Top JavaScript Developers
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 91 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development and engineering service provider specializing in full-stack web development and custom website development. The company consistently receives positive feedback, with approximately 95% of reviews highlighting their high-quality developers and management excellence. Clients frequently commend their project management skills and responsiveness, making them a reliable partner for complex web programming and online development projects.
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$25,000+$50 - $99 / hr10 - 49Chișinău, Moldova
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See all 6 projectsOpentech is a comprehensive Web Development company specializing in Custom Website Development and Full-Stack Web Development. Across reviews, 100% of clients highlighted their excellent communication, timely delivery, and exceptional flexibility, contributing significantly to clients' business growth. Notably, 50% of reviewers appreciated their ability to integrate seamlessly as an extension of the clients' tech departments.
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$10,000+$25 - $49 / hr50 - 249Greater Noida, India
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See all 7 projectsBrim Labs is a comprehensive web development company specializing in custom website and full-stack web application development. Across reviews, 85% highlight their responsiveness, on-time delivery, and adeptness in both front-end and back-end development. Clients commend their ability to align with business needs and deliver high-quality solutions, with a 99.8% average project uptime reported.
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$5,000+$25 - $49 / hr10 - 49Rīga, Latvia
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See all 1 projectsBright is a digital agency specializing in developing engaging online games, demonstrated by their work on educational projects focused on circular economy themes for youth. Reviewers unanimously praise Bright for their customer-oriented approach, timely deliverables, and exceptional patience, with 100% positive feedback highlighting their effectiveness in project management and creative collaboration.
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$1,000+$50 - $99 / hr2 - 9
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See all 2 projectsHypercon is a web development company specializing in website design, custom website development, and full-stack web development. Reviews indicate a strong focus on effective communication and timely delivery, with 100% positive feedback highlighting their availability, speed, and innovative solutions. Clients appreciate their commitment and seamless collaboration, making them a reliable partner for online development projects.
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$1,000+$50 - $99 / hr2 - 9Rīga, Latvia
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See all 1 projectsBS AGENCY is a web development company specializing in Website Design and Development, with a focus on custom, elegant solutions. Reviews highlight their exceptional understanding of industry trends and commitment to timely delivery, with 100% of reviewers praising their interpersonal approach and industry knowledge. Their ongoing partnerships and successful project outcomes underscore their competence in Full-Stack Web Development.
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$25,000+$25 - $49 / hr10 - 49
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See all 16 projectsWOXAPP is a mobile and web development company providing services in UX/UI design, application development, and project management. They are recognized for their expertise and thoughtful approach, with 100% of reviewers praising their communication and project involvement. While 83% were satisfied with their innovative solutions, some noted areas for improvement in testing and assertiveness. Overall, client feedback is predominantly positive, making them a reliable choice for development projects.
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$50,000+$100 - $149 / hr10 - 49Vancouver, Canada
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See all 15 projectsA.Y. Technologies A.Y. Technologies is a web development company specializing in custom web and application development, evidenced by their expertise in Full-Stack Web Development and Web Application Development. Reviews highlight their strong project management and technical skills, with 100% positive feedback on timely delivery and problem-solving abilities. Approximately 30% of reviewers noted areas for improvement in UI/UX design.
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$25,000+$100 - $149 / hr10 - 49Szczecin, Poland
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See all 1 projectsGrupa.IT is a web development company specializing in custom website development and web application development. The company has consistently received positive feedback, with clients highlighting their commitment, attention to detail, and effective communication. Approximately 90% of reviewers emphasize the importance of their collaborative approach and adherence to project timelines.
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$5,000+$50 - $99 / hr2 - 9
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See all 13 projectsItec Media is a web development company specializing in comprehensive website design, custom website development, and SEO optimization. Consistently praised for their technical competence and project management, 100% of reviews highlight their punctuality, responsiveness, and exceptional communication. Clients appreciate their attention to detail and ability to deliver tailored, high-performing websites that align with brand standards and objectives.
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$5,000+$50 - $99 / hr2 - 9Bengaluru, India
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See all 2 projectsSmarter.Codes is a web development company offering comprehensive services, including full-stack web development and web application development. The reviews highlight their professionalism, strong project management, and impressive service range, with 100% positive feedback emphasizing their capability and effective communication. Clients appreciate their ability to manage complete product development efficiently.
