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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$5,000+$50 - $99 / hr10 - 49Santa Fe de la Vera Cruz, Argentina
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See all 2 projectsFlowing Code is a software development company known for its expertise in Java development and DevOps. Clients appreciate their ability to adapt swiftly to project requirements and integrate seamlessly into existing workflows. Feedback is overwhelmingly positive, highlighting their commitment to quality, with one client noting a 95% reduction in incident reports. While communication is generally good, there's room for continuous improvement.
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$1,000+$50 - $99 / hr2 - 9Kuala Lumpur, Malaysia
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See all 3 projectsEcompile, a Web Development company specializing in Custom Website Development and Web Design, consistently delivers high-quality projects with a flexible and responsive communication style. Clients appreciate their problem-solving skills and willingness to make unlimited revisions, resulting in a strong positive feedback rate, though some suggest a more visual project timeline could enhance client expectations.
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$50,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 2 projectsNullgravity is a full-stack web development company renowned for its expertise in UI/UX design and admin panel development. Reviews highlight their effective project management and ability to deliver quality MVPs swiftly, with 100% positive feedback emphasizing outstanding service and insightful product development. Their commitment to understanding both user needs and business challenges is consistently praised.
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$5,000+$50 - $99 / hr10 - 49Braga, Portugal
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See all 2 projectsLamplighter is a web development company known for its expertise in Website Development and Web Design. Reviews highlight their perfect and timely delivery, with 100% of feedback praising their quality approach and empathy. Clients appreciate their alignment of company values and good value for cost.
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$1,000+$50 - $99 / hr2 - 9Taichung , Taiwan
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See all 5 projectsiamrobert digital design is a web development company that specializes in creating custom websites tailored to clients' branding and business needs. With 100% positive feedback, clients commend their ability to deliver impressive web designs that are easy to manage and effective for online promotion. The team, noted for their professionalism and clear communication, ensures successful project outcomes without the need for technical expertise from the clients.
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$1,000+$25 - $49 / hrFreelancer
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See all 1 projectswfMonk is a web development company specializing in front-end development and web design. They are praised for their timely delivery and excellent communication, with 100% of reviewers highlighting their adherence to project guidelines and responsiveness. Clients appreciate their cost-effective services and seamless integration of custom designs.
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$5,000+$50 - $99 / hr2 - 9Sofia, Bulgaria
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See all 5 projectsLumicaSoft Ltd. | The Sitefinity Experts is a web development company specializing in custom website development, Sitefinity expertise, and full-stack web development. They consistently deliver high-quality work, with 100% of reviewers praising their technical expertise, timely communication, and project management. Clients commend their ability to meet deadlines and value their culture fit and professionalism.
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$5,000+$50 - $99 / hr2 - 9
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See all 2 projectsFlowdudes is a web development company specializing in Webflow Development, emphasizing animations and interactions. They consistently deliver projects on time, with high responsiveness to client needs. With 100% positive feedback, clients commend their animation skills and effective communication, noting the high quality and sleek design of their web development projects.
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$5,000+< $25 / hr10 - 49Ahmedabad, India
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See all 8 projectsTechEniac is a web development company specializing in website development, web application development, and custom website development. The company is highly praised for its attention to detail, responsiveness, and professionalism, with 100% of reviews highlighting their effective project management and customer satisfaction. Clients consistently report improved online presence and business metrics, such as increased traffic and conversion rates.
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$1,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 9 projectsBytegrow Technologies is a web development company specializing in custom website development and complex web solutions. Across the reviews, 100% of clients praised their responsiveness, professionalism, and technical expertise, particularly in web application development and CRM solutions. Many highlighted their proficiency in both front-end and back-end development, noting improvements in business efficiency and user experience.
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$5,000+$25 - $49 / hr10 - 49
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See all 5 projectsAiosphere is a web development company specializing in custom website development, full-stack web development, and web application development. With a 100% satisfaction rate across reviews, clients commend their effective project management, adaptability, and high-quality deliverables, especially in web design and online development. Their commitment to responsive communication and cultural alignment is frequently highlighted as a key strength.
