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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$10,000+$50 - $99 / hr10 - 49Cluj-Napoca, Romania
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See all 7 projectsLuminos Software is a specialized Web Development company that excels in delivering high-quality web and mobile solutions, particularly in UX/UI design and Web Application Development. The firm has received overwhelmingly positive feedback, with clients praising its excellent communication, responsiveness, and ability to deliver complex projects on time. Approximately 100% of reviewers highlight Luminos Software's professionalism and flexibility, ensuring successful project outcomes and client satisfaction.
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$5,000+$25 - $49 / hr2 - 9Dhaka, Bangladesh
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See all 1 projectsWevloper is a web development company specializing in custom website development and web design. The reviews highlight their effective project management and timely delivery, with 100% of clients noting their attentiveness to client needs and impressive UI design approach. However, some suggest that reducing UI design time could enhance their efficiency.
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$5,000+$25 - $49 / hr10 - 49Surat, India
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See all 4 projectsCODEEDOC is a web development company specializing in Front-End Development and Full-Stack Web Development, with a focus on blockchain integration and responsive web applications. Their reviews highlight a 100% success rate in project delivery and seamless communication, with 100% of clients expressing satisfaction with their responsiveness, professionalism, and alignment with client values.
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$5,000+< $25 / hr10 - 49Ahmedabad, India
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See all 5 projects3i webexperts pvt ltd is a web development company specializing in custom website development, web application development, and CRM systems. With an emphasis on delivering high-quality work, 100% of the feedback is positive, praising their excellent project management, efficiency, and responsiveness. They successfully execute tasks such as SEO optimization, custom app development, and website performance enhancement, consistently meeting client expectations.
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$5,000+$50 - $99 / hr2 - 9Sandy, UT
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See all 2 projectsNeddaxs LLC is a web development company specializing in custom website development and web application development. They have received overwhelmingly positive feedback, with clients praising their technical expertise and responsive project management. Notably, 100% of reviewers commend their ability to adapt to new technologies and their impressive work ethic.
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$1,000+< $25 / hr10 - 49L'viv, Ukraine
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See all 8 projectsKeplercode is a full-stack web development company specializing in website development, custom software, and web application development. Across reviews, 100% of clients highlight their impressive technical proficiency and exceptional responsiveness. Reviewers consistently commend their ability to deliver projects on time, meet client needs, and provide excellent customer service, with no significant areas for improvement identified.
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$1,000+Undisclosed10 - 49Tallinn, Estonia
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See all 2 projectsCatapult Labs is a software development company specializing in logistics, supply chain platforms, and energy-related software solutions. Reviews highlight their strong project management skills and ability to deliver high-quality results on time, with 100% of reviewers noting their impressive development capabilities. While clients appreciate their agility and commitment, some suggest exploring more innovative ideas collaboratively.
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$100,000+$150 - $199 / hr10 - 49
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See all 3 projectsSaeloun is a full-stack web development company highly praised for its expertise in web application development and custom website development. Reviewers highlight their ability to deliver high-quality features on time, with 100% of feedback emphasizing their technical competence and impactful contributions equivalent to top-tier engineering leadership.
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$5,000+$25 - $49 / hr2 - 9Vila Verde, Portugal
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See all 3 projects4DEVCODING is a web application development company specializing in custom solutions like web apps and ERP-type software with ongoing maintenance. Their reviews highlight a 100% positive feedback rate, emphasizing their impact on streamlining processes, flexibility, and cost-effectiveness, although a more focused implementation approach could enhance their efficiency further.
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$1,000+$100 - $149 / hr2 - 9Rancho Cucamonga, CA
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See all 4 projectsCallstack Labs is a web development company known for its exceptional Full-Stack Web Development and Web Programming services. With 100% positive feedback, clients consistently praise their technical expertise, strategic vision, and ability to deliver high-quality, custom website development on time. Their exceptional project management and wide-ranging capabilities make them a highly recommended choice for Web Dev projects.
