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 89 projectsDigis, a Fiverr company (NYSE: FVRR), specializes in Web Development, providing comprehensive services such as Front-End Development, Back-End Development, and Custom Website Development. Their reviews indicate a 100% satisfaction rate, highlighting their strong project management, technical expertise, and clear communication. Approximately 70% of reviewers emphasize their seamless integration into teams and high-quality deliverables.
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$5,000+$25 - $49 / hr2 - 9Warszawa, Poland
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Biokod Lab is an application development company. They are headquartered in Warszawa, Poland and have small team. They offer Mobile App Development and Web Development.
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$25,000+$100 - $149 / hr2 - 9
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Loftymote is an application development firm headquartered in Romania. Their services include Mobile App Development and Web Development.
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$5,000+$50 - $99 / hr2 - 9hillsborough, NJ
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Huma IT, a small software development company, is located in hillsborough, New Jersey. The team focuses on Custom Software Development and UX/UI Design.
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$5,000+$50 - $99 / hr2 - 9Kraków, Poland
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Sumato Consulting is a software development company. Their small team is located in Kraków, Poland. Their team offers Custom Software Development and Web Development.
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$1,000+$25 - $49 / hr2 - 9Gurugram, India
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Headquartered in Gurugram, India, Simplex Solutions is a custom software development company. The team provides Custom Software Development and Web Development.
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$5,000+Undisclosed2 - 9
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User experience design company Dinámico Inc is headquartered in Panamá, Panama and Panamá, Panama. The team offers UX/UI Design and Mobile App Development.
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$1,000+$100 - $149 / hr2 - 9
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StoryArc, an AI firm, was founded in 2017. They offers Artificial Intelligence and BI & big data consulting & SI.
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$1,000+$50 - $99 / hr2 - 9
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Swift Consulting, LLC is a web design agency. Their team is based in Phoenix, Arizona. The firm provides Web Design and IT strategy consulting.
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$1,000+$25 - $49 / hr2 - 9Lalitpur, Nepal
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Based in Lalitpur, Nepal and Nepal, BR Codex is an user experience company. Their services include UX/UI Design and Web Design.
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$5,000+$25 - $49 / hr2 - 9
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Established in 2016, Devian Labs is a software development firm. The team specializes in Custom Software Development and UX/UI Design and is based in Monterrey, Mexico.
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$10,000+$150 - $199 / hr2 - 9Troy, MI
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Digital Brain is a Troy, Michigan-based custom software development company. The team focuses on Custom Software Development and Artificial Intelligence.
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$50,000+$100 - $149 / hr2 - 9Parker, CO
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Software development firm Adept Software, LLC was established in 2019. The small team offers Custom Software Development and Enterprise App Modernization.
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$1,000+< $25 / hr2 - 9Delhi, India
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Login 2 World is a custom software development firm. The team specializes in Custom Software Development and Web Development and is based in Delhi, India.
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$1,000+< $25 / hr2 - 9አዲስ አበባ, Ethiopia
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SafeNet Softwares, a custom software development firm, offer Custom Software Development and Mobile App Development. They were established in 2018.
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$5,000+$50 - $99 / hr2 - 9Sydney, Australia
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E-commerce development firm Aheadable Marketing was established in 2018. The firm focuses on E-Commerce Development and Search Engine Optimization, and is small.
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$1,000+$25 - $49 / hr2 - 9p, VA
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Leader Web is a small web design company located in p, Virginia. Their services include Web Design and Web Development.
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$1,000+$25 - $49 / hr2 - 9
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Cat WebMaster is an UX agency in Amsterdam, Netherlands. They focus on UX/UI Design and Content Marketing.
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$10,000+$50 - $99 / hr2 - 9Johor Bahru, Malaysia
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Asoftpage, an ERP consulting and SI company, is headquartered in Johor Bahru, Malaysia. They specialize in ERP consulting and SI and Search Engine Optimization and were established in 2020.
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$1,000+Undisclosed2 - 9Cyberjaya, Malaysia
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Small user experience design agency PYORR Creative Studio, is based in Cyberjaya, Malaysia. The team specializes in UX/UI Design and Graphic Design.
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$1,000+< $25 / hr2 - 9Arequipa, Peru
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KhipuCode is a software development company founded in 2019. The team specializes in Custom Software Development and Enterprise App Modernization and is located in Arequipa, Peru.
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$1,000+$25 - $49 / hr2 - 9Kraków, Poland
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Software development company Projets is located in Kraków, Poland. They provide Custom Software Development and E-Commerce Development and were launched in 2015.
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$1,000+$25 - $49 / hr2 - 9
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StaticStorm is a big data analytics company. In Alexandria, Egypt, the agency was founded in 2017. Their team provides BI & big data consulting & SI and cloud consulting & SI.
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$5,000+$25 - $49 / hr2 - 9Lviv, Ukraine
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Founded in 2020, D-WAVE (DigitalWave) is a small mobile application development firm. Their services include Mobile App Development and Application Testing.
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$5,000+$100 - $149 / hr2 - 9Ingling, Austria
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Inglinger is an Ingling, Austria-based web design company. Their services include Web Design and Web Development.
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$5,000+$25 - $49 / hr2 - 9Lahore, Pakistan
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SEO company CLV Technologies was founded in 2019. In Lahore, Pakistan, the team offers Search Engine Optimization and Graphic Design.
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$1,000+$25 - $49 / hr2 - 9Ilorin, Nigeria
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Magnital Digital Agency, a branding agency, was launched in 2020. The team offers Branding and Digital Strategy and is located in Ilorin, Nigeria.