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$10,000+$50 - $99 / hr10 - 49Berlin, Germany
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See all 1 projectsDigitalKwarts OÜ is a web development company that specializes in comprehensive website redesigns and custom website development. Their clients praise their personalized approach and effective communication, with 100% of reviewers noting significant improvements in web traffic and business performance. The collaboration experience is described as exceptional, with no negative feedback provided.
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$10,000+$25 - $49 / hr50 - 249Larnaca, Cyprus
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See all 2 projectsGotoinc is a web development company specializing in custom website development and UX design, particularly for WordPress and Salesforce applications. The reviews highlight their exceptional professionalism, responsiveness, and quality, with a significant increase in website traffic and efficient delivery of high-quality designs. All feedback is overwhelmingly positive, praising their dedication even during challenging circumstances.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 4 projectsvRajan Infotech Private Limited is a mobile and web development company known for developing Android and iOS applications. The reviews reflect a high level of satisfaction, with 100% of clients highlighting their quick responsiveness and effective project management. Their ability to adapt to changes and deliver solutions on time has been praised consistently, with no significant areas for improvement mentioned.
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$5,000+$100 - $149 / hr2 - 9Denver, CO
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See all 3 projectsBowtie.co is a web development company specializing in custom website development and web application development. The reviews highlight their exceptional project management skills and responsiveness to client needs. With 100% positive feedback, clients praise their ability to adapt and deliver comprehensive solutions, such as member portals and permitting systems, utilizing front-end and back-end development.
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$5,000+< $25 / hr50 - 249Ahmedabad, India
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See all 4 projectsCandidRoot Solutions Private Limited is a proficient software development company specializing in Odoo ERP implementation and customization, mobile application development, and CRM solutions. Across four reviews, 100% of clients commend their consistent support, timely delivery, and customer-focused approach. Clients particularly appreciate their professionalism and the ability to meet or exceed project expectations, with many citing their great value for cost.
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$10,000+$50 - $99 / hr50 - 249Wrocław, Poland
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See all 1 projectsMicro Solutions is a software development company specializing in middleware and backend solutions, with expertise in system architecture, DevOps, and quality assurance. The company receives overwhelmingly positive feedback, with 100% of reviewers highlighting their customer-focused mindset and ability to adapt quickly, as demonstrated by their hiring of skilled personnel to meet project demands efficiently.
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$5,000+$50 - $99 / hr2 - 9
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See all 1 projectsSIMBYONE is a web development company that specializes in creating user-friendly platforms and custom website development solutions. Their work on a trademark registration website resulted in over 400 clients within the first three weeks, showcasing their expertise in web application development. Feedback highlights their innovative problem-solving and timely delivery, with 100% of reviewers noting their client-centric approach.
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$1,000+$25 - $49 / hr10 - 49Rajshahi, Bangladesh
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See all 1 projectsWPCamel is a web development company specializing in full-stack website development using WordPress. According to reviews, 100% of clients highlight their excellent project management and the quality of their custom website development. The company is noted for delivering projects on time and without any issues, making it highly recommended by previous satisfied clients.
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$1,000+$50 - $99 / hr2 - 9
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See all 1 projectsYellow Pinne is a web development company specializing in website design and development, including custom website and logo creation. Overwhelmingly positive feedback (100% positive reviews) highlights their seamless project management, creativity, and ability to capture clients' visions. Clients commend their attentiveness and genuine collaboration, emphasizing their professionalism and technical expertise.
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$1,000+< $25 / hr50 - 249Ahmedabad, India
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See all 3 projectsZealousWeb is a web development company known for its expertise in customization, particularly within the WordPress/WooCommerce platform. The company is highly praised for its efficient project delivery and clear communication, with 100% of reviewers highlighting their ability to deliver work promptly and effectively. Their commitment to client satisfaction is evident in their proactive project management and quality deliverables.
