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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$1,000+$100 - $149 / hr2 - 9
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See all 3 projectsPixel Hero is a Web Development company known for its expertise in Web Design and Custom Website Development. With 100% positive feedback, clients praise their efficiency, problem-solving skills, and continuous support. Approximately 50% of reviewers highlight their impressive communication and project management abilities, affirming Pixel Hero's commitment to client satisfaction and long-term partnerships.
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$1,000+$25 - $49 / hr10 - 49Anand, India
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See all 1 projectsHi-Lab Solution is a web development company specializing in custom website development, web design, and brand identity services. Their reviews highlight impressive creativity, unique web concepts, and satisfactory outcomes, with 100% positive feedback on their ability to exceed expectations and generate inquiries through the website.
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$1,000+$25 - $49 / hr10 - 49Ludhiana, India
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See all 2 projectsSJ Solutions & Infotech offers Website Development services, primarily focusing on Web Design and Web Programming. Their reviews highlight effective project management, timely delivery, and significant reductions in data entry errors. Clients appreciate their collaborative approach and the direct access to their team, enhancing communication and ensuring project success.
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$1,000+$25 - $49 / hr2 - 9Cruz Quebrada, Portugal
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See all 7 projectsForwwward Studio is a web development company specializing in custom website development and design, frequently praised for their expertise in creating bespoke websites and landing pages. With 100% positive feedback, clients commend their professionalism, creativity, and transparent communication. Approximately 80% of reviews highlight their strong culture fit and alignment with company values, emphasizing their dedication to client satisfaction.
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$1,000+< $25 / hr50 - 249Kolkata, India
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See all 2 projectsA1 Future Technologies Pvt. Ltd. is a web development company specializing in custom website development and web design. Based on client feedback, 100% of reviewers report satisfaction with their responsive project management and effective online development solutions, highlighting cost-effectiveness and excellent customer service as key strengths.
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$10,000+$50 - $99 / hr2 - 9
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See all 3 projectsDigital Creators Network is a web development company specializing in custom website development and web design. With 100% positive feedback, clients commend their transparent communication, proactive approach, and timely delivery. The company is praised for its professional service and responsive project management, making them a reliable choice for online development projects.
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$1,000+$25 - $49 / hr2 - 9Nicosia, Cyprus
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See all 6 projectsGREEN INTERACTIVE MEDIA CY LTD is a web development company renowned for its proficiency in custom website development and full-stack web development. With consistent positive feedback, 100% of clients commend their professionalism, timely delivery, and responsiveness. They excel in designing user-friendly, responsive websites and maintaining strong client relationships, making them a preferred choice for web programming and online development projects.
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$1,000+$25 - $49 / hr2 - 9Kraków, Poland
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See all 10 projectshauerpower is a web development company offering services such as full-stack web development, custom website development, and web programming. Across their reviews, 80% of clients highlight their effective communication and professional project management. Many clients appreciate their adaptability and patience, with 60% noting impressive responsiveness and design execution, although some mention challenges with backend intuitiveness post-project completion.
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$10,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 1 projectsKalion.Digital (ex.Monochrome) is a development company specializing in creating interfaces for learning management systems. The feedback highlights their strong problem-solving skills and effective collaboration, with approximately 100% of the reviews being positive. Clients appreciate their user-friendly designs and the team's capacity to adapt and expand their knowledge in new areas.
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$1,000+$25 - $49 / hr2 - 9
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See all 7 projectsNextG is a web development company specializing in custom website development, full-stack web development, and web application development. With consistently positive feedback, 100% of reviewers commend their responsiveness and adaptability. Clients appreciate NextG's ability to deliver on time, their attention to detail, and seamless integration of new features, enhancing both design and functionality across various platforms.
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Undisclosed$25 - $49 / hr10 - 49Liptovsky Mikulas, Slovakia
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See all 7 projectsSTARBUG is a web development company specializing in web application development and programming. Their clients consistently praise their timely project delivery and flexibility, with 100% of reviews highlighting attributes such as excellent communication and culture fit. STARBUG's standout services include full-stack web development and custom website development, facilitating successful digital solutions for complex projects.
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$10,000+$50 - $99 / hr10 - 49Encinitas, CA
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See all 1 projectsApp Design Company is a development firm specializing in application design, branding, and software development for both iOS and Android platforms. Overall feedback is overwhelmingly positive, emphasizing the company's flexibility, industry knowledge, and strong project management. Impressively, 100% of users continued using their platform after a free trial, highlighting its user-friendliness and effectiveness.
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$10,000+$50 - $99 / hr2 - 9Rotterdam, Netherlands
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See all 2 projectsStudio Ollala is a design and development company specializing in user experience (UX) research, UI design, and application development. The company is highly commended for its effective communication and deep understanding of complex products, with 100% positive feedback highlighting their attention to detail and user-friendly designs. Reviewers particularly appreciate their ability to re-define value propositions and create intuitive, component-based design systems.
