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 87 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development firm offering comprehensive solutions in custom website development, full-stack web development, and web application development. With 100% positive feedback, clients commend their seamless integration into teams, high-quality deliverables, and responsiveness. Approximately 80% of reviews highlight their effective project management and communication, emphasizing their reliability and expertise in meeting project milestones.
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$5,000+$100 - $149 / hr2 - 9Monroe, WA
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See all 13 projectsEfinitytech is a web development company specializing in custom website development, web programming, and SEO. With a focus on personalized service and high-quality, robust solutions, Efinitytech has received overwhelmingly positive feedback, with about 90% of reviewers highlighting their excellent customer service and effective communication. Clients commend their ability to tailor projects to specific needs and their dedication to client success.
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$5,000+Undisclosed2 - 9
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See all 4 projectsMetaclass is a full-stack web development company specializing in back-end development, custom web solutions, and web application development. Reviews indicate a strong emphasis on code quality and project management, with approximately 90% of clients praising their technical expertise and innovative problem-solving. Clients appreciate their commitment to delivering cost-effective, customized solutions within budget constraints.
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$10,000+$25 - $49 / hr50 - 249Noida, India
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See all 11 projectsQSS Technosoft Inc is a proficient web development company specializing in custom website development and full-stack web development services. Their reviews reflect a strong emphasis on effective project management, transparent communication, and a result-oriented approach, with approximately 90% of clients highlighting their technical expertise and commitment to meeting timelines. Positive feedback frequently mentions their skilled developers and proactive management.
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$5,000+$100 - $149 / hr2 - 9
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See all 3 projects2 Dogs Media is a web development company specializing in custom website development and SEO optimization. Reviewers highlight the company's thorough audits and effective website recoding, contributing to improved user engagement and SEO performance. With 100% positive feedback, clients appreciate the owner's commitment to client growth and timely project management.
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$1,000+$25 - $49 / hr2 - 9
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See all 17 projectsMomentum Squads is a full-stack web development company that excels in creating custom website development solutions and web applications. With a 100% positive feedback rate across reviews, clients commend their commitment to delivering high-quality online development projects on time and within budget. Notably, 90% of the reviews highlight their exceptional project management and responsiveness to client needs.
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$5,000+$50 - $99 / hr10 - 49London, England
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See all 5 projectsWP Minds is a web development company specializing in comprehensive website solutions, including development, hosting, content management, and security. Reviews highlight their exceptional responsiveness, quick turnarounds, and problem-solving abilities, with 100% of reviewers praising their communication and professionalism. Clients appreciate their tailored approach and ability to exceed expectations, underscoring their reliability in online development services.
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$25,000+$100 - $149 / hr10 - 49
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See all 1 projectsNYC Devshop is a web development company specializing in custom website development and web programming using Ruby on Rails. Reviews highlight their timely and budget-conscious project management, with 85% of feedback praising their engineering and business acumen. However, 15% of reviewers suggest improvements in UI/UX design.
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$5,000+$50 - $99 / hr2 - 9Mission Viejo, CA
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See all 3 projectsCalibec is a web development company specializing in modernizing applications, offering services like online development and web programming. Reviews highlight their effective communication, timely delivery, and the successful enhancement of user engagement, with 100% positive feedback on their project management. Clients appreciate their straightforward approach and the value they provide for the cost.
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$10,000+$25 - $49 / hr10 - 49
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See all 6 projectsDecode House - SEO Agency is a digital marketing firm specializing in SEO, website design and development, content creation, and online advertising strategies. The agency consistently receives positive feedback for its professionalism, with 100% of reviewers highlighting their responsive communication and successful project management. Clients commend their data-driven and client-centric approach, resulting in enhanced brand visibility and increased sales.
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$25,000+$25 - $49 / hr10 - 49
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See all 5 projectsVindiTek is a web development company specializing in custom website development and app creation for both iOS and Android platforms. In their reviews, 100% of clients praised their efficiency and professionalism, noting that their work significantly enhanced business outcomes. Clients appreciated their swift delivery and adaptability, leading to successful project completion.
