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 88 projectsDigis, a Fiverr company (NYSE: FVRR), excels in providing comprehensive web development and staff augmentation services. With a focus on custom website development, front-end and back-end development, they consistently deliver high-quality projects, demonstrating 100% positive feedback for their technical expertise and effective project management. Clients frequently highlight their reliability and seamless integration into existing teams, with 80% mentioning their exceptional communication skills and adaptability.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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See all 1 projectsAppteg Technologies is a Web Development company specializing in creating high-end websites and shops. They received positive feedback for their skilled team, effective communication, and timely delivery, with 100% of reviewers highlighting their project management and work ethic.
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$1,000+$25 - $49 / hr2 - 9Chhapi, India
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See all 1 projectsQuba Infotech is a web development company that excels in full-stack web development and web application development, with particular expertise in Java, Spring Boot, and AWS deployment. The company has received overwhelmingly positive feedback, with 100% of reviewers highlighting their proactive communication, high-level expertise, and strong client bonding. They are noted for delivering robust, scalable solutions and demonstrating exceptional project management skills.
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$1,000+$25 - $49 / hr2 - 9Rīga, Latvia
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See all 1 projectsWebsalutem Web Development Agency excels in Custom Website Development, delivering high-performing, user-friendly, and SEO-optimized websites. With 100% positive feedback, clients praise their attention to detail, technical expertise, and effective project management. They achieved a 40% improvement in website load times and a 30% increase in organic traffic, enhancing client satisfaction.
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$5,000+$100 - $149 / hr10 - 49Katy, TX
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See all 10 projectsAlkali is a web development company specializing in custom website development, web design, and website optimization. The reviews reflect overwhelmingly positive feedback, with 100% of reviewers praising their responsiveness and communication. Clients frequently commend Alkali's expertise in WordPress and their ability to deliver projects timely, as evidenced by consistent satisfaction with their agile and reliable service delivery.
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$1,000+$25 - $49 / hr10 - 49Surat, India
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See all 2 projectsKnoxpo is a web development company specializing in Front-End Development and creating sophisticated web applications. The company receives overwhelmingly positive feedback, with 99% of deadlines met and consistent satisfaction in deliverables. Clients commend Knoxpo for their polished work and affordability, highlighting their effectiveness in building reusable web systems.
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$10,000+$50 - $99 / hr2 - 9Berlin, Germany
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See all 1 projectsEmerald Solutions is a web development company specializing in full-stack web development and custom website development services. The reviews highlight their exceptional flexibility, dedication, and timely delivery, with an impressive 100% positive feedback on their quality and responsiveness. Their notable achievements include successfully developing an e-commerce platform and a crowdfunding platform that raised over €3.9 million.
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$10,000+$50 - $99 / hr10 - 49
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See all 1 projectsCodementorX is a company specializing in providing freelance developers for web development projects, with a focus on supplemental WordPress expertise and SEO integration. They have received positive feedback for their ability to quickly provide technically proficient and collaborative developers, though some clients noted a recent increase in the time taken to assign new candidates. Overall, 100% of reviewers expressed satisfaction with their deliverables and solutions.
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UndisclosedUndisclosed10 - 49Buzin, Croatia
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See all 1 projectsGlobaldizajn is a web development company specializing in full-stack web development, including front-end and back-end development, as well as custom website development and SEO optimization. With 100% positive feedback, clients highlight their creativity, technical expertise, and effective project management, resulting in significant improvements in website performance, user engagement, and organic traffic growth.
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Undisclosed$100 - $149 / hr10 - 49Englewood Cliffs, NJ
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See all 1 projectsSearch Marketing Group is an SEO and web design agency that excels in providing customized marketing solutions tailored to client needs. They are highly regarded for their willingness to experiment and adapt strategies for optimal results, with a focus on delivering quality leads. Reviewers consistently commend their transparency and adaptability, contributing to an overall positive perception of their services.
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$5,000+$50 - $99 / hr10 - 49
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See all 1 projectsWe AppIt is a web development company known for its expertise in Website Development and Custom Website Development. Reviews commend their efficiency and commitment, with 100% positive feedback highlighting their rapid project delivery and dedication. Clients consistently praise their passion and integrity, making them a preferred choice for web solutions.
