Top JavaScript Developers
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Featured
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 91 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development and engineering service provider specializing in full-stack web development and custom website development. The company consistently receives positive feedback, with approximately 95% of reviews highlighting their high-quality developers and management excellence. Clients frequently commend their project management skills and responsiveness, making them a reliable partner for complex web programming and online development projects.
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$5,000+< $25 / hr50 - 249Kolkata, India
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See all 36 projectsPrasarnet Consulting Services Pvt. Ltd. is a web development company specializing in custom website development and SEO optimization. The feedback reflects positively on their communication and technical capabilities, with 100% of reviewers highlighting their excellent project management and value alignment. While they excel in attention to detail and responsiveness, one reviewer suggests potential improvement in team-wide communication clarity.
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$5,000+$50 - $99 / hr10 - 49Glasgow, Scotland
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See all 9 projectsUncover Commerce is a web development company specializing in custom website development and e-commerce solutions. With a strong focus on full-stack web development, 100% of reviews highlight their exceptional project management and ability to tailor websites to specific client needs. Clients consistently praise their professionalism, attention to detail, and effective communication, resulting in user-friendly and successful websites.
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$1,000+$25 - $49 / hr10 - 49Dhaka, Bangladesh
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See all 4 projectsPixelean is a web development company specializing in custom website redesign and full-stack web development. They have received overwhelmingly positive feedback for their professionalism, reliability, and high-quality services, with 100% of reviewers mentioning their impressive attention to detail and responsive communication. While minor suggestions for improvement include direct communication with developers, clients highly recommend Pixelean for their expert project execution.
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$10,000+$25 - $49 / hr10 - 49Mumbai, India
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See all 1 projectsThe Fast Way is a web development company specializing in custom website development and CRM solutions. Their reviews highlight a strong ability to deliver end-to-end web programming services with a focus on full-stack web development, responsive design, and strategic technical support. Notably, 100% of reviewers emphasize their responsiveness, professionalism, and tailored solutions that improve operational efficiency.
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$25,000+$50 - $99 / hr10 - 49
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See all 6 projectsMobius Team Ltd is a web development company specializing in solutions involving API and Laravel for data synchronization and exploitation. Reviews highlight their adaptability and rapid response times, with 100% of feedback noting successful project delivery. Some clients suggest improvements in dashboard interface design, achieved after collaboration.
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$5,000+$25 - $49 / hr10 - 49Wien, Austria
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See all 9 projectsMOVE Digital is a comprehensive web development company specializing in custom website development, UI/UX design, and full-stack web development. Across the reviews, 100% of clients reported positive outcomes, including enhanced digital visibility and increased user engagement. Their professional project management and proactive solutions are frequently highlighted, with 83% of reviewers praising their professionalism and high-quality results in web programming and design.
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$10,000+$50 - $99 / hr10 - 49
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See all 5 projectsWiseUp is a versatile technology solutions provider specializing in web and app development, UX/UI design, and digital product management. Across multiple reviews, clients consistently praise WiseUp for their professionalism, technical expertise, and effective project management. Approximately 80% of reviewers highlighted WiseUp's clear communication and adherence to deadlines, while around 70% mentioned their ability to understand both technical and commercial needs. The feedback is overwhelmingly positive, with no significant areas for improvement noted by clients.
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$5,000+$25 - $49 / hr10 - 49
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See all 2 projectsWizy Vietnam is a full-stack web development company specializing in web application development with a strong focus on security. The reviews highlight their reliability and ability to deliver quality designs and development at a reasonable price. Over 80% of reviewers praised their project management skills and capacity to quickly provide additional resources when needed.
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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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$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+$200 - $300 / hr10 - 49Wien, Austria
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See all 1 projectsMargelo is a mobile app development company specializing in iOS and Android applications using React Native. Reviews highlight their exceptional ability to create high-performing apps, with a particular focus on UI smoothness and performance. A significant 100% of the feedback is positive, emphasizing their commitment to quality and effective project management, though some note the need for more control in the development process.
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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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UndisclosedUndisclosed50 - 24942450 Hayes Rd, Suite #3, MI
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See all 3 projectsJRD Systems is a technology solutions provider specializing in cloud services, data processing, and application development. Reviews indicate high client satisfaction, with 100% of clients noting efficiency gains and responsiveness. Customers appreciate their strong project management, timely delivery, and clear communication, although more frequent progress updates could enhance transparency further.
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$25,000+$150 - $199 / hr2 - 9Praha, Czech Republic
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See all 3 projectsWithSeismic: The Secret Startup Weapon for Ambitious Brands is a web development company specializing in custom web application development and data automation solutions. They received 100% positive feedback, with clients highlighting their ability to simplify complex tasks and deliver projects on time. Notably, 100% of reviewers praised their alignment of company values and effective communication.
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$1,000+$25 - $49 / hr10 - 49Surat, India
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See all 5 projectsGeek Web Solution is a web development company specializing in full-stack web development, web design, and custom website development. Reviews highlight their exceptional technical precision, timely project delivery, and responsive communication. Impressively, 100% of customers reported satisfaction with their development work, citing seamless project management and flawless design execution as key strengths.
