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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$10,000+$100 - $149 / hr10 - 49Jerusalem, Israel
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WITH LOVE INTERNET is a social media marketing firm. In Jerusalem, Israel, the company was founded in 2014. Their team focuses on Social Media Marketing and Web Development.
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$10,000+$50 - $99 / hr10 - 49Cape Town, South Africa
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Small e-commerce development company Dado, is in Cape Town, South Africa. The team offers E-Commerce Development and Web Development.
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$10,000+$50 - $99 / hr10 - 49T'bilisi, Georgia
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Milk & Cartoons is a web development company headquartered in T'bilisi, Georgia. They provide Web Development and Mobile App Development and were founded in 2009.
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Undisclosed$100 - $149 / hr10 - 49Sofia, Bulgaria
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Topvine Consulting OOD is a web development company. The team is in Sofia, Bulgaria, and their services include Web Development and Custom Software Development.
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$1,000+< $25 / hr10 - 49
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CLIXSTA is a small website development firm launched in 2016. Their team focuses on Web Development and Web Design.
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$1,000+$25 - $49 / hr10 - 49Miami, FL
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Located in Miami, Florida, Onyxer Digital is a small web design company. The team focuses on Web Design and Web Development.
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$1,000+$25 - $49 / hr10 - 49
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Website development firm FLUGGI GROUP is based in Namangan, Uzbekistan and Moskva, Russia. They focus on Web Development and UX/UI Design.
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$10,000+$25 - $49 / hr10 - 49L'viv, Ukraine
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Scelex is a custom software development firm. The L'viv, Ukraine-based company was launched in 2018. Their team provides Custom Software Development and Web Development.
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$1,000+$100 - $149 / hr10 - 49
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WEB ALTERNATIVE is a PPC company. Their small team is headquartered in Clearwater, Florida. Their services include Pay Per Click and Web Development.
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Undisclosed< $25 / hrFreelancerMumbai, India
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Founded in 2023, Coder29 is a small Mumbai, India-based website development company. Their team specializes in Web Development and Mobile App Development.
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$1,000+$25 - $49 / hr2 - 9Pereira, Colombia
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Proyectos y Soluciones T.I is a small custom software development company launched in 2020. Their services include Custom Software Development and Mobile App Development.
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$10,000+$50 - $99 / hr2 - 9
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SimpleIT is a custom software development firm located in Sarajevo, Bosnia and Herzegovina. Founded in 2022, the team provides Custom Software Development and Web Development.
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$1,000+$50 - $99 / hr2 - 9
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Santa Marta AB is an Ekerö, Sweden-based ERP consulting and SI company. They provide ERP consulting and SI and Custom Software Development and were established in 2021.
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$10,000+< $25 / hr10 - 49
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In Pune, India, Codeastu Technologies is a website development company. The team provides Web Development and Mobile App Development.
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$10,000+$50 - $99 / hr2 - 9Edinburgh, Scotland
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Launched in 2011, Katana is a web development company. The small team specializes in Web Development and Mobile App Development.
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$1,000+$25 - $49 / hr10 - 49
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Closed is a website development company. Established in 2018, the team offers Web Development and Custom Software Development. The company is headquartered in Istanbul, Türkiye.
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$1,000+$25 - $49 / hr10 - 49
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TechCossacks is a website development company. They are based in Kyiv, Ukraine, and their services include Web Development and E-Commerce Development.
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$1,000+$25 - $49 / hr10 - 49Altamonte Springs, FL
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Established in 2009, The Designs Empire is a web design agency. The team offers Web Design and Web Development and is headquartered in Altamonte Springs, Florida.
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$5,000+$50 - $99 / hr2 - 9
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See all 1 projectsOutlyrs, LLC - Out of Business was a web development company specializing in web design and development projects. Review feedback highlights their exceptional customer service and quick project turnaround, with 100% of reviewers emphasizing these strengths. Their work was notably featured in a large DMA newspaper for its ease of use and effective mobile browsing design.
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Undisclosed$100 - $149 / hr2 - 9Knoxville, TN
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Hornsby Brand Design LLC is a branding agency founded in 2003. The firm focuses on Branding and Web Design.
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$5,000+$50 - $99 / hr10 - 49Koblenz, Germany
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Winning Solutions is a Koblenz, Germany-based web development firm. They specialize in Web Development and Web Design and were founded in 2015.
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UndisclosedUndisclosed10 - 49Berlin, Germany
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Jonas und der Wolf GmbH is a software development firm. The Berlin, Germany-based team specializes in Custom Software Development and Web Development.
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$1,000+$25 - $49 / hr10 - 49
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CYBORG is an IT staff augmentation company. Established in 2024, the agency is located in Bikaner, India. Their services include IT staff augmentation and Custom Software Development.
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UndisclosedUndisclosed2 - 9Saint-Herblain, France
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AquilApp is a web development company. They are located in Saint-Herblain, France and have small team. They specialize in Web Development and Mobile App Development.
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$1,000+$25 - $49 / hr2 - 9
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Located in Vitoria, Brazil, MW7 Design is a web design company. They offer Web Design and Web Development.
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$1,000+$25 - $49 / hr50 - 249Hanoi, Vietnam
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Rikai Mind Jsc, a website development firm, is located in Hanoi, Vietnam. Founded in 2017, the team provides Web Development and Mobile App Development.
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$1,000+< $25 / hr10 - 49Noida, India
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See all 1 projectsEastSons' Technologies offers services in Website Development and Web Design. Reviews highlight their excellent project management, attention to detail, and ability to create responsive and user-friendly websites. Clients commend them for their effective communication, flexibility, and commitment to aligning with the clients' vision, resulting in enhanced user engagement and satisfaction.