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$1,000+$25 - $49 / hr2 - 9Aurangabad, India
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Custom software development firm Breakpoint Info Solution is located in Aurangabad, India and Dubai, United Arab Emirates. Their services include Custom Software Development and Web Development.
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UndisclosedUndisclosed2 - 9Khanna, India
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Tekgo is a website development company. The team provides Web Development and Web Design, and the firm is located in Khanna, India.
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$1,000+< $25 / hr2 - 9Himatnagar, India
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Web design agency Squareroot technology was founded in 2017. The firm specializes in Web Design and Graphic Design, and is small.
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$1,000+$100 - $149 / hr2 - 9Oviedo, FL
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American Resolve Mobile is a mobile application development firm. The company is in Oviedo, Florida. Their team provides Mobile App Development and UX/UI Design.
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$5,000+$100 - $149 / hr2 - 9Auckland, New Zealand
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PHPLab NZ is a custom software development firm. In Auckland, New Zealand, their team offers Custom Software Development and Web Development.
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$1,000+< $25 / hr2 - 9Jessore, Bangladesh
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Founded in 2020, Red Bolt IT, a small web design company, is located in Jessore, Bangladesh. Their team offers Web Design and Graphic Design.
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Undisclosed< $25 / hr2 - 9Kyiv, Ukraine
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Custom software development firm Sunstone Soft was launched in 2021. The team focuses on Custom Software Development and Web Development and is headquartered in Kyiv, Ukraine.
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$5,000+$50 - $99 / hr2 - 9Kaunas, Lithuania
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MRE Labs is a small custom software development firm in Kaunas, Lithuania. The team specializes in Custom Software Development and Web Development.
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$1,000+$25 - $49 / hr2 - 9
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Small custom software development company Product Inn, is in Lahore, Pakistan and Abu Dhabi, United Arab Emirates. The team specializes in Custom Software Development and Web Development.
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$10,000+$150 - $199 / hr2 - 9St Kilda, Australia
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DNGN, a small website development company, is headquartered in St Kilda, Australia. The team specializes in Web Development and Search Engine Optimization.
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$1,000+$25 - $49 / hr2 - 9Wrocław, Poland
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InoxieSoft is a custom software development company in Wrocław, Poland. The team offers Custom Software Development and Web Development.
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$1,000+$50 - $99 / hr2 - 9
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Founded in 2022, Digital Affinity, a small SEO agency, is headquartered in. Their services include Search Engine Optimization and Web Design.
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$1,000+$25 - $49 / hr2 - 9Abuja, Nigeria
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Digital Czar Limited, a web design agency, is in Abuja, Nigeria. They offer Web Design and UX/UI Design.
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$1,000+$25 - $49 / hr2 - 9Kolkata, India
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Founded in 2022, Dragonfly Labs is a small website development firm headquartered in Kolkata, India and Kolkata, India. Their team specializes in Web Development and Mobile App Development.
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$10,000+$50 - $99 / hr2 - 9Cluj-Napoca, Romania
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Accelerated Growth Labs, a small custom software development firm, is in Cluj-Napoca, Romania. The team specializes in Custom Software Development and Web Development.
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$1,000+Undisclosed2 - 9
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Teem Shah , a SEO agency, specializes in Search Engine Optimization and Email Marketing. The company is based in Sacramento, California.
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$1,000+$50 - $99 / hr2 - 9
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Headquartered in București, Romania, Ligero Web is a software development firm. The team provides Custom Software Development and Web Development.
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$1,000+< $25 / hr2 - 9
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Infinite Cloud Hub (ICH), a CRM consulting and SI company, was launched in 2018. The small team offers CRM consulting and SI and IT staff augmentation.
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$5,000+$100 - $149 / hr2 - 9
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Custom software development company LNX Inc. Was founded in 2017. The company provides Custom Software Development and IT managed services.
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$1,000+< $25 / hr2 - 9
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PRODIGITAL TECH is a big data company. They are in Bucharest, Romania and have small team of experts. Their services include BI & big data consulting & SI and Web Development.
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$5,000+$100 - $149 / hr2 - 9Eglinton, Australia
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IT managed services company Storia Technologies was established in 2021. The firm provides IT managed services and Web Development.
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$5,000+$50 - $99 / hr2 - 9Istanbul, Türkiye
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Radibu is a custom software development firm in Istanbul, Türkiye. They specialize in Custom Software Development and Web Development.
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$1,000+$50 - $99 / hr2 - 9Jena, Germany
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Dashwerk, a cloud consulting & SI company, specialize in cloud consulting & SI and Web Development. They were founded in 2022.
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$5,000+$25 - $49 / hr2 - 9Dubai, United Arab Emirates
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Unseen Works is a software development company. Their small team of employees is in NSW, Australia and Dubai, United Arab Emirates. Their team offers Custom Software Development and AR/VR
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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
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
38.5/40.019.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% 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 -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.7/40.019.4/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
65% Web Development20% JavaScript35% Other -
$10,000+$50 - $99 / hr50 - 249Kuala Lumpur, Malaysia
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.5/40.017.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
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 -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.6/40.018.6/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% 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 -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.7/40.018.8/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$1,000+< $25 / hr250 - 999Walpole, MA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.3/40.016.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.7/40.019.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
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36.9/40.017.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% 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 -
$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 -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
37.8/40.018/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.3/40.018.2/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38/40.018.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$10,000+$50 - $99 / hr10 - 49Montevideo, Uruguay
Ability to deliver
38.3/40.019.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
40% Web Development50% JavaScript60% 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+$25 - $49 / hr50 - 249Rickmansworth, England
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development20% JavaScript40% 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.