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$5,000+$25 - $49 / hr10 - 49
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See all 4 projectsTimebase is a web development company specializing in custom website development and API integrations. They are highly praised for their efficiency, transparency, and proactive approach, with 100% of reviews noting successful project execution and excellent communication. Clients appreciate their commitment to long-term partnerships and consistent on-time delivery within budget.
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UndisclosedUndisclosed10 - 49
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See all 6 projectsEmerge Digital, a company specializing in Web Development and Web Design, consistently receives positive feedback for its timely delivery, commitment to client needs, and exceptional project management. Approximately 100% of reviewers commend their punctuality and flexibility, with many highlighting their ability to translate client visions into successful outcomes, particularly in Website Development and SEO enhancements.
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$1,000+< $25 / hr50 - 249
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See all 1 projectsObservance Solutions Pvt Ltd is a technology solutions company specializing in development and manual testing services. The company consistently meets deadlines and budget requirements, demonstrating good technical expertise and prompt responsiveness. Positive feedback is unanimous, with 100% of reviewers highlighting their accountability and impressive communication skills.
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$10,000+$100 - $149 / hr2 - 9
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See all 7 projectsUnset is a web development company specializing in creating custom websites and transforming landing pages into full websites. Feedback from clients is overwhelmingly positive, highlighting their ability to deliver quality projects promptly and adapt to client needs, with 100% of reviews mentioning their strong communication and project management skills. Their expertise in UX/UI and design is frequently praised, with clients noting their straightforwardness and responsiveness.
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$1,000+< $25 / hr10 - 49Kathmandu, Nepal
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See all 1 projectsTruemark Technology is a comprehensive digital marketing agency specializing in content creation, content marketing, and SEO optimization. The feedback from their clients is overwhelmingly positive, with multiple reviews praising their dedication, deliverability, and efficient communication. Impressively, 100% of reviewers highlight their ability to meet tight deadlines consistently, making them a reliable partner for digital projects.
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$1,000+Undisclosed2 - 9Sioux Falls, SD
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See all 4 projectsJax Digital is a web development company specializing in custom website development and enhancing online presence. With 100% positive feedback, clients commend their expertise in web and back-end development, effective project management, and excellent customer service. Notably, 67% of reviewers highlight their responsiveness and ability to meet unique design and functionality needs.
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$5,000+$25 - $49 / hr2 - 9Montevideo, Uruguay
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See all 2 projectsMatea Social is a web development company specializing in Web Design and Custom Website Development. They are praised for their creativity, solution-oriented thinking, and strong execution skills. With 100% positive feedback in reviews, clients commend their professionalism, responsiveness, and capacity to capture and implement ideas effectively. Their commitment to social development projects in Uruguay also sets them apart.
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$5,000+$50 - $99 / hr2 - 9München, Germany
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See all 1 projectsStrivals is a web development company specializing in custom website development, offering services such as front-end and back-end development. They have received 100% positive feedback, with clients praising their high-performance website development and seamless communication. Notably, 100% of reviewers highlight their ability to exceed expectations through efficient project delivery and ongoing support.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 5 projectscodExalters Techlabs is a full-stack web development company with a strong emphasis on app and website development. They are praised for delivering projects on time and their impressive attention to detail, with 100% of reviewers highlighting their excellent communication and value for cost. Additionally, clients noted their ability to adapt and expand project scopes effectively.
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Undisclosed$25 - $49 / hr1,000 - 9,999
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See all 1 projectsEtech Technology Solutions specializes in comprehensive digital marketing services, offering expertise in areas such as YouTube channel relaunches and podcast production. Reviews highlight a strong alignment with client values and commendable project management, with an emphasis on timely delivery and client responsiveness. Notably, 100% of the feedback is positive, emphasizing the company's dedication to service.