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$1,000+$25 - $49 / hr10 - 49Osijek, Croatia
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See all 3 projectsJaspero Ltd is a web development company specializing in creating custom websites. Review feedback is overwhelmingly positive, with 100% of respondents noting improved customer satisfaction and increased brand visibility. Clients commend their commitment, accessibility, and timely project delivery. Their services significantly enhance business visibility and competitiveness.
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$10,000+$50 - $99 / hr10 - 49
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See all 5 projectsWiseUp is a versatile technology company specializing in web development, application updates, and feature integration for diverse sectors, such as marketing, consulting, and conservation. The reviews reflect an overwhelmingly positive sentiment, with nearly all feedback highlighting WiseUp's professionalism, technical expertise, and effective communication. Notably, 100% of reviewers praised their project management abilities and the ability to deliver on time, fostering strong client relationships.
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$1,000+$25 - $49 / hr10 - 49L'viv, Ukraine
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See all 3 projectsDevRecords is a full-stack web development company that excels in delivering reliable, scalable, and modular solutions. With 100% positive feedback, clients praise their sense of duty, creativity, and effective project management. Their approach makes them feel like an in-house team, consistently providing high-quality service and proposing innovative alternatives.
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$5,000+$25 - $49 / hr10 - 49
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See all 3 projectsJuzzzt Studio is a web development company specializing in full-cycle web design and development, including front-end and back-end development, as well as website optimization. Approximately 100% of the reviews highlight their exceptional project management and communication skills, with clients appreciating their timely delivery and deep understanding of client needs.
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$5,000+$25 - $49 / hr10 - 49
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See all 2 projectsWizy Vietnam is a web development company specializing in full-stack web development and web application development. Reviews highlight their reliability and ability to deliver quality web design and development at reasonable prices. With 100% positive feedback regarding project management and resource flexibility, they excel in Agile processes and can quickly provide additional development resources.
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$10,000+$25 - $49 / hr50 - 249
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See all 2 projectsSyoft is a technology solutions provider specializing in web and mobile application development, offering services such as telehealth platforms and ERP systems. Reviews highlight their impressive technical proficiency and effective project management, with 100% positive feedback on their communication and ability to understand client needs. Clients appreciate their responsiveness and innovation in delivering tailored solutions.
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$5,000+$25 - $49 / hr50 - 249Plano, TX
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See all 2 projectsReveation Labs is a web development company specializing in Website Development and Web Design. The company consistently receives positive feedback for its efficient project management and rapid delivery, completing a high-quality website in just two and a half days. Clients commend their speed and quality, with 100% of reviewers expressing satisfaction and no areas noted for improvement.
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$1,000+$50 - $99 / hr10 - 49
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See all 3 projectsRank SEO Agency is an SEO agency known for its professionalism and industry knowledge. With a team of 6-10 employees, they effectively manage client expectations and communication, leading to increased online visibility. The agency receives overwhelmingly positive feedback for their diligence and smooth project execution, with no significant areas for improvement noted.
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$10,000+$50 - $99 / hr2 - 9Lukavica, Bosnia and Herzegovina
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See all 1 projectsRecursion is a technology firm specializing in custom web application development and AWS infrastructure establishment. Their services demonstrate a high level of organization, transparency, and responsiveness, consistently delivering projects ahead of schedule. Reviewers commend Recursion's exceptional project management and quality of work, with 100% positive feedback and no noted areas for improvement.
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$5,000+$50 - $99 / hr2 - 9Bali, Indonesia
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See all 2 projectsSandikala Studio is a distinguished web development company, excelling in custom website development and full-stack web development services. The studio receives overwhelmingly positive feedback, with notable commendation for their proactive research initiatives and effective communication, as mentioned by 100% of reviewers. Their commitment to understanding client needs and delivering timely, tailored solutions is frequently highlighted as a key strength.
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$25,000+$150 - $199 / hr50 - 249Norcross, GA
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See all 2 projectsThis Dot is a web development company specializing in Front-End Development and JavaScript SDK implementation. They are praised for their developer tools expertise and commitment to community participation. Feedback indicates a 100% satisfaction rate, with clients valuing their responsive communication and on-time delivery.
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$5,000+$100 - $149 / hr10 - 49Anaheim, CA
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See all 8 projectsWebstract Marketing is a distinguished web development company renowned for its expertise in custom website development and web design. With overwhelmingly positive feedback, clients consistently praise their professionalism, attention to detail, and ability to deliver aesthetically pleasing and functional web solutions. Approximately 100% of reviewers highlight their exceptional project management and responsiveness, underscoring their commitment to client success.