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$25,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 31 projectsMLSDev is a web development company specializing in custom website development, web application development, and full-stack web development. They consistently receive positive feedback, with clients praising their project management, responsiveness, and ability to integrate innovative ideas. Nearly 100% of reviewers highlight their professionalism and quality of work, emphasizing their commitment to collaboration and client satisfaction.
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$25,000+$100 - $149 / hr2 - 9Hilversum, Netherlands
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See all 6 projectsVolare Software is a full-stack web development company renowned for its expertise in web application development and custom software solutions. Their reviews highlight a 100% positive feedback rate, with clients praising their transparency, exceptional project management, and ability to adapt to complex requirements. Approximately 80% of reviewers commend their collaborative approach and depth of technical knowledge in both front-end and back-end development.
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$1,000+$50 - $99 / hr10 - 49Carbondale, IL
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See all 7 projectsDesignMaze is a web development company lauded for its custom website development and exceptional client service. With 100% positive feedback, clients praise their responsiveness, commitment, and ability to exceed expectations in website creation and maintenance. While areas for improvement include streamlining processes, the overall client satisfaction underscores their value and expertise in web design and online development.
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$5,000+$50 - $99 / hr10 - 49Amsterdam, Netherlands
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See all 11 projectsMiyagami is a web development company specializing in Website Development and Web Design. They have received positive feedback for their ability to deliver projects on time, with clients appreciating their flexibility, quality, and reasonable pricing. Approximately 100% of reviews highlight their customer-centric approach, emphasizing their fast and precise delivery of digital solutions such as websites and digital strategies.
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$25,000+$100 - $149 / hr10 - 49London, England
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See all 11 projectsBlott Studio is a versatile web development and design company excelling in web development, custom website development, and web application development. The company consistently delivers high-quality results, with positive client feedback highlighting their project management, flexibility, and communication skills. Across various projects, 100% of reviewers commend their exceptional execution, while 80% emphasize their cultural fit and ability to meet deadlines.
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$10,000+$50 - $99 / hr10 - 49Dover, DE
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See all 5 projectsSuper Cluster is a web development company specializing in Website Development, Web Design, and Custom Website Development. With a 100% positive feedback rate, clients commend their exceptional flexibility, timely delivery, and ability to anticipate needs. Approximately 50% of reviews highlight their outstanding communication and alignment with client values, showcasing their commitment to building trust and delivering high-quality, innovative solutions.
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$10,000+$50 - $99 / hr50 - 249Dnipro, Ukraine
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See all 4 projectsGlobal Cloud Team offers a range of services including Website Development, Web Design, and Web Programming. Reviews highlight their ability to deliver robust web applications and optimized websites, with clients praising their project management, cultural fit, and dedication to project success. However, some feedback suggests a desire for improved clarity on technical components.
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$5,000+$150 - $199 / hr10 - 49Montgomery, AL
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See all 6 projectsCopperwing Design is a comprehensive branding and marketing agency known for its creativity and strategic approach in rebranding, logo design, and marketing collateral development. In their reviews, 100% of clients praise their professionalism, effective communication, and commitment to delivering high-quality solutions. The company is highly regarded for creating cohesive brand identities and meeting client expectations consistently.
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$1,000+$50 - $99 / hr50 - 249
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See all 15 projectsACAP is a company specializing in Web Development and Web Application Development services. Reviews reveal a mixed reception: while 60% of clients report seamless project management and reliable communication, 40% express concerns about quality control and offshore development inconsistencies. Despite these challenges, ACAP has been commended for their reasonable pricing and flexibility in client interactions, emphasizing their commitment to client satisfaction.
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$10,000+$50 - $99 / hr250 - 999
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See all 6 projectsEsteemed is a web development company specializing in front-end and back-end development, with a focus on Drupal-based projects. The reviews reveal a consistent theme of satisfaction, with around 100% of clients expressing positive feedback regarding the quality of work and communication. Esteemed is praised for its responsive communication, high-quality development, and ability to integrate seamlessly with clients’ teams, making it a reliable partner for custom website development projects.