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$1,000+$25 - $49 / hr2 - 9Odesa, Ukraine
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See all 1 projectsPixelfreight is a web development company that excels in custom website development and SEO optimization, demonstrating expertise in integrating CRM systems and managing content creation. With a 100% positive feedback rate, clients commend their timely delivery, industry knowledge, and effective project management, making them a reliable choice for comprehensive online development needs.
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$1,000+$25 - $49 / hr2 - 9
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See all 3 projectsDot One Technology is a web development company specializing in custom website development and web design services. According to their reviews, they receive approximately 100% positive feedback, with clients praising their meticulous attention to detail, client satisfaction, and effective project management. The company is noted for delivering responsive and user-friendly websites, with enhanced SEO and performance optimization.
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$1,000+$25 - $49 / hr2 - 9Velykyi Kuchuriv, Ukraine
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See all 1 projectskode.software is a web development company specializing in frontend work, particularly in creating landing pages for SaaS products. They have received positive feedback for their design quality, cost-effectiveness, and tidy coding, with 100% of the reviewers highlighting their communication and flexibility. Despite some minor issues with initial information gathering, clients express satisfaction and plan to continue working with them.
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$5,000+< $25 / hr50 - 249Torrance, CA
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See all 4 projectsHangingPanda PVT LTD is a web development company recognized for its expertise in Website Development, with a focus on creating secure and user-friendly digital marketplaces. Feedback is overwhelmingly positive, highlighting the team's strategic thinking, adaptability, and timely delivery, with 100% of reviewers emphasizing their professionalism and innovation in web programming and project execution.
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$5,000+$100 - $149 / hr10 - 49East Greenwich, RI
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See all 3 projectsMythic Digital, LLC is a web development company specializing in Drupal and JavaScript solutions, including API integration and website revamps. Across their reviews, 100% of clients praised their project management skills, highlighting their adherence to deadlines and strong communication. Additionally, 50% of reviewers emphasized their impressive depth of knowledge and high-quality development work.
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$1,000+$50 - $99 / hr10 - 49West Bromwich, England
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See all 1 projectsAl-Junaid Agency is a specialized development company known for creating tailored AI tools. They have received overwhelmingly positive feedback, with 100% of reviewers highlighting their technical expertise and responsive project management. Clients particularly appreciate their ability to bring visions to life with precision, contributing to significant user growth and satisfaction.
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$1,000+$50 - $99 / hr10 - 49Barcelona, Spain
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See all 7 projectsShugert Marketing is a web development company specializing in custom website development and web application development. The company has facilitated the growth of an online ticketing system, contributing to reaching over 100 venues in the US. Review feedback is overwhelmingly positive, highlighting their project management skills and ability to understand and implement client concepts.
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$10,000+$25 - $49 / hr2 - 9Panipat, India
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See all 4 projectsKodetra Technologies Pvt. Ltd. is a versatile technology company specializing in web and app development and branding solutions. Reviews emphasize their professionalism and effective communication, with 100% of clients noting positive experiences. Clients appreciate their ability to integrate ideas and execute projects promptly, although minor feedback suggests potential enhancements in interface design and availability during specific time zones.
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$5,000+< $25 / hr10 - 49Jaipur, India
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See all 2 projectsPixel Point Technology offers comprehensive Website Development and Web Design services. Reviews highlight their ability to consistently deliver complex projects on time and their effective project management characterized by constant communication. Clients appreciate their skill in transforming ideas into functional websites, often noting their impressive programming capabilities and timely execution.
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$10,000+$25 - $49 / hr50 - 249Ho Chi Minh City, Vietnam
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See all 1 projectsYOONG is a technology development company specializing in the design and implementation of B2B healthcare operating platforms. Reviews indicate a strong emphasis on efficiency, with 100% of feedback highlighting significant reductions in service processing and insurance claims time. Clients appreciate YOONG’s clear communication and leadership, though some noted minor delays in team onboarding.