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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 web development company specializing in custom website development, web design, and online development services. The company consistently receives positive feedback, with 100% of reviewers praising their professionalism, collaborative project management, and ability to deliver functional, aesthetically pleasing solutions. Many clients highlight their effective communication and the value they provide, making them a recommended choice for web development projects.
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$1,000+$100 - $149 / hr2 - 9Downpatrick, Northern Ireland
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See all 3 projectsTriggerAppy Ltd is a software development company specializing in app and web development, online booking systems, and payment integrations. Their clients consistently commend their professionalism, responsiveness, and dedication, with 100% of reviewers highlighting their excellent communication and innovative solutions. The company is praised for delivering high-quality, timely projects that significantly enhance customer satisfaction and business operations.
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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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$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 4 projectsFlora Fountain is a dynamic company specializing in Website Development and Web Design. They receive overwhelmingly positive feedback, with 100% of reviewers expressing satisfaction with their creative and responsive approach. Clients praise Flora Fountain's expertise in custom website development and SEO, highlighting their ability to manage projects effectively and deliver engaging, tailored online solutions.
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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, a web development company, excels in website and web application development, offering full-stack solutions and custom website development. The company receives overwhelmingly positive feedback, with approximately 90% of reviewers highlighting their strong project management and innovative use of technology. Clients appreciate their commitment to quality and customer satisfaction, though a few suggest potential cost reductions.
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$25,000+$50 - $99 / hr50 - 249
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See all 1 projectsLeapfrog Technology, Inc. is a custom software development company specializing in full-stack development, particularly with React. The overall feedback is positive, highlighting their impressive project management and quick problem-solving abilities, as noted by 100% of reviewers. However, some reviews suggest improvement in coding review participation. Their adaptability and effective communication tools are frequently praised.
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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 app and web development, known for their expertise in frameworks like Ionic. Reviews consistently highlight their flexibility, strong communication skills, and technical proficiency, with a noted emphasis on reliability and prompt responsiveness. Approximately 90% of reviews emphasize their commendable project management and customer service, while only a few suggest minor improvements in resource availability during peak times.
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$10,000+$100 - $149 / hr2 - 9Fleet, England
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See all 3 projectsDeuce is a web development company specializing in custom website development and web application development. The reviews highlight their strong communication skills and reliability, with 100% of clients appreciating their responsiveness and ability to deliver projects ahead of schedule. They excel in full-stack web development, ensuring a seamless alignment with client needs and brand identities.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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See all 12 projectsRT Technolab is a proficient web development company known for its expertise in Website Development, Web Design, and Web Programming. The company consistently receives positive feedback, with approximately 90% of reviews highlighting their attention to detail, timely delivery, and effective communication. Clients particularly commend RT Technolab's commitment to understanding project needs and offering tailored solutions.
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$5,000+$25 - $49 / hr10 - 49Chișinău, Moldova
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See all 10 projectsNaqqa Software is a proficient web development company specializing in custom website development, web design, and web application development. The company receives overwhelmingly positive feedback, with approximately 100% of reviewers praising their responsive communication, professionalism, and ability to deliver projects on time. Clients particularly appreciate their transparency and patient guidance throughout the development process.
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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 specializing in complex back-end solutions and responsive website development. The reviews highlight their expertise in WordPress development, excellent code quality, and strong communication skills. With 100% positive feedback on their perseverance and professionalism, ShineForth is recommended for complex projects requiring clean, well-documented code and effective project management.
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Undisclosed$50 - $99 / hr50 - 249Wrocław, Poland
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See all 8 projectsAntologic is a web development company known for their expertise in developing custom platforms. The feedback is overwhelmingly positive, highlighting their high-quality work and effective project management, with 100% of reviewers commending their professionalism and ability to meet deadlines. They excel in building data exchange solutions and maintain strong client satisfaction.
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$10,000+$25 - $49 / hr2 - 9Ħaż-Żabbar, Malta
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See all 4 projectsInboundMuse is a technologically adept software development company specializing in AI, blockchain, and integrated digital solutions. Reviews indicate consistent satisfaction, with 100% positive feedback highlighting their professionalism, timely delivery, and customer-centric approach. Approximately 75% of reviewers praised InboundMuse's flexibility and innovative problem-solving capabilities. They are highly recommended for clients seeking sophisticated, tailor-made tech 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 web development company specializing in custom website development, full-stack web development, and web application development. Client feedback is overwhelmingly positive, with 100% satisfaction reported. Reviewers highlight HighSolutions' excellent communication, proactive project management, and high-quality deliverables, noting their ability to meet deadlines and exceed expectations in both design and functionality.
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$1,000+$50 - $99 / hr2 - 9
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See all 4 projectsorange5 LLC is a web development company specializing in custom website development and web application development. They have received 100% positive feedback from clients, who appreciate their flexibility, professionalism, and ability to deliver on time and on budget. Their expertise in creating tailored solutions has significantly improved clients' business operations and platforms.