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$1,000+< $25 / hr50 - 249Chennai, India
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See all 3 projectsYaali Bizappln Solutions is a web development company specializing in custom solutions, such as customer quotation management systems. Their reviews highlight strong team collaboration, on-time delivery, and effective communication, with 100% positive feedback regarding their professionalism and ability to meet project requirements efficiently.
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$10,000+$100 - $149 / hr2 - 9Amsterdam, Netherlands
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See all 3 projectsNevron is a web development company specializing in custom website development and maintenance services. The firm's reviews highlight its client-friendly approach, with a 100% positive feedback rate regarding timely delivery and proactive responsiveness. Nevron's work in website development and management has led to significant client growth, with 100% of reviewers noting impressive scalability and innovation in their projects.
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$5,000+$25 - $49 / hr10 - 49Bogra, Bangladesh
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See all 8 projectsBoomdevs is a comprehensive web development company excelling in custom website development and full-stack web development services. With 100% positive feedback, clients consistently praise Boomdevs for their project management, clear communication, and ability to deliver scalable, user-friendly websites that enhance online presence and engagement. Their commitment to quality and proactive approach stands out as a key strength.
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$25,000+$25 - $49 / hr2 - 9Bucharest, Romania
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See all 1 projectsWisedigital.tech is a mobile app development company recognized for its expertise in creating scalable and robust applications. The reviews highlight their commitment to transparency, with 100% of reviewers emphasizing trust and reliability in delivering high-quality software solutions. Notably, they excel in project management, maintaining low incident rates and responding proactively to client needs.
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$1,000+$25 - $49 / hr250 - 999Dubai, United Arab Emirates
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See all 4 projectsIPIX Technologies is a web development company specializing in Website Development, Web Design, and Web Programming services. With a focus on creating user-friendly and visually appealing websites, they have garnered positive feedback from clients, with over 85% of reviews praising their responsiveness and efficiency. Clients appreciate their punctuality and project management, though some suggested improvements in communication and cost efficiency.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsSynthesis Technology is a web development company specializing in creating websites using platforms like Office 365 and SharePoint Intranet. Reviews reflect a 100% positive sentiment, highlighting their dedication, accessibility, and exceptional customer service. Clients commend their attention to detail and ability to exceed expectations, with no noted areas for improvement.
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$25,000+$150 - $199 / hr2 - 9
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See all 1 projectsDigital Bird is a web development company specializing in front-end and back-end services, including full-stack web development and web design. Clients commend their exceptional communication skills and high-quality work, with 100% positive feedback highlighting their expertise and ability to deliver flexible, well-designed web platforms that evolve with business needs.
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$1,000+< $25 / hr10 - 49
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See all 3 projectsJS Tigers - Software Development is a web development company proficient in back-end development and web application development. They have received overwhelmingly positive feedback, with 100% of reviewers praising their responsiveness and ability to understand client needs. Clients appreciate their efficient project management and ability to automate processes, which helps businesses remain competitive.
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$1,000+< $25 / hr50 - 249Indore, India
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See all 2 projectsLean Artists is a mobile app development company that specializes in creating Android and iOS applications. Their overall feedback is highly positive, with customers praising their ability to deliver quality products promptly and efficiently. Approximately 100% of reviewers express satisfaction with their communication and project management skills, noting their use of WhatsApp and email for consistent updates.
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$1,000+$25 - $49 / hrFreelancer
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See all 3 projectsSadik Shaikh is a web development company specializing in custom website development, evidenced by their hands-on approach and efficient project management. With 100% positive feedback, clients commend their ability to deliver projects ahead of schedule and their consistent problem-solving support.
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$5,000+$25 - $49 / hr50 - 249Noida, India
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See all 7 projectsRemoteState specializes in Website Development, Web Design, and Web Programming, offering tailored solutions for supply chain management. Reviews highlight their strong domain knowledge and adherence to project timelines, reflecting a commitment to delivering high-quality web-based and app development services. Clients appreciate their agile project management and the alignment of company values, with no significant areas for improvement mentioned.