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$1,000+$25 - $49 / hr10 - 49Sahibzada Ajit Singh Nagar, India
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See all 4 projectsAppsTechy Private Limited is a web development company specializing in website maintenance, upgrades, and custom website development. Their reviews reflect a 100% satisfaction rate, highlighting their competence in web programming, timely project delivery, and dedication to customer satisfaction. Clients commend their responsiveness and adaptability, with no significant areas for improvement noted.
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$100,000+$300+ / hr10 - 49Morningside, Australia
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See all 2 projectsMetrix is a digital solutions company specializing in website development and marketing strategies. They received overwhelmingly positive feedback, with clients noting a 400% increase in leads and a 150% rise in sales. Reviewers consistently praised their agile project management and effective communication, with 100% highlighting ease of collaboration and satisfaction with the results.
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$10,000+$25 - $49 / hr10 - 49Kharkiv, Ukraine
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See all 2 projectsCodeTiburon is a custom software development company specializing in web and mobile app solutions, predominantly using technologies like Angular JS and JavaScript. Their clients consistently commend them for their strong project management, technical expertise, and commitment to project deadlines, although 100% of reviewers noted pricing as an area for potential improvement. Overall, CodeTiburon maintains a high level of client satisfaction, demonstrated by long-term collaborations.
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$10,000+$50 - $99 / hr2 - 9
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See all 7 projectsPinro is a web development company specializing in mobile-optimized website development and full-stack web programming. Reviewers consistently praise their technical expertise and dedication, with 100% highlighting their effective project management and close client relationships. Additionally, 100% of reviews mention their agile approach, willingness to work extended hours, and ability to significantly improve client outcomes through enhanced website functionalities.
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$10,000+$25 - $49 / hr10 - 49Noida, India
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See all 3 projectsiByte Infomatics is a web development company excelling in custom website development and full-stack web development services. The company has received overwhelmingly positive feedback, with 100% of reviewers praising their communication skills, responsiveness, and ability to integrate seamlessly with project teams. Their technical expertise in platforms like React, Laravel, and WordPress is frequently highlighted.
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$1,000+< $25 / hr10 - 49Indore, India
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See all 4 projectsZetawiz Technologies is a distinguished web development company specializing in Custom Website Development and Web Design. Reviews highlight their professionalism, timely delivery, and responsiveness, with 100% positive feedback on their website development expertise. Impressively, 50% of reviewers specifically commend their flexibility and deep understanding of both design and technical execution.
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$5,000+$25 - $49 / hr10 - 49
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See all 9 projectsKorsa Agency is a web development company specializing in redesigning and rebuilding eCommerce websites. With a strong focus on communication and timely delivery, they received 100% positive feedback for their comprehensive design, development, and deployment services. Clients particularly appreciate their alignment of company values and effective project management.
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$1,000+$25 - $49 / hr10 - 49London, England
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See all 2 projectsWhite Label Solutions is a web development company that specializes in Website Development and Web Design. Reviewers consistently highlight their ability to meet tight deadlines, with 100% noting timely delivery. Although 100% of reviewers were impressed with their flexibility, some (around 20%) suggested improvements in design quality due to time constraints.
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Undisclosed< $25 / hr10 - 49Kozhikode, India
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See all 5 projectsWiinnova Software Labs is a web development company specializing in front-end and back-end development, particularly for Drupal 8 and Typo3 CMS. Reviewers highlight their exceptional coding quality and effective communication, with 100% positive feedback on deliverables being timely and of great quality. Their ability to integrate seamlessly with clients' processes is frequently praised.
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$5,000+< $25 / hr10 - 49Jaipur, India
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See all 3 projectsYorviTech Solutions Pvt. Ltd. is a web development company specializing in custom website development and web application development. They demonstrate strong project management skills and effective communication, as evidenced by 100% of reviewers highlighting their clear communication and flexibility. Clients commend their ability to exceed targets and deliver detailed work efficiently, with no significant areas for improvement noted.
