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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$1,000+$25 - $49 / hr2 - 9
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See all 8 projectsDevStitch is a web development company specializing in custom website development and full-stack web development. With an impressive track record, 100% of reviews highlight timely project delivery and exceptional problem-solving skills. Clients commend their ability to understand client needs, proactive communication, and seamless integration of diverse functionalities, making them a preferred choice for innovative web programming and online development projects.
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$1,000+$25 - $49 / hr2 - 9
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See all 2 projectsClickwebb specializes in Website Development and Web Programming, delivering exceptional custom-designed WordPress sites with a focus on creativity, technical expertise, and client satisfaction. Reviews highlight their exemplary project management, seamless communication, and commitment to client needs, though suggest improvements in initial briefing processes and more in-depth training sessions. Overall, clients report positive experiences and enhanced online engagement.
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$1,000+$50 - $99 / hr2 - 9
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See all 1 projectsSolvant IT Software House is a web development company highly praised for creating custom website development and optimizing sites for search engines. Their effective project management and timely delivery resulted in a 100% positive feedback, with significant increases in client inquiries and improved search engine rankings noted by 100% of reviewers.
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$5,000+$50 - $99 / hr2 - 9
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See all 1 projectsMacroMade Inc. - Out of Business was a web development company that specialized in creating websites tailored to client visions. Overall, reviews were positive, highlighting their ability to understand client needs and improve site navigation and visual appeal. Clients appreciated their effective communication and responsiveness, with 100% satisfaction in project management and no reported complaints.
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$25,000+$25 - $49 / hr2 - 9
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See all 1 projectsFAiTRiX is a software development company specializing in creating custom CRM systems. Their client reviews reveal a 100% satisfaction rate, highlighting their strong project management skills, responsiveness, and adaptability to client needs. Despite minor language barriers, clients appreciate their dedication and ability to deliver error-free systems that enhance business operations.
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$5,000+$25 - $49 / hr50 - 249Pune, India
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See all 14 projectsTru Performance Inc is a highly-regarded web development company specializing in Website Development, Web Design, and Web Programming. Reviews indicate a 100% positive feedback rate, emphasizing efficient project management, timely delivery, and error-free outcomes. Clients appreciate their customer-centric approach and technical proficiency, with 67% mentioning timely delivery and robust project management.
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$10,000+$25 - $49 / hr250 - 999Chernivtsi, Ukraine
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See all 1 projectsGlobal Staffing Support is a staffing solutions company specializing in sourcing C# .NET developers and QA roles for continuous development needs. With 14 years of collaboration, 100% of the feedback highlights their timely delivery and quality improvement in projects. However, 20% of reviews suggest improvements in cultural translation during near- or offshoring arrangements.
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$5,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 4 projectsDevfum is a web development company specializing in custom website development and full-stack web development, as evidenced by their work on a 3D immersive e-commerce platform for a client. 100% of the reviews highlight their responsive communication and professionalism, and most reviewers appreciate their adaptability and timely project management, despite occasional delays due to feature complexity.
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$5,000+$25 - $49 / hr10 - 49Islamabad, Pakistan
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See all 2 projectsDiveDeepAI offers services in Web Development and Web Programming, specializing in chatbot creation and Chat GPT integration. Reviews highlight the company's professional approach, technical expertise, and commitment to client satisfaction, emphasizing their ability to deliver customized, intuitive, and high-functioning solutions. Overall, DiveDeepAI is highly recommended for its exceptional service and collaborative nature.
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$50,000+$50 - $99 / hr10 - 49Granadilla, Costa Rica
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See all 2 projectsCreek Software is a custom software development company known for delivering high-quality, maintainable code and progressive digital solutions. Their reviews indicate a strong commitment to project success and customer satisfaction, with 100% of reviewers acknowledging their professionalism and effective project management. Clients commend their responsiveness and dedication, with no major areas for improvement mentioned.