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$1,000+< $25 / hr50 - 249New York, NY
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See all 5 projectsVareweb is a web development company excelling in web design and full-stack web development. Reviews highlight their strong project management, timely delivery, and excellent communication, with 100% of clients praising their ability to deliver neat and elegant websites within budget. Their collaborative approach and expertise in custom website development ensure client satisfaction without any noted areas for improvement.
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$5,000+$100 - $149 / hr2 - 9Toronto, Canada
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See all 6 projectsWebsiteBrush is a web development company specializing in custom website development, web design, and full-stack web development. Across their reviews, 100% of clients expressed satisfaction with their responsiveness, project management, and ability to meet or exceed expectations. Clients particularly appreciated their problem-solving skills and cost-effectiveness, with no notable areas for improvement mentioned.
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$25,000+$50 - $99 / hr10 - 49Stoke-on-Trent, England
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See all 3 projectsAware Digital is a web development company specializing in custom website development, ongoing support, and maintenance. With positive feedback from 100% of reviewers, clients commend their proactive approach, solid project management, and expertise in front-end and back-end development. While some delays in ticket resolution were noted, clients appreciate their excellent communication and commitment to driving website success.
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$5,000+$25 - $49 / hr10 - 49Melbourne, Australia
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See all 2 projectsUpscalix is a web development company specializing in Website Development and Web Application Development. Feedback is consistently positive, highlighting their effective project management and timely delivery, with 100% of reviewers noting satisfaction with project outcomes. Clients report significant improvements, such as a 50% increase in website interactivity and a 70% rise in new job bookings.
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$5,000+$25 - $49 / hr10 - 49Santiago de Querétaro, Mexico
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See all 5 projectsBrounie is a web development company specializing in custom website development, web design, and web application development. With 100% positive feedback from reviewers, they are praised for their proactive communication, timely delivery, and innovative solutions. Clients appreciate their ability to adapt to unique project needs and the quality of their deliverables, resulting in increased website traffic and improved user experience.
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$50,000+$50 - $99 / hr250 - 999
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See all 2 projectsFacilité Informatique Canada inc. is a web development company specializing in full-stack web development and web application development. Their collaboration with the National Bank of Canada highlights their capability to manage complex projects, although there is room for improvement in software engineering practices. Approximately 85% of the feedback is positive, emphasizing their cost-effectiveness and project management skills.
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$50,000+$200 - $300 / hr10 - 49New York, NY
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See all 1 projectsBlenderbox is a web development company known for its exceptional project management and dedication from senior leadership. They excel in creating user-friendly, mobile-first website designs, as evidenced by positive user feedback and increased web traffic. Approximately 100% of the feedback highlights their professionalism, attention to detail, and strong leadership as standout qualities.
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$1,000+< $25 / hr2 - 9
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See all 12 projectsWebperts is a web development company specializing in custom website development, web design, and online development. Across their reviews, 100% of clients express satisfaction, highlighting their excellent communication, responsiveness, and ability to deliver complex projects such as customizable online systems and optimized websites. Clients appreciate their understanding of project needs and timely completion without requests for extensions.
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$10,000+$50 - $99 / hr10 - 49Singapore
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See all 4 projectsPengYi Labs is a UI/UX design company known for its exceptional responsiveness and communication skills, praised by 100% of reviewers. Specializing in creating UI mockups, wireframes, and app designs, they consistently deliver high-quality work on time, with no significant areas for improvement noted. Their adaptability and ability to integrate into client teams have contributed to successful project outcomes across various industries.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 1 projectsExpoders Solutions is a software development company specializing in project management systems. They have received overwhelmingly positive feedback, with 100% of clients praising their cost-effectiveness and reliability, and their system achieving over 99% reliability. Reviewers consistently highlight their efficiency, attention to detail, and strong communication skills, with a notable emphasis on affordability and trustworthiness.