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$5,000+$25 - $49 / hr10 - 49Cluj-Napoca, Romania
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See all 1 projectsMediatic is a software development company specializing in PHP and Symfony technologies, with a strong focus on eCommerce platforms. The reviews highlight their exceptional technical expertise and excellent project management skills, with 100% positive feedback regarding their ability to deliver high-quality code and effective communication. Clients particularly commend their management team's synergy and understanding of project needs.
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$5,000+$25 - $49 / hr10 - 49Rawalpindi, Pakistan
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See all 19 projectsBinary Marvels Pvt Ltd. is a proficient web development company specializing in custom website development, full-stack web development, and web application development. Reviewers praise their professionalism, timely project completion, and quality work, with 100% of feedback highlighting their effective communication and dedication. Additionally, 75% of reviewers commend their ability to understand client needs quickly and deliver impressive results.
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$10,000+$100 - $149 / hr2 - 9Norwich, England
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See all 5 projectsBigfork Ltd is a web development company offering services such as website design, hosting, support, and SEO. The overall feedback from clients is overwhelmingly positive, with 100% of reviewers highlighting their responsiveness, technical expertise, and commitment to client satisfaction. Many noted their successful delivery of custom website development projects and their proactive project management.
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$10,000+$150 - $199 / hr10 - 49Peachtree Corners, GA
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See all 4 projectsWebTheory is a web development company specializing in custom website development, particularly with WordPress. Reviews are overwhelmingly positive, highlighting their strong project management and commitment to quality, with 100% of reviewers noting their responsiveness and dedication to project outcomes. A minor suggestion was improved organization of shared assets.
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$25,000+$50 - $99 / hr2 - 9Chișinău, Moldova
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See all 2 projectsSoflex is a web development company specializing in creating custom website solutions, including full-stack web development and web application development. The overall feedback is overwhelmingly positive, with 100% of the reviews highlighting their timely delivery, transparent communication, and client-focused approach. Clients appreciate their flexibility and dedication to meeting project requirements successfully.
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$5,000+$25 - $49 / hr10 - 49Kharkiv, Ukraine
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See all 10 projectsDeluxcode is a web development company that excels in custom website development, web application development, and web design. Reviews highlight their expertise in full-stack web development, with a 100% satisfaction rate among clients. Deluxcode is praised for their flexibility, quick response times, and ability to deliver projects exceeding client expectations with innovative solutions.
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$1,000+$25 - $49 / hr250 - 999Gurugram, India
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See all 10 projectsMetaDesign Solutions is a web development company specializing in web application development and custom website development services. Their clients appreciate the thorough understanding of project visions and effective project management, with 100% of reviewers noting the impressive around-the-clock support and seamless communication, resulting in commercially successful outcomes.
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$1,000+$50 - $99 / hr2 - 9Sofia, Bulgaria
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See all 2 projectsUnax is a versatile software development company specializing in cloud-based solutions and custom web development, particularly for legal and employee engagement sectors. Their clients commend their exceptional project management, timely delivery, and technical expertise, with all reviewers highlighting their quick understanding and responsiveness. Overall, 100% of the feedback is positive, emphasizing Unax's ability to meet specific business needs effectively.
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$1,000+Undisclosed50 - 249
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See all 7 projectsAFX Web Studios is a web development company specializing in Website Development, Web Design, and WordPress site creation. They have consistently demonstrated technical proficiency and understanding of business needs, with 100% of reviewers praising their user-friendly designs and timely delivery. AFX Web Studios is recognized for its unique feature integration, particularly for new businesses.
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$5,000+$25 - $49 / hr10 - 49Monterrey, Mexico
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See all 1 projectsHMS Software Solutions is a software development company specializing in automating and streamlining business processes. Their clients commend them for their innovative solutions and effective project management, leading to increased client and employee satisfaction. Impressively, 100% of reviewers noted improved efficiency and error reduction, with no areas for improvement mentioned.
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$10,000+$150 - $199 / hr10 - 49
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See all 6 projectsNXT Digital Solutions Ltd is a web development company specializing in website development, web application development, and custom website development. The company consistently delivers high-quality work on time and within budget, with a 100% positive feedback rate. Notable strengths include their project management, communication skills, and innovative web design, with 67% of reviews highlighting their exceptional teamwork and attention to detail.
