 - 49Legnica, Poland
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See all 2 projectsBlumilk is a software development company that excels in creating scalable and complex solutions for various industries, including education and insurance. Reviews indicate a strong commitment to client projects, with 100% of feedback highlighting their proactive approach and ability to deliver on tight deadlines. Clients consistently praise Blumilk's effective project management and innovative ideas, demonstrating high satisfaction and ongoing collaboration.
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$5,000+< $25 / hr10 - 49Ahmedabad, India
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See all 4 projectsFameget Consultants Private Limited is a versatile software development company specializing in web and mobile app development. With consistent positive feedback from all their clients, their strong communication skills and responsiveness are highlighted by 100% of reviewers. Clients commend their ability to deliver timely solutions and effective project management, contributing to a high level of satisfaction with their services.
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$5,000+< $25 / hr50 - 249Koratty, India
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See all 2 projectsWoxro is a web development company specializing in web design and custom website development. Their work received overwhelmingly positive feedback, with clients noting professional service and effective communication. A key highlight is their ability to deliver websites that are easy to update and maintain. One reviewer expected a tenfold increase in web traffic post-project.
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UndisclosedUndisclosed10 - 49Midvale, UT
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See all 3 projectsUtah Digital Marketing Experts, operating as Utah SEO OG, specialize in web design, SEO, and social media marketing. The reviews consistently highlight their swift and effective SEO strategies, with 100% of feedback reporting top search engine rankings within a month. Their website development services are praised for rapid delivery, achieving new site completions in two weeks. Clients commend their communication and reliability, noting no areas for improvement.
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$10,000+$25 - $49 / hr10 - 49Pune, India
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See all 1 projectsRoxiler Systems is a web development company specializing in full-stack web development and web application development. Their reviews highlight their professionalism and skill, with 100% of reviewers appreciating their responsiveness and technical expertise. The company is praised for its commitment to timelines and effective communication with clients, resulting in minimal bugs and crashes.
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$1,000+Undisclosed2 - 9
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See all 1 projectsCode Vibe is a web development company specializing in custom website development with an emphasis on full-stack web development, including both front-end and back-end development. Their reviews are overwhelmingly positive, with 92% of users rating their work as 'Excellent' or 'Very Good', particularly appreciating their project management, innovative solutions, and human-centric design approach.
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$10,000+$50 - $99 / hr10 - 49
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See all 6 projectsDigital Trons is a web development company specializing in full-stack web development, web application development, and custom website development. Their reviews indicate strong client satisfaction, with approximately 90% positive feedback highlighting their flexibility, affordable rates, and high-quality work. Clients appreciate their ability to adapt to changing requirements and their proactive communication. However, some feedback suggests they could improve responsiveness to emails and issues.
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$1,000+$100 - $149 / hr2 - 9
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See all 1 projectsThynk Studio is a web development company known for its effective communication and timely delivery. In a project with AWS Solar, Thynk Studio successfully redesigned a modern website, with positive feedback highlighting their excellent communication skills. Overall, 100% of the feedback was positive, emphasizing their capability to meet project deadlines and maintain strong client relationships.
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$1,000+$25 - $49 / hr2 - 9Chennai, India
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See all 1 projectsClofus Innovations Pvt. Ltd. is a technology company specializing in AI-driven solutions, particularly in the multimedia and communication sectors. The company has received overwhelmingly positive feedback, with clients praising their organizational skills and their ability to integrate AI technologies effectively. Notably, 100% of the reviewers highlighted their critical contribution to project success, although there's room for improvement in communicating their capabilities.
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$5,000+$25 - $49 / hr10 - 49
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See all 3 projects360Brains excels in Custom Website Development and Full-Stack Web Development, demonstrating expertise in creating unique web applications through comprehensive solutions like WordPress plugins and API integrations. With a strong focus on client communication and quick responsiveness, they maintain a high level of customer satisfaction, as indicated by overwhelmingly positive feedback on their professionalism and adaptability from all reviewers.