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$1,000+< $25 / hr50 - 249Thành phố Việt Trì, Vietnam
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See all 4 projectsONEXT DIGITAL is a web development company specializing in custom website development and web design. Reviews highlight their expertise in WordPress and their exceptional communication skills, with 100% noting their professionalism and project success. They consistently exceed client expectations, providing innovative solutions and enhancing user experience across platforms.
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$1,000+< $25 / hr10 - 49Sousse, Tunisia
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See all 1 projectsBravo Byte is a marketing and web redesign company that assists businesses with enhancing their online presence. Feedback indicates a high level of satisfaction, with 100% of reviewers noting successful outcomes and effective communication. The company is praised for its quick responses, honest advice, and ability to increase global visibility and business opportunities.
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$1,000+$25 - $49 / hr2 - 9Mississauga, Canada
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See all 3 projectsSKYHiDEV offers Website Development and Web Design services, demonstrating responsiveness and a commitment to timely project completion. Their clients appreciate their effective communication and the ability to deliver optimized, user-friendly websites, leading to measurable improvements in online traffic. Overall, SKYHiDEV is praised for their professionalism and efficiency in handling web development projects.
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$1,000+$25 - $49 / hr2 - 9
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See all 2 projectsActinium is a web development company specializing in custom website development and redesign, with a strong focus on WordPress and Shopify platforms. Reviewers consistently praise Actinium's professionalism, creativity, and responsiveness, with 100% positive feedback highlighting their excellent project management and ability to meet deadlines. Their work significantly improves website performance, SEO, and client satisfaction, showcasing a commitment to exceeding expectations.
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$5,000+$50 - $99 / hr2 - 9București, Romania
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See all 1 projectsADY MEDIA DESIGN is a web development company specializing in custom website development and web design, with a focus on enhancing user experience and integrating AI functionalities. The feedback is overwhelmingly positive, highlighting their ability to deliver projects on time and within budget, with 100% of reviewers praising their flexibility and proactive approach.
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$1,000+$50 - $99 / hr2 - 9
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See all 1 projectsArray Developers is a comprehensive web and mobile application development company that also offers digital marketing services, including SEO. Based on their reviews, 100% of feedback is positive, highlighting their outstanding responsiveness and high-quality coding. Clients have reported improved search engine rankings and user satisfaction, and they recommend Array Developers for their exceptional project management and service delivery.
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$1,000+< $25 / hr10 - 49Bhopal, India
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See all 3 projectsInnctech Solutions is a web development company specializing in providing custom website development and full-stack web development services. The reviews highlight their strong commitment to timelines and responsiveness, with 100% of clients noting their impressive project management skills. Clients appreciate their ability to deliver complex projects efficiently, although one review suggested improvement in written communication without impacting the work quality.
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$1,000+< $25 / hr10 - 49Jaipur, India
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See all 2 projectsARS Digitech is a web development and app development company known for its transparency, responsiveness, and effective project management. They receive positive feedback for delivering projects on time and meeting client requirements, with 100% of reviewers noting their honesty and willingness to collaborate. Clients highlight the ease of communication with a single point of contact and commend their scalable project designs.
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$1,000+$50 - $99 / hr10 - 49Delhi, India
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See all 2 projectsDench Infotech is a web development company specializing in API integration and B2B system development. The feedback highlights their technical expertise, timely project delivery, and effective communication, with 100% of reviewers noting these strengths. Clients appreciate their quick response and value for cost, although marketing improvements are suggested for better visibility.
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$10,000+$25 - $49 / hr2 - 9Mazotos, Cyprus
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See all 2 projectsRelease ASAP is a web development company specializing in full-stack and custom website development. Their reviews indicate a strong work ethic and efficient project management, with 100% of clients highlighting their effective communication and timely delivery. This company is notably appreciated for maintaining and developing web-based fintech products.
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Undisclosed$50 - $99 / hrFreelancerOdry, Czech Republic
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See all 1 projectsMichaela Bartoňová - freelancer is an Android app developer who successfully delivered a project involving a single tall image with AdSense integration, compatible across all Android devices. The app achieved substantial success on Google Play, with tens of thousands of downloads and hundreds of positive reviews, indicating a high satisfaction rate. Clients noted effective workflow and had no specific areas for improvement.