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$10,000+$25 - $49 / hr50 - 249
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See all 5 projectsEvistep Enterprise offers comprehensive services in Website Development, Web Design, game development, and app development. Reviews highlight their attention to detail, quick responsiveness, and the creation of visually appealing websites and designs. Clients report satisfaction with the effective workflow and successful project outcomes.
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$10,000+$50 - $99 / hr50 - 249
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See all 3 projectsOINO specializes in web and software development, offering services such as Web Application Development and Web Programming. Review feedback is largely positive, highlighting their project management skills and flexibility, with 100% of reviews praising their ability to meet deadlines and adapt to client needs. A minor area for improvement involves initial communication and wireframe development.
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$10,000+$50 - $99 / hr10 - 49Kyiv, Ukraine
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See all 9 projectsEltrino is a web development company known for its creative and diligent approach to custom website development, including web design and front-end development. With 100% positive feedback, clients praise their professionalism, creativity, and effective communication, resulting in a modern and comprehensive web presence.
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$5,000+$50 - $99 / hr2 - 9Nova Mokošica, Croatia
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See all 15 projectsInity Agency is a web development company renowned for its comprehensive services, including Website Development, Web Design, and Custom Website Development. Clients consistently praise their communication skills and project management, with 100% of reviewers noting timely delivery and responsiveness to feedback. Their ability to integrate client ideas into innovative solutions is frequently highlighted, demonstrating a strong commitment to client satisfaction and successful project outcomes.
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$1,000+$25 - $49 / hr10 - 49Los Angeles, CA
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See all 6 projectsDigital Octane is a full-stack web development company specializing in Website Development, Web Design, and Web Programming. Across their reviews, 100% of clients praise their efficient project management, timeliness, and high-quality output, with particular emphasis on their ability to deliver pixel-perfect and user-friendly web solutions. Many clients (at least 60%) commend their cost-effectiveness and clear communication.
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$5,000+$100 - $149 / hr2 - 9
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See all 2 projectsVilni is a strategic marketing agency specializing in brand awareness, social media management, and content creation. Reviewers highlight their exceptional communication, creative talent, and strategic thinking. With 100% positive feedback, Vilni is commended for delivering measurable results such as increased site traffic and trial sign-ups, making them a highly recommended partner.
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$1,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 13 projectsWeb Peppers is a web development company specializing in Custom Website Development, Front-End Development, and Back-End Development, particularly using Drupal. With a strong track record of responsiveness and professionalism, they have received overwhelmingly positive feedback from clients. Approximately 100% of reviewers commend their flexibility, communication, and ability to meet deadlines, indicating their reliability and effectiveness in delivering high-quality web solutions.
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$5,000+$25 - $49 / hr10 - 49L'viv, Ukraine
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See all 3 projectsOwleks is a web development company specializing in website development and web design, with a focus on creating platforms that facilitate anonymous communication. Their work received overwhelmingly positive feedback, with 100% of reviewers expressing satisfaction with their technical and graphical implementation. Clients praised their transparent communication and effective project management, highlighting the seamless collaboration and exceeding expectations in deliverables.
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$5,000+< $25 / hr50 - 249Noida, India
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See all 12 projectsB2C InfoSolutions is a web development company specializing in full-stack web development and mobile applications. However, their reviews indicate mixed feedback. While some clients praised their communication and project understanding, others highlighted project delays, poor quality management, and significant communication issues. Negative feedback constitutes approximately 50% of reviews, often citing incomplete deliverables and poor project management.
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$10,000+$50 - $99 / hr50 - 249Bengaluru, India
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See all 22 projectsNextbrain is a web development company that specializes in Web Application Development, Custom Website Development, and Full-Stack Web Development. The overall feedback from reviews is predominantly positive, with clients praising their responsive project management and ability to deliver high-quality work on time. Approximately 80% of reviewers highlighted their effective communication and understanding of client needs.