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UndisclosedUndisclosed10 - 49Beaverton, OR
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Website development firm Grey Ghost Studio, Inc was launched in 2003. The agency offers Web Development and Content Marketing, and is small.
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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsFitToWeb specializes in Website Development, focusing on creating effective landing pages with a strong emphasis on Web Design and Web Programming. Their clients highlight the company's impressive cost-value ratio, fast delivery, and professional communication. FitToWeb's services reportedly lead to increased traffic, improved user conversion rates, and enhanced SEO positioning, demonstrating their capability in Online Development.
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$1,000+$25 - $49 / hr2 - 9Sliven, Bulgaria
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WEB iMPRESSION is a web development company. They are located in Sliven, Bulgaria and have small team of experts. Their services include Web Development and API Development.
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$10,000+$25 - $49 / hr10 - 49Ahmedabad, India
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Broadsy Technolgoies Private Limited is a web development firm. They were founded in 2020, and their services include Web Development and Mobile App Development.
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$5,000+$25 - $49 / hr10 - 49
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Mobile application development company BuildOut Solution was launched in 2018. In Lahore, Pakistan, the team focuses on Mobile App Development and Web Development.
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$1,000+$25 - $49 / hr10 - 49Chennai, India
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In Chennai, India, AT Digitals is a website development company. The team offers Web Development and E-Commerce Development.
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$1,000+$25 - $49 / hr2 - 9
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Digital98 Software Development Company, a custom software development company, is located in Istanbul, Türkiye. The team specializes in Custom Software Development and Mobile App Development.
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$5,000+$100 - $149 / hr50 - 249Singapore, Singapore
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Established in 2010, Mediaplus Digital Pte Ltd is a SEO company. The midsize team focuses on Search Engine Optimization and Pay Per Click.
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$25,000+$50 - $99 / hr250 - 999Staten Island, NY
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Headquartered in Staten Island, New York, Nitka Technologies is a midsize software development company. Their services include Custom Software Development and Web Development.
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$1,000+< $25 / hr250 - 999Singapore, Singapore
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Vysystems Pte Ltd is a SEO agency. The team focuses on Search Engine Optimization and Web Design and is in Singapore, Singapore and Chennai, India.
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$1,000+$25 - $49 / hr2 - 9Sarstedt, Germany
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See all 6 projectsRoute4Design is a digital transformation agency based in Germany, specializing in web design, web development, mobile app development, SEO, and AI-driven solutions. At Route4Design, we help
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$1,000+$100 - $149 / hr10 - 49
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Swiftwave Digital, a web development company, was launched in 2020. The team provides Web Development and Social Media Marketing and is located in Rawalpindi, Pakistan and Rawalpindi, Pakistan.
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$5,000+$200 - $300 / hr2 - 9Oakland, CA
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See all 2 projectsWellington Studio specializes in Website Development, Web Design, and branding services. Clients have consistently praised their professionalism, responsiveness, and ability to deliver projects on time and within budget. Notable themes include their alignment with client values, personal touch, and proactive approach in offering valuable options that enhance the final product.
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$25,000+$50 - $99 / hr50 - 249Kyiv, Ukraine
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See all 1 projectsKyiv Strategy Consulting LLC is a proud member of BDO AG Wirtschaftsprüfungsgesellschaft, a public limited company under German law. We are part of the global BDO International Limited
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$5,000+< $25 / hr50 - 249Tragad, India
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Qonsult Business Solutions is a custom software development company. Their team is located in Tragad, India and Tragad, India. The firm provides Custom Software Development and cloud consulting &
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$1,000+$50 - $99 / hr2 - 9Birmingham, England
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VioGraphs Media is a website development company. Located in Birmingham, England, the team provides Web Development and Web Design.
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$1,000+$50 - $99 / hr2 - 9
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Diego Lujan Studio is a small El Paso, Texas-based graphic design agency. The team offers Graphic Design and Web Development.
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$100,000+$150 - $199 / hr10 - 49Toronto, Canada
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See all 2 projectsBuild With Assembly offers cloud assessments, migrations, and modernization services, specializing in Azure implementations. The reviews highlight their strong technical expertise, professional project management, and alignment with client values. Clients appreciate their agility, customer-centric approach, and ability to deliver bespoke solutions, establishing themselves as trusted partners within their clients' ecosystems.
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$10,000+$150 - $199 / hr10 - 49Rocky River, OH
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Web design agency The Refinery provides Web Design and Web Development. They were founded in 2005.
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$10,000+$100 - $149 / hr10 - 49Zürich, Switzerland
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Web development firm Dream Production AG provides Web Development and E-Commerce Development. They are headquartered in Zürich, Switzerland and Timișoara, Romania.
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$5,000+$50 - $99 / hr2 - 9Long Beach, CA
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OS Ignite, Inc. Is an app development company. The firm is in Long Beach, California and Costa Mesa, California. Their services include Mobile App Development and Custom Software Development.
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$25,000+$50 - $99 / hr10 - 49Beograd, Serbia
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See all 1 projectsDanubio specializes in Website Development, including Web Design and Web Programming. Feedback consistently highlights their effective project management, timely delivery, and strong communication skills. Clients appreciate their reasonable pricing, value for cost, and commitment to not billing for their own errors.
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Undisclosed$25 - $49 / hr10 - 49Ahmedabad, India
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Kasana Media is a web development firm. The small Ahmedabad, India-based team focuses on Web Development and Branding. The firm was founded in 2014.
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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
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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 -
$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 -
$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+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
38.2/40.018.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$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
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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 -
$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.