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$10,000+$50 - $99 / hr10 - 49
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See all 1 projects4 Fragments LLC is a company specializing in AI platform integration, server setup, and CRM solutions. Reviews highlight their exceptional communication, speed, and quality, with 100% positive feedback and no suggestions for improvement. Clients praise their project management and ability to meet aggressive deadlines, making them a highly recommended choice for technical integration projects.
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$5,000+$50 - $99 / hr2 - 9
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See all 5 projectsTech Makers is a web development company specializing in custom website development and web application development. With 100% positive feedback across reviews, clients commend their efficient project management and expertise in Bubble.io, with 50% highlighting their ability to deliver effective solutions quickly. Their attentive communication and proactive problem-solving are frequently praised by clients.
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$1,000+< $25 / hr50 - 249
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See all 3 projectsNaestinn is a web development company specializing in website redesign, SEO optimization, and web application development. Reviews highlight their ability to tailor services to business needs, leading to a 30% increase in traffic and improved SEO rankings. While 100% of feedback is positive, some suggest improving communication with more regular updates.
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Undisclosed$50 - $99 / hr10 - 49Tallinn, Estonia
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See all 2 projects42 Coffee Cups is a web development company specializing in custom website development and complex web application solutions. Clients consistently praise their expertise, with over 90% expressing satisfaction, particularly noting their problem-solving skills and efficient project management. Their ability to handle challenging projects and maintain excellent communication distinguishes them from other offshore firms.
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$1,000+$25 - $49 / hr2 - 9Las Vegas, NV
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See all 2 projectsID Web Design & Development + SEO, PPC, Mobile Apps is a comprehensive web development company specializing in e-commerce solutions and full-stack web development. With 100% positive feedback from reviewers, clients consistently praise their project management, technical expertise, and exceptional customer service. Many clients, regardless of technical knowledge, appreciate the user-friendly and secure websites the company develops.
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$1,000+$25 - $49 / hr2 - 9Berlin, Germany
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See all 1 projectscreastr is a web development company that specializes in creating modern, user-friendly e-commerce platforms with multi-language support and secure payment integration. Their commitment to quality and attention to detail is highlighted in reviews, with 100% positive feedback on delivering scalable and efficient web solutions. Approximately 75% of reviewers commend their responsiveness and professional project management.
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$1,000+$50 - $99 / hr2 - 9
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See all 1 projectsDarkwater Digital is a digital marketing and web development company specializing in enhancing web presence and design. The feedback is overwhelmingly positive, with clients praising their responsiveness, cost-effectiveness, and ability to improve Google rankings. Approximately 100% of reviewers commend their professional and personal service, leading to increased client inquiries and satisfaction.
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Undisclosed$25 - $49 / hr10 - 49Auckland, New Zealand
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See all 3 projectsZapperr Software Solutions NZ/AU is a web development company specializing in custom website development, web application development, and integration with third-party applications. They consistently deliver high-quality, cost-effective projects on time, with 100% of reviewers highlighting their responsiveness and effective communication. Clients appreciate their creativity, technical knowledge, and alignment with client values.
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$1,000+$25 - $49 / hr2 - 9Lahore, Pakistan
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See all 1 projectsSynergistlab is a mobile app development company known for its strong expertise in coding and adaptability to industry changes. The feedback is overwhelmingly positive, with 100% of reviews highlighting their ability to meet and exceed expectations. Clients particularly appreciate their project management and effective communication, ensuring seamless integration with existing systems.
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$1,000+< $25 / hr10 - 49Vadodara, India
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See all 1 projectsUniqtech Solutions is a mobile app development company known for its excellent customer service and effective project management. The reviews reflect a 100% positive sentiment, with clients highlighting their impressive capabilities and timely delivery. Their culture fit and value for cost are also frequently mentioned as key strengths.
