Top JavaScript Developers
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Featured
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 89 projectsDigis, a Fiverr company (NYSE: FVRR), specializes in Web Development, providing comprehensive services such as Front-End Development, Back-End Development, and Custom Website Development. Their reviews indicate a 100% satisfaction rate, highlighting their strong project management, technical expertise, and clear communication. Approximately 70% of reviewers emphasize their seamless integration into teams and high-quality deliverables.
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$1,000+< $25 / hr10 - 49Lucknow, India
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See all 1 projectsAkestech Infotech Pvt Ltd is a digital marketing agency specializing in managing digital platforms and developing websites. Feedback highlights their technical expertise, proactive approach, and seamless workflow, with 100% positive reviews. They achieved a 175% target increase in online marketing, indicating their effectiveness in generating business inquiries and enhancing search engine presence.
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$25,000+$25 - $49 / hr10 - 49Dammam, Saudi Arabia
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See all 12 projectsResquadAI is a proficient Web Development company specializing in Full-Stack Web Development and Custom Website Development. With 100% positive feedback, clients praise ResquadAI for their innovative approach, effective project management, and ability to maintain seamless communication, ensuring successful project outcomes and fostering strong partnerships. Their alignment with client values and budget considerations further underscores their commitment to delivering exceptional service.
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$5,000+$50 - $99 / hr2 - 9Tampa, FL
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See all 2 projectsDEVDAT is a web development company specializing in full-stack web development and web application development. The reviews highlight a strong alignment with client values, exceptional project management, and effective communication, with 100% positive feedback emphasizing their timely and budget-conscious project delivery. Clients appreciate their deep understanding of the problem space and collaborative approach.
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$1,000+< $25 / hr2 - 9
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See all 3 projectsKaptcha Softwares is a web development company that specializes in custom website development and full-stack web development. The overall feedback from clients reflects a 100% positive experience, with particular commendation for their impressive project management and knowledge, resulting in professional and responsive websites.
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$1,000+$25 - $49 / hr2 - 9Pannipitiya, Sri Lanka
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See all 2 projectsTassei Tech offers Website Development and Web Programming services, as evidenced by their creation of a Construction Management System. The reviews highlight their efficiency, dedication, and ability to deliver high-quality solutions, with emphasis on providing exceptional user experience and meeting client expectations through a collaborative approach. Clients reported significant improvements in project management efficiency and decision-making capabilities.
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$5,000+$50 - $99 / hr2 - 9
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See all 1 projectsClaris is a web development company that specializes in web programming and custom website development. Reviews highlight their technical expertise, flexibility, and seamless integration into client workflows. A significant portion of feedback (nearly 100%) praises Claris for delivering projects on time and providing valuable contributions through their knowledgeable and patient team.
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$10,000+$50 - $99 / hr2 - 9Udine, Italy
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Ensoul is an Udine, Italy-based website development company and e-commerce development company. They focus on Web Development and E-Commerce Development and were founded in 2015.
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$1,000+$50 - $99 / hr10 - 49Poznań, Poland
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See all 6 projectsTRUI Software House specializes in Custom Website Development, demonstrating high technical skills in stable solutions and effective project management. Positive feedback is consistent, with 100% of reviewers satisfied with their Full-Stack Web Development capabilities. There's a noted opportunity for improvement in communication methods.
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$10,000+$25 - $49 / hr2 - 9
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See all 3 projectsDevsart Solutions is a proficient software development company, offering tailored solutions such as scheduling management software and project flow charts. Their services are highly praised, with 100% positive feedback highlighting their exceptional professionalism, quick adaptability, and impressive value for money. Clients appreciate their responsiveness and dedication, with many noting their outstanding service and willingness to exceed expectations.
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$1,000+< $25 / hr2 - 9
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See all 3 projectsOne Design Technologies specializes in Website Development, providing comprehensive services such as Web Design and Custom Website Development. The company is praised for its proactive approach, with 100% of reviewers noting their helpful suggestions and unique insights into marketing and conversion optimization. Overall feedback is overwhelmingly positive, highlighting their effective communication and high-quality deliverables.
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$10,000+Undisclosed10 - 49Irvine, CA
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See all 5 projectsINSTALOPER, LLC is a web development company recognized for their expertise in Website Development and Web Design. The firm receives overwhelmingly positive feedback, with notable achievements including a 25% reduction in bounce rate and a 15% increase in conversion rate. Clients appreciate their exceptional project management and attention to detail, though minor initial delays were noted.
