Top JavaScript Developers
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Featured
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$5,000+$25 - $49 / hr50 - 249London, EnglandServices provided
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See all 87 projectsDigis, a Fiverr company (NYSE: FVRR), is a web development firm offering comprehensive solutions in custom website development, full-stack web development, and web application development. With 100% positive feedback, clients commend their seamless integration into teams, high-quality deliverables, and responsiveness. Approximately 80% of reviews highlight their effective project management and communication, emphasizing their reliability and expertise in meeting project milestones.
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$10,000+$50 - $99 / hr10 - 49Toruń, Poland
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See all 7 projectsNetkodo is a full-stack web development company specializing in custom website development and web application development. Based on client reviews, 100% of feedback highlights their on-time deliverables and impressive project management. Clients commend their ability to drive significant growth and maintain organized communication, though some note time zone challenges.
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$1,000+$50 - $99 / hr2 - 9Cincinnati, OH
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See all 1 projectsHuman Friend Digital is a web development company that excels in Website Development, offering comprehensive services including Website Redesign, SEO Optimization, and Lead Generation. Positive feedback is prevalent, with clients highlighting their effective solutions and increased web traffic; 100% of the reviewers noted timely deliverables and impressive problem-solving capabilities.
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$5,000+$25 - $49 / hr2 - 9Karachi, Pakistan
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See all 3 projectsDigitaleap is a web development company specializing in custom website development and web application development. With 100% of reviewers expressing satisfaction, clients highlight their integrity, dedication, and ability to exceed expectations. They are praised for their comprehensive project management, problem-solving skills, and commitment to aligning with client visions.
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$10,000+$25 - $49 / hr10 - 49
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See all 2 projectsBig Digitals | Mobile & Web Development is a development company specializing in creating mobile applications and websites with a strong focus on user experience. Their team is praised for effective communication and client orientation, with 100% of reviewers expressing satisfaction and commendation for their responsive project management and deep understanding of client needs.
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$1,000+$25 - $49 / hr10 - 49
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See all 2 projectsTechxide is a professional design company specializing in logo creation. Based on client feedback, 100% of the reviews highlight their high-quality work and fast, professional service. Reviewers consistently praise their creativity and efficiency, with no areas identified for improvement.
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$1,000+$25 - $49 / hr10 - 49
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See all 2 projectsWebconne8 is a proficient web development company with expertise in custom website development and web application development. Garnering 100% positive feedback, reviewers consistently highlight their speed, professionalism, and integrity. Clients appreciate their ability to deliver projects on time while maintaining quality, as evidenced by their impressive execution of dynamic website functionalities and ongoing maintenance services.
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$1,000+$25 - $49 / hr2 - 9Cape Town, South Africa
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See all 3 projectsRubigo is a web development company specializing in custom website development and online platform integration. Reviews highlight a 100% positive feedback rate, with clients praising their project management, responsiveness, and deep product knowledge, all contributing to increased sales and operational efficiency. Their competitive pricing and alignment with client values are also frequently noted.
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$10,000+$50 - $99 / hr2 - 9Toronto, Canada
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See all 3 projectsMantrax Software Solutions specializes in CRM development and IT consulting, with a strong focus on project management. Client feedback highlights their responsiveness and ability to meet project timelines, with 100% of reviewers noting satisfaction with their project management skills. However, some suggest they could enhance their services by expanding their development team. Overall, Mantrax Software Solutions has received positive feedback for their performance and client engagement.
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$25,000+$25 - $49 / hr50 - 249
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See all 1 projectsPrimathon Technology Ventures Pvt Ltd is a technology solutions company specializing in backend development and digital product engineering for diverse clients, including startups and Fortune 500 companies. Their reviews are overwhelmingly positive, with 100% of clients highlighting their effective problem-solving skills and seamless project management, ultimately ensuring error-free product launches.
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Undisclosed$25 - $49 / hr50 - 249
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See all 3 projectsBridgeway Digital is a versatile digital solutions provider specializing in animated graphics, e-commerce website development, and explainer videos. The company is lauded for its responsive communication and high-quality deliverables, with over 90% of reviewers highlighting their impressive project management and cost-effectiveness. Areas for improvement include expanding expertise in specific technical aspects, such as Google Shopping feeds.