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$5,000+$50 - $99 / hr10 - 49
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See all 5 projectsSeetru Studio Sdn Bhd is a web development company specializing in Website Development, Web Design, and Web Programming services. Reviews consistently highlight their professionalism, effective communication, and commitment to client satisfaction, with over 90% of feedback being positive. They are praised for their extensive experience and ability to understand and deliver client requirements efficiently, often providing innovative solutions and maintaining high standards in project execution.
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$1,000+$100 - $149 / hrFreelancerBarre, VT
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See all 5 projectsWits Enj Web Development and Design is a web development company specializing in custom website development, web design, and ongoing maintenance. Across their reviews, 100% of clients highlighted their efficiency, clear communication, and creative solutions as strengths. Clients praised their effective project management and the ability to deliver on time without any notable areas for improvement.
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$5,000+$50 - $99 / hr2 - 9Almaty, Kazakhstan
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See all 4 projectsODAXY Labs is a proficient mobile app development company known for delivering exceptional results, as evidenced by their successful project with Wayfarer-Journey. The team demonstrated technical expertise and commitment, with 100% positive feedback highlighting their ability to manage complex projects and deliver improved app performance and increased user engagement. Reviewers frequently commend their technical proficiency and attention to detail.
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$25,000+$50 - $99 / hr10 - 49
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See all 13 projectsFive Programmers is a web development company specializing in mobile app and custom website development, offering comprehensive solutions for enhancing business efficiency and communication. With a strong emphasis on attentive project management and effective communication, 100% of reviewers praised their ability to deliver projects on time and within budget, highlighting their excellent cultural fit and value for cost.
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$5,000+$25 - $49 / hr10 - 49
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See all 2 projectsVappar - The Consult Things is a versatile IT solutions provider specializing in IoT development and customized learning management systems. Reviewers commend their strong development skills, initiative, and flexibility, with 100% of feedback highlighting effective execution and professional conduct. Areas for improvement include customer delivery and project management skills, as noted by approximately 50% of clients.
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$1,000+< $25 / hr50 - 249Lahore, Pakistan
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See all 3 projectsCatalyic Tech is a web development company specializing in custom website development and full-stack web development. Clients praise their professionalism, timely project delivery, and effective communication, with 100% of reviewers expressing satisfaction with their services. Notably, they have developed projects using WordPress, Shopify, and PHP Laravel, demonstrating versatility in front-end and back-end development.
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$1,000+$25 - $49 / hr10 - 49New Delhi, India
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See all 2 projectsAcnosoft is a digital solutions provider specializing in SEO and website development. Reviews indicate a 100% positive feedback rate, highlighting their expertise in driving online growth, with a 70% increase in inquiries and 65% higher conversion rates. Clients commend their project management efficiency, responsiveness, and alignment with business goals, though minor website refinements were suggested.
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$10,000+$100 - $149 / hr2 - 9Lyndhurst, OH
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See all 8 projectsBamboo Software, LLC is a custom software development firm specializing in Web Application Development and Custom Website Development. The company receives consistently positive feedback, with clients highlighting their professionalism, clear communication, and ability to deliver projects on time and within budget. Approximately 100% of reviews emphasize their strong project management and adaptability to client needs.
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$1,000+< $25 / hr2 - 9
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See all 10 projectsOne0 is a proficient web development company specializing in Custom Website Development and Web Design. The company has consistently impressed clients with its responsiveness and communication skills, as evidenced by 100% positive feedback. Their expertise in adapting to new requirements and delivering high-quality, functional websites on time is particularly notable.
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$10,000+$25 - $49 / hr10 - 49Kington, England
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See all 7 projectsStarlio.tech is a web development company specializing in online development and custom website development. The company received 100% positive feedback across reviews, emphasizing their effective project management, timely delivery, and professional communication. Clients highlighted their ability to adapt to new technologies and deliver marked improvements in sales and internal efficiencies.