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Undisclosed$25 - $49 / hr10 - 49Kolkata, India
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See all 1 projectsWebbies is a web development company that excels in custom website development and web design. According to reviews, they demonstrate a deep understanding of client needs, with 100% positive feedback highlighting their intuitive design sense and commitment to deadlines. Their professional approach and flexibility have been widely appreciated, resulting in a website that effectively communicates the client's mission and goals.
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$100,000+$25 - $49 / hr2 - 9Sofia, Bulgaria
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See all 2 projectsWhite Lotus Order Solutions BG is a web development company specializing in Website Development and Web Design, known for crafting interactive WordPress sites and custom software solutions. With 100% positive feedback, clients commend their problem-solving intensity and effective project management, while recommending enhanced communication for potential improvements.
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Undisclosed$25 - $49 / hr10 - 49denpasar, Indonesia
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See all 1 projectsDigilogik, a web development company, excels in full-stack web development and web application development, providing flexible and skilled support to augment clients' core teams. With 100% positive feedback, clients commend their ability to deliver tasks on time and adapt resources efficiently. Their flexibility and commitment to professional standards are consistently highlighted by reviewers.
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$5,000+$25 - $49 / hr10 - 49Faisalabad, Pakistan
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See all 1 projectsUnixsol is a web development company specializing in Website Development, SEO, and custom solutions tailored to client needs. Reviews highlight their exceptional project management, responsiveness, and ability to deliver high-quality results on time. With 100% positive feedback, Unixsol impresses with their professionalism, technical expertise, and commitment to client satisfaction.
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$5,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 1 projectsMergestack is a software development company praised for its ability to enhance internal analytics and reputation improvement software through feature additions and bug fixes. They have received positive feedback for their responsiveness and alignment with client values, with 100% of reviewers noting their effective project management and delivery.
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$5,000+$50 - $99 / hr2 - 9
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See all 1 projectsCoherent is a full-stack web development company offering comprehensive services, including custom website development, web design, and digital marketing. Clients praise their flexibility and professionalism, with 100% of reviewers highlighting their effective communication and problem-solving skills, leading to widespread satisfaction with their web application development projects.
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$5,000+$50 - $99 / hr2 - 9Kolkata, India
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See all 2 projectsInnovatrix Infotech is a web development company known for its expertise in crafting custom websites and e-commerce solutions. With a focus on delivering high-quality web design and development, they have achieved a 100% positive feedback rate, praised for their attention to detail, effective project management, and ability to enhance brand presence online. Notably, 50% of reviewers highlighted their mobile optimization capabilities.
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$10,000+$150 - $199 / hr2 - 9Paris, France
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See all 1 projectsTHENODE LAB is a creative agency specializing in app development with a focus on design and user experience. The company's reviews highlight their exceptional design quality and fluid communication, with 100% of feedback praising their motivation, technical capabilities, and impressive UX outputs. Clients appreciate their collaborative approach and responsiveness, leading to high satisfaction with their services.
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$10,000+$25 - $49 / hr10 - 49Monterrey, Mexico
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See all 2 projectsInnatos Systems Group is a software development company focusing on creating tailored solutions for inventory control, e-commerce, and business administration. The reviews are overwhelmingly positive, with clients praising their professionalism, impact on business efficiency, and ability to adapt to market needs. Notably, 100% of reviewers report satisfaction with improved internal processes and increased sales.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsNeufango Labs Pvt. Ltd. is a mobile game development company recognized for its technical expertise and quality of work. The company demonstrates strong organizational skills and effective communication, with 100% of reviewers noting their satisfaction with the service provided. While project timelines may extend, they maintain high customer service standards, fostering a collaborative client relationship.
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$5,000+$25 - $49 / hr50 - 249Bat Yam, Israel
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See all 2 projectsAntosh&Co is a Full-Stack Web Development company praised for their professionalism and effective project management, with 100% positive feedback from reviewers. They excel in Web Development, Web Design, and Web Programming, notably in technologies such as Vue.js, Laravel, and Magento, ensuring timely completion and satisfaction across projects.
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$10,000+$100 - $149 / hr50 - 249
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See all 1 projectsFOXBEGIN is a mobile app development company known for its comprehensive project management and strong communication skills. The reviews highlight their ability to understand and execute client objectives effectively, with 100% of feedback being positive. Clients commend their willingness to accommodate changes and add valuable features, leading to high satisfaction with the final product, despite project timelines being extended.