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$10,000+$25 - $49 / hr10 - 49Manchester, England
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See all 2 projectsTiksom Limited is a versatile app development company noted for its effective project execution and customer service. With approximately 90% positive feedback, clients highlight their strong communication skills, technical expertise, and responsiveness, even across time zones. Tiksom Limited excels in enhancing app functionality and user experience, contributing to successful app launches with minimal issues.
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$5,000+$25 - $49 / hr10 - 49Rajkot, India
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See all 8 projectsownAI Solutions is a web development company specializing in web design, front-end development, and full-stack web development services. The reviews highlight their excellent communication, proactive problem-solving, and efficient project management. Notably, 100% of the reviewers praised their responsiveness and ability to deliver projects on time, while 67% emphasized their innovative suggestions for enhancing project outcomes.
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$5,000+$150 - $199 / hr10 - 49Salt Lake City, UT
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See all 12 projectsKsense Technology Group LLC is a custom web development company specializing in full-stack web development, including web design and web application development. Their reviews reflect a 100% positive feedback rate, with clients praising their responsiveness, professionalism, and the value for cost. Notably, 80% of reviewers highlight Ksense's ability to deliver user-friendly, high-quality solutions tailored to client needs.
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$50,000+$50 - $99 / hr50 - 249Novi Sad, Serbia
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See all 7 projectsZESIUM is a web development company specializing in front-end and mobile solutions, offering custom website development built on ASP.NET and AngularJS. Reviews indicate a satisfaction rating of 3.46 out of 4, highlighting strong communication, integration, and responsiveness, with 100% of reviewers emphasizing their ability to adapt to client needs and their commitment to collaboration.
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$1,000+$100 - $149 / hr2 - 9Erie, PA
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See all 16 projectsweCreate is a web development company specializing in custom website development, e-commerce solutions, and enhancing online presence. The firm consistently receives positive reviews, with clients praising their professional project management, responsiveness, and ability to adapt to evolving project scopes. Approximately 90% of feedback highlights their dedication and comprehensive web design services.
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$25,000+$50 - $99 / hr50 - 249Chişinău, Moldova
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See all 19 projectsEBS Integrator is a full-stack web development company renowned for its expertise in custom website development and web application development. Clients consistently praise their responsive communication and client-first approach, with 100% of reviewers highlighting their impressive project management and problem-solving capabilities. However, some feedback notes room for improvement in testing third-party integrations.
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$10,000+$25 - $49 / hr10 - 49Mérida, Mexico
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See all 4 projectsSmart Thinking is a technology solutions company specializing in app development and business process automation. The firm is praised for its innovative solutions, effective team integration, and strong communication skills. With 100% positive feedback, clients highlight their creativity, flexibility, and professional project management. Notably, 75% of reviews mention their ability to exceed expectations and effectively address client needs.
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$25,000+$150 - $199 / hr2 - 9Ambler, PA
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See all 2 projectsKing Design is a web development company specializing in website design and development. Their clients commend them for delivering modern, clean, and responsive web designs, as well as for their effective project management. The company receives 100% positive feedback, with reviewers highlighting their creativity and efficiency, which resulted in increased website traffic and engagement.
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$50,000+$25 - $49 / hr50 - 249Dnipro, Ukraine
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See all 10 projectsArcher Software, Cprime Group Company is a versatile software development firm offering services in staffing, project management, and technology solutions across diverse industries. Reviews highlight their adaptability, communication, and commitment to deadlines, with approximately 90% of clients expressing satisfaction with their professionalism and technical competence. They are praised for their ability to quickly understand client needs and provide tailored solutions, maintaining high-quality standards and flexibility in team scaling.
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$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 8 projectsProexe is a mobile app development company known for its expertise in creating customized solutions across various platforms such as iOS, Android, and TV applications. They are highly praised for their effective project management, responsiveness, and ability to deliver high-quality software promptly, as reflected by the 90% positive feedback across reviews. Clients frequently commend Proexe's proficiency in handling complex projects, with 70% of reviewers noting their flexibility and problem-solving capabilities.
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$10,000+$100 - $149 / hr10 - 49Bournemouth, England
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See all 37 projectsCold Banana Limited is a web development company specializing in custom website development, web application development, and full-stack web development. Across reviews, 100% of clients praise their project management, timely delivery, and deep technical expertise in platforms like Umbraco, resulting in improved web performance and user engagement. Their commitment to understanding business needs ensures tailored digital solutions.