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$1,000+$25 - $49 / hr10 - 49Rangpur, Bangladesh
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See all 17 projectsCorexta is a versatile technology and web development company offering services such as cloud optimization and custom website development. Reviews indicate a 100% positive feedback rate for their project management, communication, and ability to understand client needs, with 50% highlighting their deep industry understanding. While minor improvements in post-launch support could be made, clients consistently praise Corexta for delivering reliable and tailored solutions.
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$1,000+$25 - $49 / hr2 - 9
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See all 9 projectsCodemarine Technologies is a web development company specializing in full-stack web development and custom website development, including web application development and web design. Their services received overwhelmingly positive feedback, with clients praising their on-time delivery, attention to detail, and ability to exceed expectations. Notably, 100% of reviewers commend their responsiveness, project management skills, and commitment to quality and customer satisfaction.
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$50,000+$150 - $199 / hr10 - 49Dallas, TX
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See all 3 projectsMagic Logix is a full-service web development company offering a range of services, including Web Development, Web Design, and SEO. The company is highly responsive and adaptable, with 100% of reviewers noting their responsiveness and project handling. While generally praised for their successful services, some reviews mention the need for improved progress reporting systems and note the increasing cost of their services over time.
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$25,000+< $25 / hr2 - 9Kallady, Sri Lanka
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See all 1 projectsMpowerr is a software development company specializing in creating complex prototype engines and solutions. They demonstrated exceptional technical prowess, achieving over 95% accuracy in 2D to 3D rendering tasks for a virtual wardrobe app. Reviewers consistently highlight Mpowerr’s cost-effectiveness and value for money, with 100% expressing satisfaction with their performance and timeliness.
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$5,000+$100 - $149 / hr2 - 9New York, NY
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See all 2 projectsMosaic Strategies Group is a versatile web development company specializing in custom website development and online solutions. The company receives consistently positive feedback, with clients praising their expertise in both front-end design and back-end development, as well as their excellent project management skills. Approximately 90% of reviewers highlight their ability to deliver tailored solutions while maintaining strong communication and support throughout the process.
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$1,000+< $25 / hr10 - 49Kochi, India
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See all 11 projectsBlue Horizon Infotech is a Web Development company specializing in Custom Website Development and WordPress solutions. The reviews highlight their exceptional speed and responsiveness, with 100% positive feedback emphasizing the CEO's great work ethic and the company's ability to deliver projects quickly and effectively.
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$5,000+$25 - $49 / hr50 - 249Pleasant Hill, CA
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See all 5 projectsEpik Solutions is a web development company offering services such as web application development, front-end development, and custom website development. The feedback is overwhelmingly positive, with 100% of reviewers highlighting their responsiveness and the ability to meet project goals, such as integrating CRM systems and enhancing website design. The company is praised for its competence and effective communication throughout project execution.
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$1,000+< $25 / hr2 - 9Sao Carlos, Brazil
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See all 1 projectsOluwa is a development company that specializes in creating websites and mobile applications, as demonstrated by their work with EU VÔ. Overall feedback is overwhelmingly positive, with clients praising their impactful contributions and effective project management. Notably, the client highlighted the strong relationship between Oluwa and its clients.
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$10,000+$25 - $49 / hr250 - 999Lahore, Pakistan
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See all 9 projectsRolustech is a versatile web development company specializing in custom website development and CRM solutions. With a strong focus on efficient project management, nearly 100% of reviewers commend their timely delivery and responsiveness. Clients appreciate their cost-effectiveness and proactive approach, with approximately 67% highlighting their ability to integrate web applications and reduce processing times significantly. Overall, no areas for improvement were identified.
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$5,000+$150 - $199 / hr10 - 49Conshohocken, PA
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See all 3 projectsFarotech is a digital marketing company that offers services such as web development, SEO, and PPC. According to reviews, they excel in increasing web traffic and providing actionable insights, with 100% positive feedback on their communication and client-focused approach. Reviewers commend their ability to deliver valuable, innovative solutions and strong consultation services.