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$25,000+Undisclosed50 - 249Noida, India
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See all 4 projectsKritiKal Solutions is a versatile technology company specializing in computer vision, machine learning, software development, and IoT solutions. Client feedback is predominantly positive, with 100% of reviewers highlighting their impressive talent pool and ability to meet project timelines. Some noted minor areas for improvement, including cost and UX capabilities. Overall, KritiKal Solutions is praised for its customer-centric approach and effective collaboration.
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$5,000+$25 - $49 / hr2 - 9London, England
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See all 3 projectsRemote Skills is a proficient web development company specializing in full-stack web development, website development, and web application development, as evidenced by their successful conversion of websites to Next.js and their work on Bitcoin tools. With 100% positive feedback, clients consistently praise their speed, responsiveness, and project management excellence. They deliver high-quality, scalable solutions while maintaining clear communication and alignment with client goals.
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$10,000+< $25 / hr10 - 49Bengaluru, India
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See all 2 projectsStavyah Technologies LLP is a software development company specializing in creating cloud-based platforms and CRM software. Reviews highlight their adaptability, customer-focused approach, and strong engineering capabilities. Clients appreciate their affordability and flexibility, with 100% of reviewers noting satisfaction with their services and the reliability of their solutions. Despite being a small company, they deliver high-quality technical support and effective project management.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsSoftPort is an outsourcing and custom software development company specializing in solutions such as customized software, websites, mobile applications, and graphic design. The company has consistently met expectations over five years, with 100% positive feedback highlighting their rigorous process-driven management style, led by UK professionals, and strong technical capabilities. Some clients noted a slight resistance to changing developers mid-project.
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$1,000+$50 - $99 / hr10 - 49Karachi, Pakistan
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See all 3 projectsCreatiVibe Labs is a web development company specializing in custom website development, with expertise in e-commerce solutions. Their reviews highlight efficient project management and professional communication, with 100% positive feedback noting their ability to meet deadlines and deliver value for cost. Approximately 100% of reviewers appreciate their respectful communication and effective campaign management.
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$75,000+$100 - $149 / hr10 - 49Collierville, TN
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See all 2 projectsFireKamp is a mobile app development company known for its excellent project management and forward-thinking approach. Reviews indicate a high level of satisfaction, with 100% positive feedback highlighting their commitment to quality, strategic planning, and alignment with client goals. Clients appreciate FireKamp's collaborative, team-oriented mindset and their ability to significantly enhance user engagement and app performance.
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$10,000+$50 - $99 / hr50 - 249
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See all 2 projectsDigimonk Technologies is a web development company specializing in web application development with an emphasis on Salesforce integration. Reviewers highlight their effective project management and open communication, leading to trustworthy partnerships. Notably, 100% of the feedback is positive, praising their adaptability and thorough understanding of project scope.
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$10,000+$25 - $49 / hr10 - 49
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See all 4 projectsRed Panthers is a web development company known for providing high-quality full-stack web development services. Approximately 80% of reviews highlight their effective communication and problem-solving skills, while their ability to manage time zone differences is frequently praised. However, there is room for improvement in matching developer expertise with client needs.
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$1,000+< $25 / hr2 - 9
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See all 4 projectsINTELLISQR CONSULTING LLP is a technology consulting firm specializing in custom digital solutions, including AI-driven applications, data analytics, and mobile app development. Their overall feedback is overwhelmingly positive, with clients praising their technical expertise, project management, and responsiveness. Notably, 100% of reviewers appreciated their adaptability to client needs and their ability to deliver projects on time, though a slight improvement in communication frequency or proactive risk assessment was suggested by a small minority.
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$5,000+$25 - $49 / hr2 - 9T'bilisi, Georgia
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See all 3 projectsEpica Dev is a web development company specializing in services such as Website Development, Web Design, and Custom Website Development. Across their reviews, 100% of clients praised their professionalism, timely delivery, and high-quality output. Notably, 66% appreciated their alignment with client values and flexible, impressive communication. Their success is marked by increased sales and enhanced brand visibility for clients.