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$10,000+$50 - $99 / hr10 - 49Mumbai, India
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See all 10 projectsWEQ Technologies is a web development company specializing in Website Development, Web Design, and Custom Website Development. With 80% of reviews highlighting their timely delivery and clear communication, clients appreciate their responsiveness and adaptability. Their project management is well-regarded, though some suggest improvements in visualization and strategy.
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$10,000+$50 - $99 / hr10 - 49
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See all 1 projectsDigitSense is a digital marketing company specializing in brand positioning and online development. Reviews indicate a strong emphasis on effective project management and successful deliverables, with 100% positive feedback regarding their attention to detail and support. They are noted for providing good value for cost, aligning with client values, and meeting project objectives efficiently.
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$1,000+$25 - $49 / hr10 - 49
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See all 3 projectsEnvazia Technologies is a web development company specializing in creating user-friendly and accessible web solutions. They were instrumental in developing a student portal for an educational institution, resulting in high adoption rates and improved performance metrics. Reviewers highlight their dedication and effective project management, with 100% positive feedback on their responsiveness and work quality.
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$5,000+< $25 / hr50 - 249
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See all 12 projectsNavyug Infosolutions is a full-stack web development company offering comprehensive services in both front-end and back-end development. They have received overwhelmingly positive feedback, with 100% of clients expressing satisfaction regarding their technical expertise and project management. Clients particularly commend their ability to implement complex algorithms and innovative solutions while maintaining effective communication and agile methodologies.
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$25,000+$50 - $99 / hr50 - 249
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See all 1 projectsLeapfrog Technology, Inc. offers custom software development services specializing in full stack development, particularly using React. The overall feedback is positive, highlighting their speed, efficiency, and effective project management. Clients appreciate their ability to quickly identify and resolve issues, although there is room for improvement in their involvement in coding reviews.
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$1,000+Undisclosed2 - 9Panamá, Panama
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See all 3 projectsSpuenz is a web development company specializing in web design, custom website development, and web programming. They have received predominantly positive feedback, with clients praising their quick work, good quality, and flexibility. Approximately 100% of reviewers highlight the timely delivery of services, while 50% suggest improvements in planning scope and cost.
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$5,000+$50 - $99 / hr10 - 49
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See all 4 projectsBudacode is a software development company specializing in mobile app development, particularly using the Ionic framework. Their clients consistently praise their technical expertise, reliability, and proactive project management, with approximately 90% positive feedback highlighting their effective communication and flexibility. While they occasionally face resource availability challenges, their dedication to client satisfaction remains a strong theme across reviews.
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$1,000+$25 - $49 / hr2 - 9Sosnowiec, Poland
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See all 5 projects360px is a proficient web development company specializing in WordPress solutions, including web design and front-end development. The reviews are overwhelmingly positive, with 100% satisfaction regarding their quick, reliable, and high-quality service. Many clients commend their exceptional communication skills and responsive support, often highlighting their ability to meet and exceed project goals efficiently.
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$5,000+$50 - $99 / hr2 - 9Central, Hong Kong
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See all 1 projectsTurtle Media is a design agency specializing in UX/UI design, known for its effective design skills and rapid understanding of client requirements. The company has received 100% positive feedback regarding its communication and ability to meet project needs, with reviewers praising their excellent design capabilities and workflow efficiency.
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$10,000+$100 - $149 / hr10 - 49Omaha, NE
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See all 3 projectsShineForth is a web development company focused on Web Programming and Back-End Development. Feedback highlights their excellent code quality, responsiveness, and project management, with 100% positive reviews emphasizing their effective communication and perseverance in complex projects. Some reviewers mention the need for improved complexity assessment, but overall satisfaction is evident.
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Undisclosed$25 - $49 / hr2 - 9Balneário Camboriú, Brazil
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See all 3 projectsBeyonders - Digital Solutions is a web development company specializing in designing and developing custom, visually appealing websites with a strong focus on web design and online development. Overall, feedback is overwhelmingly positive, with clients praising their excellent communication, creativity, and high-quality project outcomes. Notably, 100% of reviewers commend their project management and personalized approach to client needs.
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Undisclosed$50 - $99 / hr50 - 249Wrocław, Poland
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See all 8 projectsAntologic is a web development company specializing in custom website development and web application development. Reviewers unanimously praise their high-quality work, timely delivery, and effective communication, with 100% satisfaction reported regarding project management and client interactions. Clients highlight Antologic's expertise and professionalism, noting they consistently meet deadlines and produce exceptional results.
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$10,000+$200 - $300 / hr2 - 9Minneapolis, MN
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See all 4 projectsTempo by Clockwork is a web development company specializing in Website Development, Custom Website Development, and Web Application Development. Reviews indicate a 100% satisfaction rate, with clients praising their responsiveness, efficient project management, and ability to meet deadlines. Approximately 75% of reviewers highlighted their ability to tailor solutions to specific client needs, ensuring functional and aesthetically pleasing websites.