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$1,000+< $25 / hr50 - 249Jaipur, India
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See all 1 projectsAbstract Softweb is a web development company specializing in custom website development and web application development. Their services include website design, logo creation, and innovative solutions like online payment and testing features. The client reported a 100% satisfaction rate, noting effective project management and impressive delivery, such as meeting deadlines and achieving all project objectives.
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$5,000+$50 - $99 / hr2 - 9Edinburgh, Scotland
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See all 3 projectsPassio is a digital development company specializing in creating accessible web applications and tools. The reviews highlight their outstanding project management, dedication to accessibility, and collaborative approach, with 100% of feedback being positive. Clients commend their professionalism, attention to detail, and ability to work seamlessly with diverse stakeholders, making them an exceptional partner in delivering complex, inclusive technological solutions.
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Undisclosed$25 - $49 / hr2 - 9
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See all 1 projectsInspireXsolutions is a web development company known for its comprehensive services in Custom Website Development, Web Design, and social media integration. The reviews highlight the CEO's exceptional project understanding and impressive professional skills. With 100% positive feedback, clients appreciate the company's ability to effectively translate project goals into successful outcomes.
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$5,000+$50 - $99 / hr10 - 49Paramus, NJ
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See all 3 projectsArya57 LLC is a custom website development company specializing in Web Development and Web Application Development. The company has received positive feedback, with 100% of reviewers highlighting their strong project management and ability to deliver beyond expectations. Clients commend their flexibility and problem-solving skills, noting no areas for improvement.
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$10,000+$50 - $99 / hr10 - 49Los Angeles, CA
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See all 14 projectsAlena Solutions is a proficient web development company specializing in custom website development and web application development. The reviews highlight their responsive communication, timely delivery, and exceptional client satisfaction, with 100% of feedback citing positively on project management and responsiveness. Clients commend their expertise, noting significant improvements in site performance and user engagement, making Alena Solutions a trusted partner for comprehensive online development projects.
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$25,000+< $25 / hr50 - 249Dubai, United Arab Emirates
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See all 2 projectsCandour Technolabs is a web development company specializing in custom website development, web application development, and full-stack web development. They consistently receive positive feedback for their timely project delivery and technical expertise, with around 90% of reviewers praising their efficiency and communication skills. Areas for improvement include refining the process for final-stage detailing and polishing of projects.
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$1,000+$25 - $49 / hr10 - 49Coimbatore, India
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See all 3 projectsEpisyche Technologies is a web development company specializing in custom website and web application development, focusing on backend and frontend solutions. Reviews highlight their efficient project management, timely delivery, and technical proficiency, with 100% positive feedback underscoring their expertise in complex projects and responsive communication. Clients appreciate their understanding of project needs and commitment to quality.
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$5,000+$25 - $49 / hr10 - 49
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See all 1 projectsAlienlab is a web development company specializing in full-stack web development and web application development. The reviews indicate a strong emphasis on professionalism and the ability to deliver effective solutions, with 100% positive feedback highlighting their organized project management and excellent price/quality ratio. Many reviewers commend their commitment to security, crucial for fintech projects.
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$1,000+< $25 / hr10 - 49
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See all 2 projectsWitarist offers Web Development and related services, specializing in project redevelopment and application maintenance. The reviews highlight their prompt project management, effective communication, and alignment with clients' values, emphasizing their excellent understanding of project requirements. Clients appreciate Witarist's cost-effective solutions and cultural fit, with no suggested areas for improvement.
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$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 13 projectsCODEVISION TECHNOLOGIES PRIVATE LIMITED is a web development company specializing in custom website development and web design. With a focus on modernizing and securing websites, they receive 100% positive feedback for their technical expertise, effective communication, and adherence to deadlines. Reviewers frequently commend their ability to enhance usability and deliver projects efficiently, with no areas noted for improvement.
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$5,000+$25 - $49 / hr50 - 249Boynton Beach, FL
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See all 1 projectsDevDimensions is a full-stack web development company specializing in custom website development and web application development. Reviewers highlight their impressive technical expertise and ability to transform legacy platforms into modern, scalable products with features like user roles and mobile apps. The company is praised for its responsive project management and commitment to delivering high-quality solutions, with over 90% of feedback being positive.
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$5,000+$25 - $49 / hr2 - 9Quito, Ecuador
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See all 3 projectsAllient is a Full-Stack Web Development company praised for its ability to develop complex applications and provide innovative solutions for voice and mobile apps. With a focus on efficient project management and timely delivery, they have garnered positive feedback from 100% of reviewers, although some mention communication challenges due to non-native English proficiency.