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$5,000+$25 - $49 / hr2 - 9Novi Sad, Serbia
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See all 2 projectsITELLIGENTIX is a web development company specializing in custom website and app development, including web programming and web application development. Their reviews highlight a 100% positive feedback rate, with clients praising their on-time delivery, quick response, and effective solutions that enhance booking efficiency and streamline processes. They are highly recommended for their professional and efficient service.
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$1,000+$100 - $149 / hr2 - 9
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See all 10 projectsAllanzcom is a web development company specializing in creating custom websites. With a team of 2-5 employees, they excel in creativity, time management, and professional communication. Both reviews highlight their ability to deliver high-quality, professional websites that exceed expectations, with 100% positive feedback emphasizing their exceptional creativity, deadline compliance, and ongoing project support.
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$5,000+$100 - $149 / hr2 - 9
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See all 1 projectsCripeHub Solutions LLC is a business advisory firm specializing in technology, geopolitical risk, and regulation foresight. Overall, they received positive feedback, with 100% of reviewers praising their intelligence and understanding of complex agendas. While clients are satisfied with their punctual delivery and detail-oriented results, some suggest faster execution could enhance their services.
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$5,000+$25 - $49 / hr50 - 249Atlanta, GA
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See all 20 projectsPixact Technologies is a web development company specializing in eCommerce and website development with a strong focus on responsive design and user experience. They receive overwhelmingly positive feedback, with 100% of reviews praising their timely project delivery and communication skills. However, 100% of reviewers also suggest the need for more frequent progress updates during development.
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$5,000+$25 - $49 / hr50 - 249
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See all 1 projectsSIXSIGMA CLOUD SOLUTIONS PRIVATE LIMITED is a custom software development company specializing in secure API and web solutions. They excel in enhancing document accuracy and compliance, as evidenced by a 95% improvement in document accuracy and a 60% reduction in contract creation time. Client reviews highlight their technological expertise, high-quality work, and client-centric approach, with 100% positive feedback.
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$5,000+$25 - $49 / hr10 - 49Ludhiana, India
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See all 4 projectsVivirhub is a proficient Web Development company specializing in Custom Website Development and Online Development. Across reviews, 100% of clients appreciate their ability to understand visions, align requirements, and deliver reliable solutions, including bespoke CRM systems. While communication and domain knowledge were noted for improvement, their commitment to quality and project success is highly valued.
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UndisclosedUndisclosed2 - 9Mehsana, India
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See all 1 projectsYiion Systems is a comprehensive service provider specializing in software development, graphic design, and SEO, known for its exceptional customer support and project management. Reviews highlight their flexibility, professionalism, and 24/7 support, with 100% of feedback emphasizing their responsiveness and quality of service. Clients consistently praise their understanding and timely solutions.
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UndisclosedUndisclosed2 - 9
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See all 1 projectsProcessIT -Custom Software for YOUR Business... is a custom software development company specializing in creating tailored financial platforms and CRM systems. Reviews highlight their practical and realistic approach, with 100% positive feedback emphasizing effective project management and a significant 15% improvement in operational speed. Clients appreciate their ability to quickly isolate and address issues, leading to enhanced staff efficiency.
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Undisclosed$25 - $49 / hr10 - 49
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See all 5 projectsAlgoSaga Digital Marketing Agency specializes in web design, SEO, and social media marketing. They consistently receive positive feedback, with 100% of reviewers praising their creativity, strategic approach, and effective project management. Clients report measurable success, such as increased website traffic and social media engagement, contributing to enhanced brand visibility and customer interaction.
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$10,000+$50 - $99 / hr10 - 49
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See all 7 projectsIdelsoft is a web development company specializing in WordPress website redesign and development. Reviews indicate a mixed experience, with strengths in delivering user-friendly, optimized websites and ongoing support, but with timelines extending three times longer than expected. Communication and project scoping are noted as areas for improvement.
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$1,000+< $25 / hr10 - 49Ludhiana, India
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See all 1 projectsChrishan Technology Solutions Pvt. Ltd. is a software development company specializing in designing and developing e-learning platforms. The reviews highlight their ability to deliver innovative and functional solutions, with 100% of feedback praising their effective communication and problem-solving skills. Initial concerns about modern design standards were addressed promptly, leading to a highly satisfactory outcome.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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See all 3 projectsScriptune Solutions is a web development company specializing in custom website development and web design services. Their clients highlight effective project management, reasonable pricing, and timely delivery, with 100% positive feedback on aspects such as professionalism and cooperation. Clients appreciate their ability to meet SEO, accessibility, and performance standards, ensuring satisfaction and successful project outcomes.