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$5,000+< $25 / hr10 - 49Hyderabad, India
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See all 1 projectsColladome IT Network Solutions Pvt Ltd is a company specializing in brand discovery and development, as well as mobile application development using technologies like Flutter and Node JS. The reviews highlight their professionalism, expertise, and innovative approach, with 100% positive feedback praising their project management skills, quality deliverables, and cost-effective solutions. Their commitment to excellence and valuable insights are consistently noted by clients.
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$1,000+$100 - $149 / hr2 - 9
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See all 32 projectsVisualwebz, LLC is a web development company specializing in custom website development, web design, and SEO services. The overall feedback from their reviews is notably positive, with over 80% of clients highlighting their exceptional responsiveness and quality of work. Clients consistently praise their ability to deliver professional and functional websites that meet specific business requirements, along with effective project management and communication.
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$1,000+$25 - $49 / hr2 - 9Dhaka, Bangladesh
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See all 1 projectsTargetWise is a web development company specializing in custom website development and web design. Over 90% of their feedback is positive, with clients highlighting excellent project management and effective SEO results. Reviewers frequently commend the company's value for cost and the personal engagement of their project manager.
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$10,000+$25 - $49 / hr50 - 249Ivano-Frankivsk, Ukraine
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See all 5 projectsSP//DEV is a web development company specializing in custom website development, web application development, and full-stack web development. Across their reviews, they are praised for their adherence to deadlines, proactive communication, and adaptability to complex projects, with 100% of reviewers highlighting their professionalism and technical competence. They are known for seamless integration of designs into responsive and high-quality websites, meeting both client and project-specific needs effectively.
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$1,000+$25 - $49 / hr10 - 49Lagos, Nigeria
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See all 3 projectsTAGDEV TECHNOLOGIES LIMITED is a web development company specializing in building websites with a focus on branding strategies. The reviews highlight their professionalism and ability to simplify complex ideas, with 100% of feedback noting their impressive communication and fresh designs. However, slight improvements in sticking to timelines were suggested.
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$1,000+$50 - $99 / hr2 - 9Rijeka, Croatia
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See all 9 projectsCOdizajn is a web development company specializing in custom website development and web design. With a focus on delivering high-quality, responsive solutions, 100% of reviewers highlighted their effective communication and project management skills. Clients praised their ability to meet project timelines and the ease of collaboration, underscoring their commitment to client satisfaction and impressive web development capabilities.
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$25,000+$150 - $199 / hr2 - 9Brooklyn, NY
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See all 3 projectsMilkshake Studio is a comprehensive design and digital agency, specializing in brand design, website development, and mobile application design. Their clients report a high level of satisfaction, with 100% positive feedback, highlighting the agency's commitment to quality and collaboration. Clients commend Milkshake Studio's ability to effectively manage projects and deliver visually appealing and impactful products.
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$5,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 2 projectsCelestials Technologies is a web development company specializing in full-stack web development and web application development. Reviews highlight their expertise in delivering high-quality, scalable software solutions, with 100% of the reviewers praising their communication and project management skills. Clients commend their ability to meet deadlines and budgets, with 90% satisfaction in timeline adherence.
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$50,000+$150 - $199 / hr10 - 49
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See all 2 projectsPush10 Design Studios is a web design company known for their creative and efficient project management skills. Reviews indicate a high level of customer satisfaction with 100% positive feedback highlighting their strong design aesthetics and effective communication processes. Approximately 50% of clients mentioned their ongoing relationships with Push10, emphasizing their trust and satisfaction with the company's services over time.
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$10,000+< $25 / hr50 - 249Surat, India
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See all 2 projectsMicraSol LLP - App Development Company is a versatile firm specializing in Web Development, including Web and Mobile App Development, and SaaS solutions. With a 100% positive feedback ratio, reviewers highlight their partnership approach and value-driven service, emphasizing their effective project management and timely delivery. Approximately 50% of reviews mention their web development expertise.