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Undisclosed$50 - $99 / hr10 - 49Pardubice V, Czech Republic
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See all 2 projectsGeekCoders is a web development company specializing in full-stack web development and custom website development, with a focus on creating complex backend systems and API integrations. Their reviews highlight their flexibility and ability to meet tight deadlines, with 100% of reviewers praising their successful project management and problem-solving skills.
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$10,000+$25 - $49 / hr50 - 249Dubai, United Arab Emirates
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See all 3 projectsEmisoft Systems is a web development company specializing in custom website development and web application development. Clients praise their effective project management and ability to deliver complex solutions, with 100% of reviewers mentioning timely delivery and responsiveness. However, some suggest improvements in customer support for more personalized assistance.
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$1,000+$25 - $49 / hr50 - 249Lahore, Pakistan
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See all 11 projectsMaxobiz, a company specializing in Web Design and Development alongside Branding, has received positive feedback for its punctuality and commitment, with 100% of reviewers highlighting their timely responses and impressive teamwork. Clients appreciate their excellent work, making them a favorable choice for those seeking cost-effective solutions with a great cultural fit.
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Undisclosed$150 - $199 / hr50 - 249
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See all 1 projectsImagination Media is a web development company offering custom website development and ongoing maintenance services. They are praised for their responsiveness and effective project management, with 100% of clients appreciating their ability to integrate complex systems and maintain high service standards. Clients have noted their personal communication with the company's owner as an exceptional aspect of their service.
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$1,000+$25 - $49 / hr10 - 49Dubai, United Arab Emirates
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See all 2 projectsFuture Digital is a web development company offering services such as website enhancements, SEO, and social media support. Their reviews reflect a 100% positive sentiment, highlighting their expertise in SEO and content creation, efficient project management, and a deep understanding of client goals. Clients highly recommend them for their smooth communication and professional approach.
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$1,000+$50 - $99 / hr2 - 9Nairobi, Kenya
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See all 1 projectsAfrecce Digital Agency is a web development company specializing in Website Development and SEO services. Their support has led to a 25% increase in inquiries, showcasing their effectiveness in enhancing digital presence. Customer reviews highlight their punctuality, clear communication, and ability to simplify technical concepts, with 100% positive feedback noted.
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$25,000+Undisclosed2 - 9Chicago, IL
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See all 2 projectsRed Axle is a web development company specializing in website development, hosting configuration, and ongoing support. With over 90% of reviews highlighting their reliability and responsiveness, they consistently deliver projects on time and exceed expectations. Clients commend their ability to address emergencies promptly, demonstrating their commitment to customer satisfaction.
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$5,000+$150 - $199 / hr10 - 49Los Angeles, CA
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See all 2 projectsPlatform Purple, Inc. is a digital platform development company specializing in creating streaming and digital delivery solutions for video content. Their clients commend them for enabling business growth and providing robust technology solutions, with 100% of the reviews highlighting their reliable project management and impressive commitment to client needs. While time management was a noted area for improvement, clients appreciated their responsiveness and professionalism.
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$5,000+$25 - $49 / hr10 - 49
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See all 2 projectsEmpatix is a technology solutions provider specializing in AI-driven systems and software development, excelling in enhancing logistics, supply chain, and SaaS platforms. The reviews highlight their strong project management skills, proactive collaboration, and the ability to deliver impactful solutions, with 100% of reviewers appreciating their genuine partnership approach and technical expertise. Their contributions have led to significant operational improvements and successful project executions.
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List of the Top 15 JavaScript Development Companies
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$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$75,000+$100 - $149 / hr50 - 249Vancouver, Canada
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
90% Web Development50% JavaScript10% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39/40.019.2/20 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 -
$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 -
$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 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+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38.4/40.018.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$10,000+$25 - $49 / 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 -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
37.8/40.018/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$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 - 249Cypress, 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.