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$10,000+$50 - $99 / hr2 - 9București, Romania
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See all 4 projectsZynala is a distinguished web development company specializing in custom website development, web application development, and full-stack web development. The reviews reveal a 100% satisfaction rate, with clients consistently praising their project management, responsiveness, and problem-solving abilities. Notably, over 75% of the reviewers commend Zynala's ability to meet client specifications and deadlines with professionalism and dedication.
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$1,000+$25 - $49 / hr10 - 49Palladam, India
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See all 6 projectsNitrosoft Technologies is a dynamic web development company specializing in custom website development and full-stack web development solutions. Their reviews indicate a strong emphasis on creating user-friendly and effective online platforms, with 100% of reviewers highlighting the company's problem-solving approach and personalized solutions. Clients appreciate their seamless workflow and coordination, though some mention initial project management challenges. Overall, Nitrosoft Technologies receives highly positive feedback for their innovative and client-centric strategies.
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$50,000+$50 - $99 / hr50 - 249Oakland, CA
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See all 2 projectsBlue Trail Software is an app development company known for its high-quality work, effective communication, and timely delivery. With 100% positive feedback, clients appreciate their proactive approach and ease of team access. They consistently deliver projects on budget and are highly rated for their services and alignment with client values.
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$1,000+< $25 / hr10 - 49Noida, India
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See all 3 projectsSMDEVOPS is a versatile technology company offering services in web development, SEO, social media management, and app development. The company is consistently praised for its professionalism, effective communication, and cost-effective solutions. Approximately 100% of reviewers highlight their satisfaction with SMDEVOPS's work quality and communication, noting significant project successes such as increased web traffic and social media reach.
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$10,000+$150 - $199 / hr2 - 9New York, NY
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See all 5 projectsHAAS/créa is a versatile web development company known for expertise in custom website development and full-stack web development solutions. They excel in providing tailored web programming and online development services, particularly praised for their robust project management and consultative approach. Reviews show a 100% satisfaction rate, highlighting their commitment to excellence and timely delivery, with clients consistently impressed by their problem-solving capabilities and ability to enhance digital solutions.
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$1,000+$25 - $49 / hr2 - 9Kharkiv, Ukraine
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See all 1 projectsBravodev is a software development company specializing in creating, maintaining, and expanding SaaS solutions, particularly for the insurance sector. Client feedback is overwhelmingly positive, highlighting their high technical expertise, excellent communication skills, and dedication, with 100% of reviewers emphasizing their ambition. All reviews are positive, though one suggests improving day-to-day bug handling.
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$10,000+$25 - $49 / hr2 - 9
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See all 1 projectsASPA Softech LLP is a web development company excelling in SharePoint migrations, offering services like full-stack web development and custom web application development. The firm received overwhelmingly positive feedback, with 98.7% of users expressing satisfaction post-migration. Clients commend their effective communication, adherence to timelines, and the ability to resolve issues efficiently.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsBand-IT.space is a company specializing in web scraping and data automation solutions. They received positive feedback for their expertise and efficiency, with a 96-98% reduction in manual data checks. 100% of reviewers noted their strong project management and communication, though minor response delays were mentioned.
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$25,000+$50 - $99 / hr10 - 49Budapest, Hungary
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See all 1 projectsSquare21 is a web development company specializing in full-stack web development and custom website development. Reviews indicate a 100% satisfaction rate in terms of service continuity and system performance improvement. Clients praise their collaborative culture, professional project management, and positive attitude, though some suggest improvements in version control and handover processes.
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$1,000+< $25 / hr10 - 49Gandhinagar, India
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See all 3 projectsCodoffer Infotech is a web development company excelling in custom website development and web design. They received unanimous positive feedback, with reviewers highlighting their expertise in the latest market trends and their effective communication, even across different time zones. The company's dedication and knowledge were pivotal in enhancing their client's online presence.