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$5,000+$100 - $149 / hr50 - 249Scottsdale, AZ
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See all 10 projectsExquisite Software is a custom software development company, highly praised for their diligence and adaptability in executing projects. With consistently positive feedback, they are noted for their ability to enhance project ideas and deliver results punctually. Approximately 100% of reviewers highlight their project management proficiency and responsiveness to changing client needs.
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$10,000+$25 - $49 / hr2 - 9Ħaż-Żabbar, Malta
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See all 4 projectsInboundMuse is a versatile technology company specializing in blockchain, AI, and integrated systems development. They have consistently received positive feedback, with 100% of clients highlighting their professionalism, timely delivery, and adaptability. Clients appreciate their customer-centric approach, technical innovation, and effective project management, making them a preferred partner for complex technology solutions.
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$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 6 projectsSSTech System Solutions Pvt Ltd is a web development company specializing in custom website development, e-commerce integration, and logo design. Reviewers consistently praise their effective project management and communication, with 100% highlighting their professionalism and timeliness. The company's commitment to providing valuable feedback and solutions has been noted as particularly impressive.
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$5,000+$50 - $99 / hr10 - 49Poznań, Poland
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See all 9 projectsHighSolutions is a professional Website Development company acclaimed for delivering comprehensive web solutions, including Web Programming and Custom Website Development. With 100% positive feedback from reviewers, clients consistently praise their communication, high-quality deliverables, and proactive project management. The company excels in creating user-friendly platforms that meet specific client needs and expectations, enhancing both user engagement and operational efficiency.
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$1,000+$50 - $99 / hr2 - 9Navi Mumbai, India
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See all 5 projectsPiVisions Direct LLP is a web development company offering comprehensive services such as full-stack web development, custom website development, and web application development. Overall, the feedback is overwhelmingly positive, with clients praising their professionalism, attention to detail, and ability to deliver quality work on time. Approximately 100% of reviewers appreciated their cost-effective solutions and effective communication.
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$1,000+$50 - $99 / hr2 - 9Wrocław, Poland
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See all 1 projectsITBees is a software development company known for its expertise in creating custom applications, particularly in optimizing industrial processes. Their robust project management approach, characterized by flexibility, commitment, and timely communication, receives positive feedback across 100% of reviews. Clients appreciate their effective solutions, which significantly enhance operational efficiency, evident from achieving a 95% reduction in preparation time and an 80% error reduction in CNC drilling processes.
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$1,000+$50 - $99 / hr2 - 9
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See all 5 projectsBest Website Nashville specializes in Website Development, Web Design, and Web Programming services. The overall feedback from clients highlights their exceptional project management, effective communication, and ability to deliver functional, user-friendly, and smoothly operating websites. Clients consistently commend their professional approach and adherence to deadlines.
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$5,000+$50 - $99 / hr2 - 9Cairo, Egypt
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See all 8 projectsPS Solutions is a software development company known for its technical competency and professional project management. They specialize in database design, software solutions, and mobile app development, delivering services with flexibility and customer alignment. Across their reviews, 100% of clients commend their professionalism, while 60% highlight their adaptability and dedication. Potential improvements include faster app updates and enhancing graphic design capabilities.
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$10,000+$25 - $49 / hr10 - 49Madrid, Spain
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See all 3 projectsredradix is a web development company specializing in web application development and front-end development using technologies like React. Overall, 100% of the reviews are positive, highlighting their strong usability and presentation skills, which have significantly enhanced client perception. Reviewers noted their expertise in front-end development but suggested room for growth in back-end capabilities.
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$5,000+< $25 / hr10 - 49Jaipur, India
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See all 5 projectsZonex Technologies Private Limited is a reputable development firm specializing in Shopify and web application development. Clients consistently praise their professionalism, quick task turnaround, and effective project management. Notably, 100% of reviewers highlight the team's responsiveness and commitment to project deadlines, contributing to significant business growth and customer satisfaction. Opportunities for improvement are minimal, with only one suggestion for enhanced task transparency.
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$5,000+$25 - $49 / hr2 - 9Reconquista, Argentina
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See all 3 projectsInnovare Software Agency is a prestigious software company specializing in web application development and B2B e-commerce solutions. Reviews highlight their professionalism and efficiency, with 100% of clients praising their ability to deliver projects swiftly, as evidenced by a project completion time reduced from 90 to 55 days and a +20% increase in sales post-launch.
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$25,000+$50 - $99 / hr10 - 49Zagreb, Croatia
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See all 2 projectsValere Margins is a web development company that specializes in custom web solutions, offering services such as full-stack web development and web application development. Feedback from reviews highlights their impressive knowledge and dedication, with 100% positive comments noting smooth communication and a 50% overachievement of initial project goals.
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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.