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$5,000+$25 - $49 / hr10 - 49Saginaw, MI
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See all 2 projectsInstant Solutions Lab is a web development company specializing in full-stack web development and custom website development. They have delivered on 100% of client expectations, demonstrating expertise in both front-end and back-end development. Clients frequently praise their capabilities, with 100% of reviewers noting their strong project management and technical proficiency in web application development.
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$1,000+$50 - $99 / hr50 - 249Värnamo, Sweden
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See all 5 projectsVeritaz is a company specializing in Custom Website Development and Web Programming. Their reviews reflect a collaborative project management style and strong professionalism, with 100% of feedback being positive. Clients praise their expertise in delivering secured and artistically styled websites, although some suggest they could expand their network.
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$5,000+$100 - $149 / hr10 - 49São Paulo, Brazil
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See all 2 projectsBolt Brasil is a web design and online development company specializing in modernizing established brands. They excel in front-end development, creating visually appealing and consistent designs. With 100% positive feedback highlighting their creativity and professionalism, they have successfully increased client visibility and conversion rates. Their team is noted for combining youthful innovation with professional expertise.
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$1,000+$25 - $49 / hr50 - 249Secunderabad, India
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See all 1 projectsMS Web Professional Design Pvt.Ltd. is a web and mobile app development company specializing in creative design and efficient project management. Reviews highlight their strong performance, with 100% of feedback being positive, noting their innovative designs and excellent support. Clients appreciate their proactive management and the ability to deliver projects before deadlines.
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$1,000+< $25 / hr2 - 9मुंबई, India
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See all 1 projectsOne Sec Media is a digital agency specializing in website creation and social media management. The company is praised for its impressive coordination and effective project management. The reviews reflect a 100% positive sentiment, highlighting that clients had a good experience overall with no areas for improvement noted.
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UndisclosedUndisclosed2 - 9Kissimmee, FL
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See all 1 projectsSystron Micronix is a web development company specializing in comprehensive website development, web programming, and secure hosting services. Their high-performance websites have been recognized for improved load times by 35%–50%, increased uptime to 99.5%–99.9%, and enhanced mobile responsiveness. With a strong emphasis on technical expertise and reliability, 100% of reviewers praise their responsive project management and commitment to performance.
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$10,000+$25 - $49 / hr10 - 49Chennai, India
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See all 5 projectsIndra Crypto Capital is a web development company specializing in custom website development with expertise in front-end and back-end development. The overwhelmingly positive feedback highlights their professionalism and efficiency, with 100% of reviewers praising their project ownership and problem-solving capabilities, particularly in handling complex technical issues swiftly.
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$5,000+$50 - $99 / hr10 - 49Kyiv, Ukraine
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See all 2 projectsBack2Back Team is a web development company specializing in full-stack web development, custom website development, and web application development. According to their reviews, they have a 100% positive feedback rate, consistently delivering projects on time and exceeding expectations with their flexible and responsive approach. Reviewers especially praise their ability to manage complex projects and maintain a positive attitude throughout.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 8 projectsIngenious Minds Lab is a mobile application and web development company recognized for delivering high-quality and efficient solutions across various platforms. The reviews highlight their punctuality, professionalism, and strong communication skills, with 85% of clients appreciating their timely delivery and responsiveness. While most feedback is positive, some clients noted areas for improvement in scope clarification and design details.
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$10,000+$100 - $149 / hr50 - 249Helsinki, Finland
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See all 2 projectsWunderdog is a software development company specializing in providing experienced developers for interim roles and project-specific needs. Their services have been positively reviewed by clients, with 100% of reviewers expressing satisfaction with their ability to seamlessly integrate into existing teams and provide effective solutions. Clients highlight Wunderdog's ability to deliver the right talent at the right time, facilitating the successful continuation and acceleration of projects.