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Undisclosed$50 - $99 / hr2 - 9Bengaluru, India
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See all 3 projectsZero2One Innovate Solutions LLP is a web development company specializing in custom website development and web application development. Their reviews reflect 100% positive feedback, highlighting impressive project management, timely delivery, and a user-focused design approach. Clients commend their attention to detail and commitment to exceeding expectations, making them an excellent choice for web development needs.
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$1,000+$100 - $149 / hr2 - 9
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See all 1 projectsMudryi Digital is a web development company praised for its expertise in Generative Engine Optimization and AI-driven strategies. Over 90% of reviewers highlight their effective web development and seamless project management, culminating in a 2.5x increase in conversion rates and a 40% rise in qualified leads. The company is lauded for its strategic partnership approach and innovative use of AI.
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$5,000+$25 - $49 / hr50 - 249Asunción, Paraguay
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See all 1 projectsAbstra is a technology company specializing in the development of scalable solutions for remote proctoring and exam monitoring. The overall feedback is highly positive, with 100% of reviewers praising their ability to deliver projects on time with high-quality results. Notably, clients commend their adaptability, technical expertise, and proactive support.
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$10,000+$25 - $49 / hr50 - 249
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See all 5 projectsAquSag Technologies is a versatile web development company renowned for its expertise in custom website development, web design, and web application development. With over 95% of feedback being positive, clients consistently commend AquSag for its cost-effective solutions, timeliness, and excellent communication. Reviewers frequently highlight the company's technical guidance and ability to align with client values and needs, ensuring seamless project execution and successful outcomes.
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$10,000+$50 - $99 / hr10 - 49San Juan, Puerto Rico
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See all 3 projectsHaipriori is a proficient web development company, specializing in custom website and web application development. The company has received overwhelmingly positive feedback, with 100% of reviews highlighting their dedication, timely delivery, and alignment with client values. Clients particularly appreciate their impressive energy and passion, which contribute to high-quality project outcomes and strong client relationships.
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$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 15 projectsBrainence is a full-stack web development company specializing in custom website development and web application development. Across reviews, 100% of clients express satisfaction with their services, highlighting their professionalism, responsiveness, and ability to deliver sophisticated platforms that exceed expectations. Their effective project management and strong communication skills are frequently praised, with no significant areas for improvement noted.
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$5,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 4 projectsZapal is a web development company specializing in custom website development and full-stack web development, offering services such as website design, web programming, and SEO. Across all reviews, Zapal is praised for proactive communication, technical expertise, and timely delivery, with 100% positive feedback highlighting their ability to exceed project expectations and adapt solutions to client needs. They are recognized for their innovation and alignment with client values, making them a preferred long-term partner.
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$5,000+$25 - $49 / hr50 - 249Surat, India
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See all 4 projectsKNOVATOR TECHNOLOGIES PRIVATE LIMITED is a web development company specializing in custom website development and web application development. They have received highly positive feedback, with clients praising their punctual delivery and effective communication. Impressively, 100% of reviewers mention their ability to meet deadlines, and all feedback highlights their significant impact on client success.
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Undisclosed$50 - $99 / hrFreelancer
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See all 2 projectsLinéa Digital is a specialized eCommerce development company known for building optimized online stores on platforms like Shopify and WooCommerce. The reviews highlight Alex's expertise and problem-solving capabilities, with both clients praising his responsive communication and ability to deliver high-performing websites. Notably, 100% of the reviews praised the speed and performance of the developed websites, emphasizing customer satisfaction and efficient project management.
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$1,000+< $25 / hr2 - 9Zaporizhzhia, Ukraine
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See all 10 projectsCreava Agency is a web development company specializing in website design and development. Feedback highlights their effective communication and understanding of client vision, with 100% of reviews noting timely deliverable completion. Clients appreciate the value for cost and recommend Creava Agency for their expertise in custom website development.
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$1,000+$25 - $49 / hr2 - 9Noida, India
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See all 1 projectsNetclubbed is a custom software development company that effectively supports businesses by providing strategic expertise and responsive service. With 100% positive feedback, clients commend their prompt communication, strategic insight, and impactful solutions. Netclubbed is recognized for delivering valuable results, enhancing operations and accounting capabilities, and being a reliable partner.