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$5,000+$50 - $99 / hr2 - 9Cranford, NJ
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See all 10 projects12 Tech is a web development company specializing in custom website development, web programming, and full-stack web development. Clients commend their technical expertise and transparent communication, with 100% of reviews highlighting their ability to explain complex concepts in understandable terms. They excel in project management and foster strong partnerships, although scaling capacity may be a concern for potential clients.
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$1,000+$100 - $149 / hr2 - 9
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See all 18 projectsCubiFlow is a web development company excelling in full-stack web development, web design, and web application development. With 100% positive feedback, clients commend their combination of strategic thinking and high-level design execution, as well as their responsive communication and ability to meet deadlines. Reviews highlight their attention to detail, customer service, and ability to understand and execute clients' visions, making them a preferred partner for custom website development projects.
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$25,000+$25 - $49 / hr10 - 49Wrocław, Poland
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See all 8 projectsoakfusion is a proficient web development company specializing in custom web solutions, including front-end and back-end development. Reviews highlight their effective communication and experienced developers, with 100% positive feedback on their ability to integrate seamlessly with existing teams and improve project delivery speed and quality. Clients commend their reliability and commitment to project success.
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$5,000+$100 - $149 / hr10 - 49Reston, VA
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See all 3 projectsTGD Creative Strategies & Solutions is a design and web development company offering services such as magazine design, website redesign, and brand development. Reviewers consistently highlight their responsiveness, adherence to deadlines, and personalized service, with 100% positive feedback regarding their project management and communication. Clients appreciate their flexibility, comprehensive service offerings, and commitment to project success.
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$1,000+< $25 / hr250 - 999Surat, India
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See all 2 projectsArtoon Solutions Pvt Ltd is a versatile software and web development company known for providing comprehensive development, design, and SEO services. The reviews highlight their exceptional project management, collaborative approach, and ability to deliver high-quality work. Approximately 100% of reviewers emphasize their responsiveness and dedication, leading to successful long-term partnerships.
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$1,000+< $25 / hr50 - 249Noida, India
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See all 14 projectsClixLogix is a web development company known for its proficiency in custom website development, front-end development, and full-stack web development. The company consistently receives positive feedback, with 100% of reviews praising their ability to deliver projects on time and within budget, while also commending their adaptability and effective communication throughout the project lifecycle.
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$25,000+$50 - $99 / hr10 - 49London, England
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See all 4 projectsBitorix is a software development firm specializing in custom software solutions, including fintech systems and NFT platforms. Reviews indicate a high level of customer satisfaction, with clients praising their strong technical expertise, agile project management, and timely delivery. Notably, 100% of reviewers highlighted Bitorix's impressive technical capabilities and effective communication, underscoring their reputation as reliable and innovative partners.
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$25,000+< $25 / hr10 - 49Sahibzada Ajit Singh Nagar, India
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See all 2 projectsEsteplogic IT Solutions Pvt. Ltd is a web development company specializing in full-stack web development, including front-end and back-end development. Review feedback highlights their ability to deliver quality websites, with approximately 14 completed annually. Clients commend their responsiveness and commitment, with over 90% reflecting positive experiences, although minor language barriers are noted.
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$1,000+< $25 / hr50 - 249Cerritos, CA
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See all 4 projectsHire Live Support Inc is a company specializing in administrative support and customer service management. They have received overwhelmingly positive feedback, with clients praising their professionalism, cost-effectiveness, and timely delivery. Approximately 100% of reviewers noted improvements in efficiency and customer satisfaction following their engagement with Hire Live Support Inc.
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$10,000+$50 - $99 / hr10 - 49
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See all 5 projectsUbik Group is a web development company specializing in full-stack web development and custom website development. Feedback indicates a 100% positive experience, highlighting their professional and reliable project management style. Their efficiency in onboarding resources stands out as a significant strength, making complex projects less stressful and more efficient.
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$1,000+$25 - $49 / hr10 - 49Тоshkent, Uzbekistan
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See all 2 projectsIT Brick is a software development company specializing in field service management solutions. The reviews highlight their ability to enhance business efficiency and reduce operational costs, with 100% positive feedback from clients. Reviewers commend their strong negotiation skills and effective project management, with no areas for improvement mentioned.
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$1,000+$25 - $49 / hr2 - 9Casper, WY
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See all 3 projectsAR Webcrafts LLC is a web development company specializing in custom website development and SaaS architecture. With a focus on technical precision and strategic thinking, they deliver scalable web solutions and exhibit strong project management skills. Positive feedback is prevalent, with 100% of reviewers highlighting their responsiveness and proactive communication. Clients commend their ability to improve website performance and streamline operations.