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$10,000+$100 - $149 / hr2 - 9
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See all 1 projectsRed8 Interactive is a Web Development company specializing in technical design and development, particularly within the WordPress platform. Reviews highlight their proficiency in Front-End Development and solution-oriented processes, with 100% of reviewers noting their responsiveness and ability to enhance design functionality. Most feedback is positive, praising their collaboration and development expertise.
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$1,000+$25 - $49 / hr10 - 49Thane, India
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See all 3 projectsAtulsia Technologies Private Limited is a web development company that excels in custom website and SaaS product development. Feedback highlights their professional, transparent, and technically proficient approach, with 100% of reviewers noting timely delivery and excellent project management. Clients appreciate their trustworthy and responsive communication, contributing to successful project outcomes.
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$25,000+$150 - $199 / hr50 - 249West Palm Beach, FL
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See all 1 projectsPrimacy is a web development company specializing in services such as mobile application development. Based on reviews, 100% of respondents commend their skilled team and impressive ability to tackle complex tasks, highlighting their effective project management and strong research and development skills. No areas for improvement were noted by reviewers.
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$5,000+$100 - $149 / hr10 - 49Wilmington, NC
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See all 2 projectsBlueTone Media Web Design is a web design and development company known for its personalized customer service and responsiveness. With 100% positive feedback, clients appreciate their ability to deliver projects efficiently and their willingness to accommodate requests promptly. Reviewers highlight the importance of providing detailed project specifications to ensure successful outcomes, as BlueTone Media executes exactly what is requested.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 1 projectsKrupa Info Services is a versatile development company offering expertise in PHP, .NET, Magento, and WordPress, as well as hybrid mobile app development. Reviewers consistently highlight the high quality of deliverables and strong communication, with 100% positive feedback. Clients commend their skilled developers and effective project management.
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$1,000+$50 - $99 / hr2 - 9
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See all 2 projectsQuilytics is a data analytics company specializing in Google Analytics audits, GA4 build-outs, and Google Data Studio dashboards. The company consistently receives positive feedback for its professional approach and effective communication, with clients highlighting their patience and positive attitude. A notable 100% of the feedback emphasizes their excellent work and seamless integration into client workflows.
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$1,000+$25 - $49 / hr2 - 9Rajkot, India
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See all 2 projectsYogi Infoway is a web development company specializing in custom design and development solutions. Their reviews highlight a strong commitment to delivering projects on time and within budget while maintaining collaborative communication throughout. With 100% positive feedback, clients commend their accurate estimations and efficient project management.
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$5,000+< $25 / hr2 - 9Kragujevac, Serbia
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See all 3 projectsWieQuee is a web development company specializing in Web Application Development, with expertise in technologies such as Laravel and Vue. They receive positive feedback for their communication, flexibility, and dedication to timely project completion. With reviewers noting their effective project management and impactful results, over 80% of the feedback highlights their impressive performance and customer-centric approach.
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$10,000+$25 - $49 / hr10 - 49Sahibzada Ajit Singh Nagar, India
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See all 6 projectsOmninos Solutions is a web development company offering services such as website development, web hosting, and SEO. Their reviews highlight professionalism, timely delivery, and client-focused service, with 100% of reviewers praising the quality and impact of their work on business growth. Some feedback suggests enhancing their SEO services for greater effectiveness.
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$1,000+< $25 / hr10 - 49Gandhinagar, India
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See all 3 projectsAsambhav Solutions is a web development company known for its expertise in Web Application Development and Custom Website Development. Their projects are consistently delivered on time and within budget, with 100% of clients highlighting strong communication and impressive technical skills.
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$25,000+$100 - $149 / hr10 - 49Montréal, Canada
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See all 1 projectsCreative Techinnov Software Solutions Inc. is a software development company specializing in creating scalable Learning Management Systems (LMS) with advanced analytics and multilingual support. The company receives overwhelmingly positive feedback, with clients praising their deep technical expertise, responsiveness, and ability to customize solutions, leading to successful project outcomes and enhanced user experiences.
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$1,000+$100 - $149 / hr2 - 9Somerton, Australia
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See all 2 projectsPMGS Digital is a web development company specializing in Custom Website Development and SEO services, with a reputation for honesty and promptness. The feedback from clients is overwhelmingly positive, with 100% of reviewers highlighting improvements in website traffic and rankings. Additionally, clients appreciate the company's effective communication and knowledge sharing throughout their projects.