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$5,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 2 projectsMantrasoft India is a company specializing in Web Development and Web Application Development, with a strong focus on custom website solutions. The reviews highlight their efficient project management and dedication, with 100% positive feedback. Approximately 33% of reviewers emphasize their ability to deliver custom back-end systems tailored to specific business needs.
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$5,000+$50 - $99 / hr2 - 9Warszawa, Poland
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See all 2 projectsByteGeometry is a full-stack web development company specializing in custom website development and web application development. Notably, 100% of their feedback is positive, highlighting their exceptional project management, technical skill, and creative intuition. Clients commend them for delivering projects on time, capturing the envisioned concepts, and exceeding expectations with seamless, functional, and visually striking products.
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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsGruffi is a technology consultancy and development firm specializing in building complex modules for startups, such as secure payment gateways, business analytics services, and scheduling systems. Reviews highlight their consultative approach, with 100% of clients appreciating their thorough questioning and challenging of requirements. The firm is praised for its project management, though 20% suggest improvements in dedicated testing resources.
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$10,000+$150 - $199 / hr2 - 9
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See all 4 projectsBull & Beard is a web development company specializing in website development and design, including custom website development and responsive mobile solutions. Their reviews highlight a 100% positive feedback rate, with clients praising their transparency, effective project management, and professionalism. Approximately 50% of reviewers commend their ability to simplify complex topics and maintain excellent communication throughout the project.
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$1,000+$25 - $49 / hr10 - 49Moshi, Tanzania
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See all 19 projectsMAYOCOO is a web development company specializing in custom website development and responsive web design. Across their reviews, 100% of clients praised their attention to detail, timely delivery, and effective communication. Clients often highlighted their ability to create user-friendly websites that boosted online engagement and met specific business goals.
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$1,000+$25 - $49 / hr10 - 49Gothenburg, Sweden
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See all 4 projectsSource A Network AB is a web development company specializing in custom website and web application development. Reviews indicate a 100% satisfaction rate, highlighting their professionalism, timely delivery, and technical expertise. Clients commend their ability to transform ideas into scalable, user-friendly platforms, with 100% noting their effective project management and communication.
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$1,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 4 projectsSTART DESIGNS is a web development company specializing in Website Development and Custom Website Development. They have received highly positive feedback, with clients particularly praising their effective communication and professionalism. Approximately 100% of reviewers express satisfaction with the websites created, highlighting their dedication and expertise in various platforms.
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Undisclosed$150 - $199 / hr10 - 49Baltimore, MD
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See all 2 projectsAstriata is a branding and design agency specializing in comprehensive rebranding, website overhauls, and digital design solutions. The company consistently receives positive feedback, with clients highlighting their meticulous project management and ability to create impactful designs that elevate brand perception. Approximately 100% of reviewers commend Astriata's attention to detail and client-focused approach, noting the transformative impact of their design work on both external perception and internal morale.
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$10,000+$50 - $99 / hr10 - 49Zagreb, Croatia
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See all 7 projectsVirtual Factory is a distinguished Web Development company, offering comprehensive services such as Website Development, Web Programming, and SEO optimization. The overall feedback is overwhelmingly positive, with approximately 100% of clients praising their collaborative approach, timely delivery, and high-quality results. Notably, 80% of reviewers emphasize the company's attention to detail and exceptional project management skills.
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$1,000+$100 - $149 / hr2 - 9Dhaka, Bangladesh
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See all 3 projectsRANK TRENDS is a web development company specializing in website development and web design. The company has received positive feedback, with 100% of reviewers highlighting their professionalism and impressive communication skills. Clients commend their ability to deliver projects on time, with one reviewer specifically praising their web development via WordPress.
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$5,000+$25 - $49 / hr2 - 9Montevideo, Uruguay
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See all 7 projectsSilver River Software is a web development company specializing in custom website development and full-stack web development. Across their reviews, 100% of clients commend their exceptional project management, proactive problem-solving, and ability to exceed expectations by delivering ahead of schedule without compromising quality. Their collaborative approach and technical expertise make them a highly recommended partner for complex web programming projects.
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$100,000+< $25 / hr50 - 249Sofia, Bulgaria
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See all 10 projectsTechPods JSC is a company specializing in Web Development, offering services that include website and mobile app development, as well as custom microservices. With a strong focus on integrating seamlessly into existing teams, they have received 100% positive feedback for their responsive management and high-quality engineers. Clients highlight their ability to quickly adapt to technical and business needs, ensuring efficient project delivery.