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$25,000+$25 - $49 / hr50 - 249Vasai-Virar, India
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See all 10 projectsVervali Systems Pvt Ltd is a versatile IT services company specializing in quality assurance (QA), testing, and project management solutions. The company consistently receives high praise from clients, with approximately 98% of reviews highlighting their timely delivery, professionalism, and effective communication. Clients are particularly impressed by Vervali's strong project management skills and their ability to work collaboratively, with several reviewers lauding the quality of their work and attention to detail.
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$5,000+$50 - $99 / hr10 - 49Singapore, Singapore
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See all 6 projectsCrescentic Digital is a web development company specializing in custom website development, full-stack web development, and web application development. The feedback is overwhelmingly positive across all reviews, highlighting their proficiency, professionalism, and effective communication. Approximately 85% of reviewers commend their technical expertise and ability to align digital solutions with business objectives.
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$5,000+$100 - $149 / hr10 - 49Chicago, IL
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See all 4 projectsFresh Design Studio is a web development company specializing in Website Development and Web Design. With a focus on client satisfaction, 100% of reviewers commend their responsiveness and problem-solving abilities. Clients appreciate their efficient project management and design expertise, with no reported areas for improvement. Fresh Design Studio is recognized for its outstanding customer service and commitment to delivering professional, engaging websites.
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$1,000+< $25 / hr10 - 49
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See all 3 projectsAdvetfly Solutions LLP is a proficient web development company specializing in website development and web design services. They are praised for effectively executing projects using Webflow and maintaining clear communication with tools like Slack and Figma. With 100% of reviews highlighting their proactive work culture and task understanding, they have received overwhelmingly positive feedback.
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$10,000+$25 - $49 / hr50 - 249
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See all 25 projectsChicMic is a web development company specializing in custom website development, web design, and web programming. Clients consistently praise ChicMic for their technical expertise, effective communication, and prompt responsiveness. With 100% of reviewers highlighting their ability to handle complex projects and deliver quality work on time, ChicMic is recommended for its professionalism and thorough project management.
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$5,000+$100 - $149 / hr2 - 9
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See all 7 projectsCompire is a web development company specializing in full-stack web development and custom website development. Reviews highlight their exceptional communication skills and ability to deliver creative solutions, with 100% positive feedback on meeting deadlines and effective project management. Notably, 50% of reviewers commend their capability to handle complex web programming challenges proficiently.
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Undisclosed$50 - $99 / hr50 - 249Essen, Germany
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See all 18 projectsPromwad is an engineering and development company offering a broad range of services including hardware design, software development, and embedded solutions. Their reviews highlight strong technical capabilities, timely delivery, and flexibility in project execution. Approximately 90% of reviewers praised their expertise and responsiveness, though some mentioned minor communication challenges. Overall, Promwad is well-regarded for their professionalism and ability to meet diverse technical needs.
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List of the Top 15 JavaScript Development Companies
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$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
39.3/40.019.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
60% Web Development50% JavaScript40% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.7/40.018.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% 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+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Web Development40% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
38.7/40.019.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development90% JavaScript50% Other -
$10,000+$50 - $99 / hr50 - 249Amsterdam, Netherlands
Ability to deliver
39.1/40.019.8/20 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 -
$5,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% 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 -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.2/40.019.2/20 Reviews10/10 Clients & Experience10/10 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 -
$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+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37/40.018/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$10,000+$25 - $49 / hr50 - 249Kraków, Poland
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Web Development50% JavaScript80% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.1/40.016.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.1/40.018.2/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+$50 - $99 / hr10 - 49Covina, CA
Ability to deliver
37.5/40.017.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
55% Web Development80% JavaScript45% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.3/40.018.8/20 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
36.5/40.016.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
45% Web Development10% JavaScript55% Other -
$25,000+$50 - $99 / hr50 - 249L'viv, Ukraine
Ability to deliver
39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Web Development40% JavaScript70% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.1/40.016.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.5/40.015.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$25,000+$50 - $99 / hr10 - 49Wrocław, Poland
Ability to deliver
38.1/40.018.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development70% JavaScript60% 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.