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$1,000+< $25 / hr10 - 49
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See all 1 projectsIV Infotech (https://ivinfotech.com/) is a technology-driven company specializing in custom software solutions that drive business growth and digital transformation. We engineer scalable mobile
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$5,000+$50 - $99 / hr2 - 9
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See all 1 projectsSnugFort is a web development company specializing in creating custom website solutions, including e-commerce platforms, SEO, and mobile-friendly designs. Their services have significantly increased client sales and visitor engagement, with 100% of reviews highlighting their creativity, efficient project management, and excellent communication. Reviewers particularly appreciate their innovative suggestions, such as implementing live chat features.
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Undisclosed$25 - $49 / hr2 - 9Poznań, Poland
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See all 5 projectsNocadis is a web development company specializing in customized web solutions, offering services such as Web Design, Web Development, and Web Application Development. Their reviews reflect a 100% positive sentiment, highlighting their professionalism, responsiveness, and ability to understand client needs. Notably, 80% of reviewers commend their project management and communication skills, resulting in effective collaboration and on-time delivery.
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$10,000+$25 - $49 / hr10 - 49
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See all 2 projectsVector is a technology consulting company specializing in digital transformation, software development, and integration services. With a strong emphasis on cultural alignment and effective communication, Vector consistently delivers high-quality solutions on time and integrates seamlessly with client teams. Approximately 100% of the feedback is positive, highlighting their impressive values, skilled team, and structured project management.
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$25,000+$25 - $49 / hr50 - 249Warszawa, Poland
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See all 3 projectsdevPulse is a web development company specializing in custom website development and web design. The company has received positive feedback, with 90% of reviews highlighting their personal attention to detail and willingness to go the extra mile. However, 10% of the feedback suggests there could be improvements in implementing written observations promptly.
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$5,000+$25 - $49 / hr1,000 - 9,999Bengaluru, India
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See all 2 projectsSeventh Dev is a web development company specializing in innovative and user-friendly website development solutions. With a 100% positive feedback rate, reviewers consistently praise their collaborative nature and effective project management. Their services are highly regarded for delivering amazing results, emphasizing strategic planning and timely execution.
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$1,000+$100 - $149 / hr2 - 9Chapel Hill, NC
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See all 1 projectsCC Studio, LLC is a mobile app development company known for its expertise, integrity, and creativity. Reviews consistently highlight timely delivery and budget adherence, with 100% of reviewers praising the company's effective communication and cost efficiency. Notable achievements include launching innovative apps swiftly on the App Store, although there's a suggestion for enhancing their online hiring process.
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$10,000+$50 - $99 / hr2 - 9
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See all 6 projects475 Cumulus is a web development company specializing in full-stack web development and custom website development, adept in both front-end and back-end solutions. With a focus on Python and React, they have been praised for their strong work ethic, affordability, and ability to manage projects effectively. Their impressive architecture solutions are highlighted by 100% positive feedback, with clients noting their responsiveness and quality deliverables.
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$1,000+$50 - $99 / hrFreelancer
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See all 1 projectsODIZAJN is a digital marketing and web development company that excels in creating professional and engaging websites while ensuring compliance with GDPR standards. The reviews highlight their extraordinary pace and structured project management, with 100% positive feedback on their creativity and productivity at a competitive cost. One minor area for improvement is the founder’s proficiency in French.
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$1,000+$25 - $49 / hr10 - 49Lucknow, India
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See all 2 projectsNextupgrad Web Solutions is a web development company specializing in custom website development and web application development. Their reviews highlight a commitment to quality, with 100% of clients praising their thorough problem-solving approach and effective communication. Despite some project delays due to complex coding, clients appreciate their dedication to delivering lasting solutions without temporary fixes.
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$5,000+$25 - $49 / hr10 - 49Las Vegas, NV
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See all 10 projectsVirtueNetz is a web development company specializing in services such as website development, web design, and digital marketing. An analysis of the reviews indicates that 100% of clients express satisfaction with the outcomes, commending their flexibility, professionality, and timely delivery. Notably, 80% of reviews highlight their effective project management and communication skills.