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$5,000+$25 - $49 / hr50 - 249Pune, India
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See all 9 projectsPrometteur Solutions PVT LTD is a web development company proficient in online development, including web programming and custom website development. With 100% positive feedback across three reviews, clients commend their responsiveness, timely delivery, and customer-oriented approach. However, some clients noted a lack of creative input, requiring precise guidance for desired outcomes.
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$1,000+$100 - $149 / hr2 - 9Painesville, OH
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See all 2 projectsSoftware Prophets is a versatile development company specializing in custom application and mobile app development. Reviews reveal a 100% satisfaction rate, with clients praising their technical expertise, dedication, and responsiveness. Eric, the primary contact, is noted for his exceptional knowledge and ability to translate complex ideas into successful projects, making Software Prophets a reliable partner for diverse technological needs.
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$1,000+$25 - $49 / hr2 - 9
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See all 2 projectspgiovas is a professional web development company specializing in Website Development and Web Design, with a focus on custom solutions tailored to client needs. Reviewers consistently praise their empathetic approach and excellent communication, highlighting their attentive and professional service throughout the project lifecycle. With 100% positive feedback, clients appreciate their ability to adapt and provide personalized solutions.
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$10,000+$50 - $99 / hr50 - 249Kyiv, Ukraine
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See all 6 projectsLead IT is a versatile software development company specializing in cross-platform mobile applications and backend solutions. With 100% positive feedback, clients commend their exceptional communication, timely delivery, and innovative problem-solving skills. Approximately 66% of reviewers highlight their initiative in enhancing project outcomes, underlining their commitment to client success and seamless integration of feedback.
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$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 9 projectsBlue House Technologies is a web development company specializing in custom website and web application development services. With a strong emphasis on flexibility, project management, and quick turnaround times, they are praised for their ability to exceed client expectations and deliver effective online solutions. Approximately 100% of the reviews highlight their professionalism and efficiency, with mention of their impressive adaptability and problem-solving skills.
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$5,000+< $25 / hr50 - 249Islamabad, Pakistan
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See all 3 projectsNESL-IT (SMC PVT) LTD is a web development company specializing in custom website development, with expertise in React, Node.js, and AWS deployment. Reviewers highlight their adaptability and efficient project management, with 100% positive feedback on their ability to meet project needs and deliver on time, supporting ongoing collaboration.
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Undisclosed$25 - $49 / hr10 - 49Montevideo, Uruguay
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See all 13 projectsSeta Workshop is a web development company specializing in web application development, custom website development, and UX/UI improvements. They consistently deliver high-quality projects on time, with 100% of reviewers praising their professionalism, project management, and cultural fit. Their expertise in front-end development and backend solutions is complemented by their exceptional attention to detail and client-focused approach.
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$5,000+$25 - $49 / hr10 - 49Chennai, India
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See all 11 projectsApproLabs Private Limited is a proficient web development company specializing in custom website development and full-stack web development services. Their clients consistently express satisfaction with their technical expertise and timely project delivery, with over 90% of feedback highlighting their strong project management capabilities and commitment to quality. Notably, clients appreciate ApproLabs' proactive approach in identifying solutions and their thorough understanding of requirements.
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$5,000+$50 - $99 / hr10 - 49Tarnowskie Góry, Poland
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See all 4 projectsNEATsoft is a web development company specializing in Website Development and Web Design. The firm is praised for its efficiency, cost-effectiveness, and sector knowledge, with a 100% positive feedback rate highlighting their quick implementation and effective communication. Clients value their ability to deliver impressive results and enhance business processes.
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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 Development70% JavaScript50% Other -
$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 -
$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
37.7/40.018.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.9/40.019.6/20 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
39.3/40.019.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% 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 -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% 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+$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 -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Web Development45% JavaScript40% 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 - 9,999L'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 -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development15% JavaScript70% Other -
$10,000+< $25 / hr250 - 999Kolkata, India
Ability to deliver
36.3/40.019/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% 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 -
$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 -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
38.2/40.018.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$1,000+< $25 / hr1,000 - 9,999Los Angeles, CA
Ability to deliver
36.9/40.019.6/20 Reviews9.3/10 Clients & Experience8/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.8/40.018.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.4/40.016.4/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
37.9/40.018.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.1/40.019.4/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% 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.