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$5,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 4 projectsTriotech Systems provides comprehensive Web Development services, including Website Development and Web Programming, with a focus on creating end-to-end MVP prototypes and CRM systems. Reviews highlight their attentiveness, timely delivery, and strong alignment with client values, leading to successful long-term partnerships and impressive client growth.
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$10,000+$100 - $149 / hr10 - 49
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See all 1 projectsDigital Echoes is a digital marketing agency specializing in PR, online marketing, and brand identity creation. The company received overwhelmingly positive feedback, with 100% of reviewers praising their professionalism, impressive results, and friendly demeanor. Clients noted substantial growth in social media presence and engagement, highlighting the agency's expertise in delivering effective marketing strategies.
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$5,000+< $25 / hr50 - 249Prishtina, Kosovo
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See all 2 projectsSonnecto is a business process outsourcing company offering services in lead generation, customer support, software development, and digital marketing. Overall, they receive positive feedback, with clients praising their adaptability, effective project management, and strategic partnership. Approximately 90% of reviewers highlight their strong communication skills and innovative problem-solving approach, while some suggest expanding their service offerings.
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$1,000+< $25 / hr10 - 49Bengaluru, India
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See all 1 projectsBestWeb Ventures is a development and digital marketing company that provides services such as web development, MVP development, and digital marketing solutions. Their clients report 100% satisfaction with timely project delivery and valuable guidance, although they suggest improvements in project management tools for better usability.
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$10,000+$25 - $49 / hr10 - 49
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See all 50 projectsApp Crops is a web development company known for their expertise in website maintenance and updates. They consistently deliver projects on time, with 100% of reviewers impressed by their professionalism and the quality of their work. Clients appreciate their effective communication, with no areas for improvement mentioned.
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$1,000+$50 - $99 / hr50 - 249New York, NY
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See all 5 projectsMatch.dev is a web development company specializing in website development and UI/UX design, noted for their expertise in creating accessible websites. They have received overwhelmingly positive feedback, with 100% of reviews highlighting their transparency, effective communication, and ability to achieve significant improvements in website traffic and stakeholder satisfaction. Their proficiency in web programming and project management ensures seamless collaboration and successful project outcomes.
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$1,000+$100 - $149 / hr2 - 9Longmont, CO
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See all 4 projectsColorado SEO Design, primarily recognized as an SEO agency and web design company, has garnered overwhelmingly positive feedback from clients, with 100% of reviewers highlighting significant improvements in online presence and user experience. Clients have noted a 35% increase in organic search traffic and praised the company's professional project management and tailored solutions.
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$25,000+$50 - $99 / hr50 - 249Wrocław, Poland
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See all 19 projectsVazco is a comprehensive web development company excelling in full-stack web development, offering expertise in technologies like Meteor, Node.js, and React.js. They are highly commended for delivering high-quality solutions and maintaining excellent communication, even across time zones, with around 100% of reviews highlighting their technical expertise and proactive approach. Their ability to meet tight deadlines and offer strategic advice sets them apart.
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$5,000+< $25 / hr50 - 249Chiyoda City, Japan
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See all 1 projectsDIPROTECH is a development company specializing in app development and localization services. The company is noted for its robust technical foundation and strong project management skills, with 100% of feedback highlighting their proactive communication and responsiveness. Some reviewers suggest improvements in understanding cultural nuances for specific markets.
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Undisclosed$150 - $199 / hr10 - 49Jacksonville, FL
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See all 5 projectsfeature[23] is a versatile software development company specializing in creating custom applications and systems across various industries. The reviews highlight their technical expertise, with 100% of reviewers praising their ability to re-engineer and modernize existing platforms. Clients appreciate their flexibility and proactive project management, noting a strong focus on understanding client needs and integrating with existing operations. Overall, feature[23] is recognized for delivering high-quality, reliable solutions and maintaining excellent client relationships.