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$5,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 2 projectsSWAAM Tech is a web development company known for its comprehensive Website Development and Web Programming services. Clients appreciate their timely deliverables, with 100% of reviewers highlighting their effective communication and ability to understand business needs. The company's expertise ensures projects are well-managed and align with client objectives.
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$1,000+< $25 / hr10 - 49
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See all 2 projectsDeerada is a web development company known for delivering high-quality, custom website development services. Their clientele appreciates their unique web design skills and efficient project management, with 100% of reviewers highlighting their timeliness and quality work. Deerada specializes in creating corporate sites that are both visually appealing and user-friendly, ensuring comprehensive client satisfaction.
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$50,000+$50 - $99 / hr10 - 49Cluj-Napoca, Romania
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See all 1 projectsDood Software is a web development company specializing in full-stack web development and web application development. With a team composed mainly of experienced senior developers, they are praised for their professionalism, innovative technical solutions, and effective project management. Over 90% of the feedback highlights their ability to meet deadlines and deliver high-quality results, making them a reliable partner for large-scale projects.
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$10,000+$50 - $99 / hr2 - 9Cluj-Napoca, Romania
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See all 2 projectsThe Big Byte is a software development company known for its expertise in handling complex projects and delivering high-quality software solutions. Clients appreciate their ability to quickly understand requirements and meet project objectives with 100% satisfaction in quality, budget, and timeline. Approximately 50% of reviewers highlight their excellent project management skills, though some suggest a balance is needed to prevent overemphasis.
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$1,000+$25 - $49 / hr10 - 49Ghaziabad, India
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See all 2 projectsTechtonic Enterprises Pvt. Ltd. is a web development company specializing in full-stack web development, custom website development, and web application development. Their reviews highlight a 100% positive feedback rate, with clients praising their technical expertise, client-centric approach, and proactive solutions, resulting in enhanced online presence and user engagement. Notably, 40% of reviewers emphasize their impressive project management and timely delivery.
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$25,000+$50 - $99 / hr10 - 49Kraków, Poland
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See all 22 projectsUltimate Systems is a dynamic web development company specializing in custom website development, web application development, and full-stack web development services. Their reviews reflect a consistently high level of client satisfaction, with 100% positive feedback highlighting their exemplary project management, technical expertise, and ability to deliver on time. Clients frequently commend their effective communication and flexibility in adapting to project needs.
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$25,000+$25 - $49 / hr50 - 249
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See all 12 projectsQubit Labs is a web development company specializing in back-end and front-end development, serving as an extension of internal teams. The company is praised for its agility, swift communication, and ability to quickly provide quality candidates, with 100% of reviewers noting these strengths. While a growing company, minor legal and financial processing delays were noted but have been resolved.
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$5,000+$25 - $49 / hr10 - 49Vinnytsia, Ukraine
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See all 3 projectsEvenmore is a web development company specializing in front-end development, with expertise in transitioning frameworks and managing complex projects in sectors like crypto and finance. The reviews highlight their top-quality deliverables and quick problem-solving skills. Impressively, 100% of the feedback reflects satisfaction with no noted areas for improvement.
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List of the Top 15 JavaScript Development Companies
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$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
50% Web Development75% JavaScript50% 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 -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$10,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.4/40.019.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development60% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
39.1/40.019.8/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.9/40.018/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.5/40.019.6/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$10,000+$50 - $99 / hr50 - 249Kuala Lumpur, Malaysia
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.8/40.019.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Web Development40% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.8/40.017/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Kolkata, India
Ability to deliver
36.7/40.019.4/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% Other -
$1,000+< $25 / hr250 - 999Boston, MA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38.8/40.019/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% 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 -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
28% Web Development15% JavaScript72% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.5/40.018.4/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249Chelsea, Australia
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$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 - 249Long Beach, 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.