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$5,000+$25 - $49 / hr2 - 9L'viv, Ukraine
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See all 1 projectsSemalt is an SEO agency that specializes in automating business processes, as highlighted by their work with an international fencing club. Their services have received positive feedback, with clients appreciating the automation of invoicing and scheduling tasks. However, language barriers were noted with some team members, though the project management was generally praised.
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$1,000+$25 - $49 / hr10 - 49Tallinn, Estonia
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See all 2 projectsCycles is a marketing design firm providing diverse assets such as one-pagers, landing pages, and social media content. The feedback is overwhelmingly positive, with 100% of reviewers praising their speed, team quality, and project management. Clients report satisfaction and improved sales, highlighting Cycles' efficiency and impactful design solutions.
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Undisclosed$50 - $99 / hr2 - 9
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See all 1 projectsUbisource is a talent acquisition company renowned for providing nearshore sourcing solutions and aligning candidates with cultural and business needs. They consistently deliver high-quality resources promptly, with 100% of reviews highlighting their dependability and cultural alignment. Clients appreciate their thoroughness and minimal oversight requirements, with no areas identified for improvement.
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$1,000+$50 - $99 / hr2 - 9Poznań, Poland
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See all 2 projectsPatrick.pro is a web development company specializing in Web Design, Website Development, and Custom Website Development. Reviews highlight their excellent communication, timely delivery, and high technical expertise. With 100% of reviewers noting satisfaction with their services, Patrick.pro demonstrates a strong commitment to meeting client needs effectively.
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$1,000+< $25 / hr2 - 9Indore, India
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See all 5 projectsGreenTurban Website && Mobile APP Development is a web development firm specializing in WordPress customization and web design. The company receives positive feedback for its efficient, high-quality service and swift communication, with 100% of reviewers praising their quick response times and project delivery. Notably, 75% of clients highlight their professionalism and ease of communication.
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$25,000+$50 - $99 / hr10 - 49Poznań, Poland
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See all 5 projectsX-ONE is a web development company specializing in custom website development, full-stack web development, and web application development. The reviews highlight their exceptional project management and communication skills, with 100% of clients expressing satisfaction in these areas. Clients also appreciate their ability to deliver complex solutions on time and within budget, making X-ONE a trusted digital partner.
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$1,000+< $25 / hr10 - 49Indore, India
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See all 2 projectsAlphanizes is a creative agency specializing in producing 3D animation and explainer videos. With a focus on timely delivery and creative innovation, 90% of their projects meet deadlines. Clients highlight the agency's creative prowess and effective project management, notably praising Anu's leadership. While timelines occasionally fluctuate, their work results in substantial business benefits, such as increased app installations and lead generation.
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$5,000+$25 - $49 / hr10 - 49Beograd, Serbia
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See all 8 projectsAVS Solutions is a web development company specializing in Web Design and Custom Website Development. Reviews indicate a high level of satisfaction with 100% of clients highlighting their professionalism, timely delivery, and effective communication. Clients consistently praise their ability to meet project objectives and their commitment to exceeding expectations through innovative solutions and strong collaboration.
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$10,000+$25 - $49 / hr10 - 49New Delhi, India
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See all 3 projectsNoisiv Consulting is a full-stack web development firm specializing in custom website development, web programming, and online development. Reviews highlight their technical expertise and innovative solutions, with 95% of deliverables completed on time. Their dedicated and collaborative approach, particularly from their founder, receives praise, though some feedback suggests improving deadline adherence by expanding their team.
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$1,000+$25 - $49 / hr10 - 49Alicante (Alacant), Spain
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See all 2 projectsWebExito is a Web Development company specializing in creating custom websites from scratch, with a focus on Web Design and Web Programming. Reviewers highlight the company's effective communication and understanding of client needs, with 100% positive feedback on their collaborative approach and ability to deliver professional, well-designed websites tailored to business models and sector-specific requirements.
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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
Ability to deliver
36.9/40.017.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.7/40.019/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% 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
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.