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$1,000+$50 - $99 / hr10 - 49
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See all 4 projectsSimplix Innovations is a web development company specializing in Website Development, Web Design, and Custom Website Development. They consistently receive positive feedback, with 100% of reviews highlighting their professionalism and effective communication. Clients appreciate their ability to deliver projects on time and their commitment to providing high-quality, responsive designs that enhance user engagement and lead generation.
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$5,000+$50 - $99 / hr10 - 49Lisboa, Portugal
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See all 7 projectsTechRivo provides comprehensive services in software and web development, including web design and online development. The overall feedback highlights their attention to detail, professionalism, and effective project management. Clients appreciate their technological expertise and the clear communication maintained throughout the project lifecycle.
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UndisclosedUndisclosed10 - 49
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See all 5 projectsPromogent is a Web Development company specializing in Custom Website Development and Web Design. The company consistently receives positive feedback, with over 90% of reviews highlighting on-time delivery, professionalism, and effective communication. Clients commend their ability to integrate creativity with technical expertise, resulting in responsive and visually appealing websites that boost online visibility and customer engagement.
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$1,000+$25 - $49 / hr2 - 9Sabaneta, Colombia
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See all 4 projectsAlejandro Ramos is a web development company specializing in Website Development, Custom Website Development, and Web Design services. Their reviews highlight a 100% satisfaction rate, with clients applauding their proactive project management, dedication to customer service, and ability to deliver high-quality websites on time. Clients consistently commend their attention to detail and effective communication.
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$1,000+$25 - $49 / hrFreelancerBarcelona, Spain
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See all 2 projectsHable Studios is a design and development company specializing in creating WordPress websites and digital profiles. Reviewers commend their excellent communication and project management, with 100% expressing satisfaction. Many highlight the team's modern aesthetic sensibility and user-friendly approach. A majority of clients mention the smooth execution and timely delivery of their projects.
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List of the Top 15 JavaScript Development Companies
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$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$25,000+$50 - $99 / hr50 - 249Kraków, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$75,000+$100 - $149 / hr50 - 249Vancouver, Canada
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
90% Web Development50% JavaScript10% Other -
$10,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
39.4/40.019.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development60% JavaScript55% Other -
$10,000+< $25 / hr250 - 999Thiruvananthapuram, India
Ability to deliver
37.7/40.018.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Web Development50% JavaScript50% Other -
$10,000+Undisclosed50 - 249San Francisco, CA
Ability to deliver
38.9/40.019.6/20 Reviews9.6/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.3/40.019.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Web Development35% JavaScript50% Other -
$50,000+$100 - $149 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews9.9/10 Clients & Experience10/10 Market PresenceService focus
15% Web Development25% JavaScript85% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.9/40.018/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
70% Web Development50% JavaScript30% Other -
$25,000+$25 - $49 / hr50 - 249Newark, DE
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$10,000+$50 - $99 / hr50 - 249Kuala Lumpur, Malaysia
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development70% JavaScript70% Other -
$5,000+$50 - $99 / hr50 - 249Chicago, IL
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
35% Web Development40% JavaScript65% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Web Development40% JavaScript85% Other -
$50,000+$25 - $49 / hr50 - 249Kharkiv, Ukraine
Ability to deliver
36.8/40.017/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Web Development50% JavaScript55% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
36.8/40.017.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$1,000+< $25 / hr250 - 999Walpole, MA
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Web Development35% JavaScript60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38.8/40.019/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Web Development18% JavaScript79% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.2/40.018.2/20 Reviews10/10 Clients & Experience9/10 Market PresenceService focus
40% Web Development50% JavaScript60% Other -
$25,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development33% JavaScript90% Other -
$10,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development15% JavaScript70% Other -
$10,000+< $25 / hr250 - 999Kolkata, India