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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 specializing in custom website development, front-end design, and back-end development. The firm is commended for its quality work, professionalism, and cost-effectiveness, with 100% of reviewers highlighting its ability to meet client needs and deliver projects on time. Reviewers also appreciate the team's proactive approach and clear communication throughout the project's lifecycle.
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$1,000+< $25 / hr10 - 49Hyderabad, India
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See all 4 projectsPoulima Infotech Private Limited is a versatile software and app development company, specializing in web and mobile applications, custom software, and UI/UX design. Approximately 100% of reviewers commend their project execution and responsiveness, highlighting their ability to meet client needs effectively and deliver user-friendly, functional designs. Their transparent communication and proactive approach are frequently praised as unique strengths.
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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+< $25 / hr1,000 - 9,999New Delhi, India
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See all 116 projectsProbey Services is a comprehensive web development company specializing in creating secure, user-friendly platforms tailored to client needs, such as custom website development and full-stack web development. Reviewers consistently praise their attentive project management and ability to meet deadlines, with 100% reporting positive outcomes, including increased engagement and streamlined workflows. Their responsive designs and strategic insights make them a preferred choice for businesses seeking effective online solutions.
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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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$10,000+$25 - $49 / hr10 - 49Madrid, Spain
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See all 3 projectsredradix is a Web Development company specializing in Front-End Development and Web Application Development. The majority of feedback is positive, highlighting their expertise in usability and presentation, as noted by 100% of reviewers. Clients appreciate their adaptability and project management skills, although initial expertise leaned more towards frontend work.
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$1,000+$25 - $49 / hr50 - 249Islamabad, Pakistan
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See all 2 projectsDynamologic Solutions is a web development company specializing in back-end development and custom website solutions. According to reviews, 100% of clients praised their excellent customer service and work ethic. They effectively resolved complex issues, enabling clients like PickDraft.com to achieve fully functional websites, with no significant areas for improvement noted.
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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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$1,000+< $25 / hr10 - 49Odesa, Ukraine
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See all 5 projectsSynergy Technical Group is a web development company known for its technical expertise and effective communication. The company specializes in Custom Website Development and Front-End Development, with 100% positive feedback emphasizing its modern design solutions and fast response times. Reviewers appreciate their on-time delivery and professional approach, although a quality check was suggested for improvement.
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$5,000+$25 - $49 / hr10 - 49
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See all 3 projectsOYKOS DEVELOPMENT is a web development company specializing in full-stack web development and system engineering. They have received overwhelmingly positive feedback, with clients praising their transparency, reliability, and effective communication. Notably, 100% of reviewers highlighted the team's commitment to meeting project milestones and their adaptability to client needs.
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List of the Top 15 JavaScript Development Companies
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$75,000+$100 - $149 / hr50 - 249Vancouver, Canada
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
90% Web Development50% JavaScript10% Other -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
60% Web Development50% JavaScript40% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.7/40.018.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Web Development40% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
38.7/40.019.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development90% JavaScript50% Other -
$10,000+$50 - $99 / hr50 - 249Amsterdam, Netherlands
Ability to deliver
39.1/40.019.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$5,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$1,000+< $25 / hr250 - 999Walpole, MA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.2/40.019.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development15% JavaScript70% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37/40.018/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$10,000+$25 - $49 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.1/40.016.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.1/40.018.2/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+$50 - $99 / hr10 - 49Covina, CA
Ability to deliver
37.5/40.017.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
55% Web Development80% JavaScript45% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.3/40.018.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.5/40.016.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
45% Web Development10% JavaScript55% Other -
$25,000+$50 - $99 / hr50 - 249L'viv, Ukraine
Ability to deliver
39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Web Development40% JavaScript70% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.1/40.016.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.5/40.015.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$25,000+$50 - $99 / hr10 - 49Wrocław, Poland
Ability to deliver
38.1/40.018.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development70% JavaScript60% Other
Top JavaScript Development Agencies
A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.
Most agencies bundle multiple offerings so clients can access full product life-cycle support:
- Discovery workshops & technical consulting
- UI/UX design and prototyping
- Front-end SPA or PWA development
- Server-side development with Node.js or Deno
- API design, GraphQL, and microservices architecture
- QA automation & performance testing
- DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
- Post-launch maintenance and feature sprints
Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.
Clutch data shows project budgets range widely:
- MVP or small web app - $15,000–$50,000
- Mid-size product build - $50,000–$200,000
- Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.
- Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
- Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
- Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
- Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
- Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.
Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.
- Guaranteed timelines without discovery
- No access to source code repositories during the engagement
- Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
- Low developer retention or high turnover
- Vague pricing models or hidden fees
If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution
- Which JavaScript frameworks do you specialize in, and why?
- Can you walk me through a recent project with similar complexity?
- How do you ensure code quality—linting, peer reviews, automated tests?
- What is your approach to scalability and performance optimization?
- How will we communicate and track progress (tools, meeting cadence)?
- Who owns the intellectual property and source code upon project completion?
Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.
A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.
Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.