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$5,000+$50 - $99 / hr50 - 249Newton, MA
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See all 3 projectsDevelop US is a web development company noted for its proficiency in web portal design, custom software development, and seamless SAP integration. The company is praised for its timely deliveries and updated technology use, with 100% of reviewers appreciating its value for cost. However, there is room for improvement in providing in-person support and advanced web technology expertise.
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$5,000+$50 - $99 / hr10 - 49Linden, NJ
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See all 1 projectsOpticsedge is a digital marketing agency known for developing effective marketing strategies and generating market-qualified leads. Reviews indicate a 100% satisfaction rate, highlighting their accommodating nature and strategic foresight. Clients report significant business growth, with doubled leasing rates and tripled lead generation within two months of implementing Opticsedge's strategies.
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UndisclosedUndisclosed10 - 49Skopje, North Macedonia
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See all 2 projectsXessable is a web development company specializing in modernizing software applications using advanced technologies such as .NET, Blazor, and MS SQL. Clients commend their project management skills, timely deliverables, and dedication to integrating solutions effectively, with 100% of reviewers noting their commitment to client needs and partnership.
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$1,000+$25 - $49 / hr10 - 49
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See all 3 projectsRyvilion specializes in Website Development, Web Design, and Web Programming, delivering exceptional online experiences. Reviews commend their technical expertise, creativity, and professionalism, resulting in visually appealing and seamless-functioning websites. Clients appreciate their efficient project management and responsiveness, though some suggest offering training for independent content updates. Overall, Ryvilion is highly recommended for their dedication to client satisfaction and excellence in Web Development.
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$5,000+$50 - $99 / hr2 - 9Ipoh, Malaysia
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See all 1 projectsTECHTICIAN is a web development company specializing in website development and SEO services. The feedback from their client highlights TECHTICIAN's rapid development process and effective communication, with 100% of the review describing a positive experience. Impressively, their services improved the client's online presence and search visibility, demonstrating their proficiency in custom website development and web application development.
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List of the Top 15 JavaScript Development Companies
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$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$75,000+$100 - $149 / hr50 - 249Vancouver, Canada
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
90% Web Development50% JavaScript10% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Web Development75% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
38.5/40.019.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Web Development60% JavaScript60% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.7/40.019.4/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
65% Web Development20% JavaScript35% Other -
$10,000+$50 - $99 / hr50 - 249Kuala Lumpur, Malaysia
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.5/40.017.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
39.8/40.019.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Web Development40% JavaScript85% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.6/40.018.6/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.8/40.017/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Kolkata, India
Ability to deliver
36.7/40.019.4/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
38.7/40.018.8/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$1,000+< $25 / hr250 - 999Walpole, MA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development25% JavaScript90% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.3/40.016.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.7/40.019.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.9/40.017.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$50 - $99 / hr250 - 999Marlborough, MA
Ability to deliver
38.7/40.019/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
25% Web Development25% JavaScript75% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.7/40.020/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
28% Web Development15% JavaScript72% Other -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
37.8/40.018/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.3/40.018.2/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38/40.018.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$10,000+$50 - $99 / hr10 - 49Montevideo, Uruguay
Ability to deliver
38.3/40.019.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.2/40.016.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other
Top JavaScript Development Agencies
A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.
Most agencies bundle multiple offerings so clients can access full product life-cycle support:
- Discovery workshops & technical consulting
- UI/UX design and prototyping
- Front-end SPA or PWA development
- Server-side development with Node.js or Deno
- API design, GraphQL, and microservices architecture
- QA automation & performance testing
- DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
- Post-launch maintenance and feature sprints
Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.
Clutch data shows project budgets range widely:
- MVP or small web app - $15,000–$50,000
- Mid-size product build - $50,000–$200,000
- Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.
- Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
- Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
- Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
- Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
- Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.
Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.
- Guaranteed timelines without discovery
- No access to source code repositories during the engagement
- Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
- Low developer retention or high turnover
- Vague pricing models or hidden fees
If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution
- Which JavaScript frameworks do you specialize in, and why?
- Can you walk me through a recent project with similar complexity?
- How do you ensure code quality—linting, peer reviews, automated tests?
- What is your approach to scalability and performance optimization?
- How will we communicate and track progress (tools, meeting cadence)?
- Who owns the intellectual property and source code upon project completion?
Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.
A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.
Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.