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$10,000+$25 - $49 / hr10 - 49
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See all 8 projectsAsterism Infosoft Pvt Ltd is a web development company specializing in Website Development, Web Application Development, and digital marketing. The company receives overwhelmingly positive feedback, with clients praising their responsiveness, personalized service, and effective project management. Approximately 100% of reviewers highlight their satisfactory project delivery and proactive communication.
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$1,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 1 projectsNelcosoft is a web development company specializing in Custom Website Development and Full-Stack Web Development. They are praised for their professional and organized project management, delivering user-friendly, innovative web designs with a focus on seamless e-commerce functionality and strong SEO integration. All reviewers expressed satisfaction with their services, demonstrating a 100% positive feedback rate.
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$5,000+$25 - $49 / hr10 - 49Multan, Pakistan
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See all 8 projectsDevVibe is a web development company specializing in website design and development, with a focus on crafting custom web solutions. Across their reviews, 100% of clients praised their strong project management and research capabilities, highlighting timely delivery and excellent communication. Clients appreciate their professional yet friendly approach, with no significant areas for improvement noted.
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$1,000+$25 - $49 / hr50 - 249Nanakaramguda, India
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See all 4 projectsiGenero Web Solution Private Limited is a web development company specializing in custom website development and front-end development. They are praised for their technical expertise and understanding of user experience, with 100% of reviewers noting their ability to enhance project visibility and functionality. Some suggest potential for more innovative designs, yet their commitment to client-centric solutions is consistently highlighted.
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$10,000+$50 - $99 / hr10 - 49Zagreb, Croatia
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See all 3 projectsSamurai Digital is a web development company specializing in web design and custom website development. The reviews reflect a high level of satisfaction, with 100% of clients praising their professionalism, responsiveness, and ability to deliver functional, optimized, and user-friendly websites. Samurai Digital is recognized for their innovative solutions and effective project management, making them a trusted partner for digital product creation.
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$10,000+$50 - $99 / hr50 - 249
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See all 2 projectsSchnell Solutions Limited is a web development company specializing in custom website development and web application development. With a focus on bringing clients' ideas to life, they have consistently received positive feedback for their efficient project management and exceptional attention to detail. 100% of reviewers highlight their professionalism and ability to turn concepts into functional digital platforms, leading to high client retention rates.
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$1,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 2 projectsElegant Designs - Mobile App & Web Developers is a company specializing in mobile app and e-commerce website development. Across their reviews, clients expressed high satisfaction, citing smooth workflows, timely completion of projects, and effective communication. Positive feedback is prevalent, with 100% of reviewers highlighting project management effectiveness and responsiveness as key strengths.
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$1,000+< $25 / hr10 - 49Surat, India
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See all 1 projectsRising Star Infotech is a web development company specializing in website development and web application development. With strong client satisfaction, 100% of reviews highlight their technical expertise and timely delivery. Clients report a 45% increase in web traffic post-collaboration, showcasing their proficiency in enhancing user interface and performance.
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List of the Top 15 JavaScript Development Companies
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$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$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 -
$10,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.4/40.019.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development60% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
37.7/40.018.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.9/40.019.6/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.3/40.019.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.9/40.018/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% 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 -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Web Development40% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.8/40.017/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Web Development45% JavaScript40% 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 - 9,999L'viv, Ukraine
Ability to deliver
38.8/40.019/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.2/40.018.2/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development33% JavaScript90% Other -
$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+< $25 / hr250 - 999Kolkata, India
Ability to deliver
36.3/40.019/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
65% Web Development20% JavaScript35% Other -
$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 -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
38.2/40.018.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$1,000+< $25 / hr1,000 - 9,999Los Angeles, CA
Ability to deliver
36.9/40.019.6/20 Reviews9.3/10 Clients & Experience8/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.8/40.018.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.4/40.016.4/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
37.9/40.018.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.1/40.019.4/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% 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.