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$10,000+$25 - $49 / hr10 - 49Singapore, Singapore
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See all 1 projectsSleekDigital is a versatile software development company specializing in ERP, CRM, and project management systems available on web and mobile platforms. Clients appreciate their reasonable pricing and proactive approach, with 100% of reviewers highlighting their effort to understand business needs. While project timelines may slightly extend, they maintain strong project management practices, providing regular updates.
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$1,000+$25 - $49 / hr2 - 9Dubai, United Arab Emirates
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See all 12 projectsChacra Software Solutions is a full-stack web development company specializing in custom website development, web design, and web application development. Reviewers consistently praise their professionalism, creativity, and ability to meet tight deadlines, with 100% of feedback being positive. Clients frequently highlight their effective communication and project management skills, making them a reliable choice for complex web programming projects.
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$5,000+Undisclosed2 - 9Cardiff, Wales
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See all 8 projectscodeBeam, a web development company specializing in custom website development and full-stack web development, consistently delivers high-quality projects on time and within budget. With 100% positive feedback, clients commend their project management, responsiveness, and commitment to understanding client needs. Approximately 33% of reviewers highlight their impressive ability to align with customer values and foster a genuine partnership.
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Undisclosed$50 - $99 / hr10 - 49
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See all 1 projectsDEVELOP L.L.C is a custom software development company, specializing in building automated solutions like chatbots, websites, and mobile applications. The company receives highly positive feedback, with 100% of the review highlighting their flexibility, effective project management, and ability to deliver value within budget constraints. Clients commend DEVELOP L.L.C for their adaptability in meeting project needs and timelines.
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$25,000+$25 - $49 / hr50 - 249
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See all 8 projectsServalit is a web development company specializing in both backend and frontend development, as highlighted by their successful creation of a .NET CMS-based web application. 100% of the feedback is positive, emphasizing their responsive communication, seamless integration into client processes, and proactive problem-solving. Clients appreciate their expertise and value for cost, making them a reliable choice for web programming projects.
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$25,000+$50 - $99 / hr10 - 49Vilnius, Lithuania
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See all 4 projectsSOLUTIONLAB PRODUCTION, UAB is a web development company specializing in custom website development and full-stack web development. With 100% positive feedback, clients commend their effective project management, timely communication, and professional advice. Their expertise in implementing updates and features using technologies like Umbraco has led to increased site traffic and client satisfaction.
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$5,000+$100 - $149 / hr2 - 9Stansted, England
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See all 3 projectsBrown Owl Creative is a web development company specializing in custom website development and web design. The reviews highlight their expertise in full-stack web development, particularly on the Wix platform, with 100% positive feedback emphasizing their deep knowledge, effective communication, and ability to meet project goals efficiently. Clients appreciate their responsiveness and the quality of work delivered.
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List of the Top 15 JavaScript Development Companies
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$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$75,000+$100 - $149 / hr50 - 249Vancouver, Canada
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
90% Web Development50% JavaScript10% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development60% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
39.1/40.019.8/20 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
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% 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 -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.5/40.019.6/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% 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 -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.8/40.019.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Web Development40% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.8/40.017/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Kolkata, India
Ability to deliver
36.7/40.019.4/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% Other -
$1,000+< $25 / hr250 - 999Boston, 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 - 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 -
$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 Development33% JavaScript90% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.4/40.016.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Web Development45% JavaScript40% 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 -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38.4/40.018.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
28% Web Development15% JavaScript72% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.5/40.018.4/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249Chelsea, Australia
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 / hr50 - 249New York, NY
Ability to deliver
37.8/40.018/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$1,000+< $25 / hr1,000 - 9,999London, England
Ability to deliver
36.5/40.019.2/20 Reviews9.3/10 Clients & Experience8/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.2/40.016.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$25,000+$100 - $149 / hr50 - 249Cypress, CA
Ability to deliver
36.2/40.018.2/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
100% Web Development40% JavaScript
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.