Ability to deliver
36.3/40.019/20 Reviews9/10 Clients & Experience8.4/10 Market PresenceService focus
35% Web Development30% JavaScript65% Other -
$5,000+< $25 / hr50 - 249Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
65% Web Development20% JavaScript35% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Plano, TX
Ability to deliver
36.9/40.017.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$50,000+$150 - $199 / hr50 - 249Matlock, England
Ability to deliver
38.2/40.018.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
100% Web Development30% JavaScript -
$1,000+< $25 / hr1,000 - 9,999Los Angeles, CA
Ability to deliver
36.9/40.019.6/20 Reviews9.3/10 Clients & Experience8/10 Market PresenceService focus
20% Web Development25% JavaScript80% Other -
$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
Ability to deliver
37.8/40.018.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Web Development70% JavaScript50% Other -
$50,000+$150 - $199 / hr50 - 249New York, NY
Ability to deliver
35.9/40.016.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Web Development45% JavaScript40% Other -
$50,000+$150 - $199 / hr250 - 999Irvine, CA
Ability to deliver
36.4/40.016.4/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% Web Development30% JavaScript70% Other -
$10,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
37.9/40.018.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Web Development21% JavaScript70% Other -
$100,000+$25 - $49 / hr250 - 999Cebu City, Philippines
Ability to deliver
38.1/40.019.4/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
30% Web Development20% JavaScript70% Other
Top JavaScript Development Agencies
A JavaScript development company designs, builds, and maintains software products that rely on JavaScript across the stack. Teams typically handle front-end interfaces (React, Vue, or Angular), back-end services (Node.js, Express, NestJS), and database integrations. They translate business requirements into clean, maintainable code, implement third-party APIs, optimize performance, and provide ongoing support or feature enhancements. For startups, they may act as a dedicated product team; for enterprises, they often augment in-house engineers to accelerate delivery.
Most agencies bundle multiple offerings so clients can access full product life-cycle support:
- Discovery workshops & technical consulting
- UI/UX design and prototyping
- Front-end SPA or PWA development
- Server-side development with Node.js or Deno
- API design, GraphQL, and microservices architecture
- QA automation & performance testing
- DevOps, CI/CD, and cloud deployment (AWS, Azure, GCP)
- Post-launch maintenance and feature sprints
Some firms specialize in niches such as ecommerce storefronts, real-time dashboards, or IoT applications built with JavaScript frameworks like Next.js or Svelte.
Clutch data shows project budgets range widely:
- MVP or small web app - $15,000–$50,000
- Mid-size product build - $50,000–$200,000
- Enterprise-grade platform - $200,000–$1M+ | Hourly rates usually fall between $50–$149 depending on agency location, seniority, and specialization. Expect higher rates for U.S.-based teams and advanced services like real-time streaming or complex integrations.
- Align expertise: Verify experience with your required stack (e.g., React Native, TypeScript, serverless).
- Review case studies: Look for measurable outcomes—load-time reductions, user growth, or revenue lifts.
- Check communication style: Agile ceremonies, dedicated Slack channels, and transparent ticket tracking are green flags.
- Validate cultural fit: Long-term projects thrive when collaboration styles and time zones mesh.
- Compare total cost of ownership: Factor in maintenance, future scalability, and licensing—not just upfront build fees.
Shortlist 3-5 agencies on Clutch, schedule discovery calls, and request project roadmaps before signing an agreement.
- Guaranteed timelines without discovery
- No access to source code repositories during the engagement
- Outdated tech stacks (e.g., jQuery-only solutions for modern SPAs)
- Low developer retention or high turnover
- Vague pricing models or hidden fees
If an agency dismisses code reviews, ignores testing, or refuses to provide client references, proceed with caution
- Which JavaScript frameworks do you specialize in, and why?
- Can you walk me through a recent project with similar complexity?
- How do you ensure code quality—linting, peer reviews, automated tests?
- What is your approach to scalability and performance optimization?
- How will we communicate and track progress (tools, meeting cadence)?
- Who owns the intellectual property and source code upon project completion?
Clear answers reveal an agency’s maturity, processes, and commitment to delivering long-term value.
A freelancer is ideal for small fixes or short-term enhancements, offering lower overhead and flexible hours. Agencies provide multidisciplinary teams including project managers, UI designers, and QA engineers capable of delivering end-to-end solutions and scaling resources quickly. While agencies cost more, they reduce single-point-of-failure risk and accelerate time-to-market for complex products. How do JavaScript firms measure ROI? Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.
Common KPIs include page-load speed improvements, conversion rate uplifts, reduced infrastructure costs after code optimization, and user engagement metrics (session duration, churn reduction). Firms often set baseline metrics during discovery and provide post-launch analytics dashboards to demonstrate value.