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List of Top JavaScript Development Companies | Top JavaScript Developers

  • Codezilla is an impact-driven technology company that creates web and mobile solutions for some of the most exciting start-ups and progressive enterprises globally. We are experts not only in developing beautiful apps but we love getting under the hood to supercharge our client's launch and monetization strategy. W ... read more about Codezilla Technology and Consultancy Pvt Ltd.

    "Very fast, great communication, a great team to work with"
    Charlie Cook
    < $25/hr
    50 - 249
    2017
    India
  • QArea Inc.

    Website/Product Development | CRM | QA ✅CMMI ✅ISO
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    QArea Inc, the European Testing Awards 2016 and 2017 finalist, establishes custom software development and testing services with dedicated team involvement to transform market vulnerabilities into client’s competitive advantages using software force. Implementing innovative web, mobile and desktop apps, proficien ... read more about QArea Inc.

    "Very understanding and diligent."
    Anonymous, VP, Engineering at Location Technology Software Development Firm
    $25 - $49/hr
    250 - 999
    2001
    Malta
  • 🚀 Accelerating Tech Venture Building 🚀 | We fuel Corporates & Startups to success with skin in the game. 🚀 Welcome to Tessafold, your gateway to cutting-edge technology solutions! 🚀 🌐 We are a dynamic duo of agile software development agencies, with Tessafold-DE stationed in Berlin and Tessafol ... read more about Tessafold

    "I like their Know How and Commitment"
    marco Säckl, CEO at Investerceconsulting
    $50 - $99/hr
    10 - 49
    Germany
  • Tekniko Global

    Top Mobile App Developement Company
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    Tekniko Global is an award-winning mobile app development company providing incredible solutions to startups and top well-established companies across the world. Setup in 2017, Tekniko Global is originally a mid-size company with a team of brilliant people who have given the real effort for the development of our succe ... read more about Tekniko Global

    "Best android app development company"
    Sumit Rai
    $25 - $49/hr
    10 - 49
    2017
    India
  • Specno

    Validate,Design&Build World-Class Digital Products
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    Specno - We validate, design and build powerful custom software, and native mobile and web applications that drive business growth and help you achieve your goals. A collaborative approach to innovation development. We are an end-to-end digital solution for small to large businesses.  Problem-Solving Ap ... read more about Specno

    "Specno is there with you from the start"
    Dr Peta Anne Browne, Founder at of Wardworx
    $50 - $99/hr
    50 - 249
    2017
    South Africa
  • Cloud9 Technologies delivers solutions that help Manufacturing organizations to stay lean, agile & competitive for both built-to-order and build-to-stock Operations. Key Statistics-PMTrack ERP by Cloud9 Technologies: Implemented ERP Solution at 85+ Manufacturing Companies: With 110+ locations,1300+ users Suppor ... read more about Cloud9 Technologies

    "best erp software company"
    vaishali waghmode, Digital Marketing Consultant at shinescript
    NA
    10 - 49
    2012
    India
  • JSGuru builds digital products by providing product discovery, UI/UX design and software development services. We have worked with different types of companies, from startups and innovative tech companies to large corporations like T-Systems to craft innovative and groundbreaking software. Industry verticals we spec ... read more about JSGuru

    "The team was able to implement our specifications well and quickly."
    Peer Wierzbitzki, Head of Product at Mailtastic
    $25 - $49/hr
    50 - 249
    2006
    Bosnia and Herzegovina
  • ZonkeTech

    Custom Software Development
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    Established in 2016 ZonkeTech (Pty) Ltd is a Female Owned Software Development and Digital Marketing Company based in South Africa. ZonkeTech offers a unique combination of world-class custom software development and digital marketing services. We seek to enhance the productivity of your business by providing qua ... read more about ZonkeTech

    "Great customer support and invaluable software development expertise "
    Maczwel Zwelakhe Tinise, Managing Director at OS Holdings PTY Ltd
    $25 - $49/hr
    2 - 9
    2016
    South Africa
  • PREFIXA

    Visualizing the future of your design
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    Prefixa is a high-tech company focusing on image processing application development. Specializing in architectural, art, and industry 3D visualizations, we are experts in the photorealistic, Augmented reality, and Virtual reality mediums. Our goal is to create truly unique user experiences and help you build relationsh ... read more about PREFIXA

    "Very skilled and knowledgeable team."
    Steve Martinez, CEO at Complete Probe Solutions
    NA
    10 - 49
    2016
    United States
  • KPS is a reliable team of highly skilled web & mobile experts ready to develop and support your projects: from smallest to the most complex ones. We have long-established relationships with our clients in the Netherlands, Australia, the USA and the UK. We combine the power of UI/UX designers with iOS & Android ... read more about KultProSvet

    $25 - $49/hr
    10 - 49
    2011
    Estonia
  • Codegenix

    Remote that feels like in-house
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    Interested in expanding your team or delegating certain processes to third-party service providers? Meet CodeGenix! We provide quality technical recruiting services and have proven capabilities in outsourcing, transitioning, implementing, and executing processes across different domains.  

    "CodeGenix has been a valuable partner to FFW, they continue to identify talented developers who are hard working team players. "
    Halie Crom, Talent Acquisition and Culture Operations at FFW
    $50 - $99/hr
    50 - 249
    2015
    United States
  • Pace Wisdom Solutions

    Propelling Businesses Using Technology
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      Pace Wisdom Solutions is a deep-tech Product engineering and consulting firm. We have our offices in San Francisco, USA & Bangalore, India. We specialize in designing and developing bespoke software solutions that cater to solving niche business problems. We engage with our clients at different stages: ... read more about Pace Wisdom Solutions

    "Lodestar review of Pacewisdom"
    Murlidhar S
    < $25/hr
    50 - 249
    2011
    India
  • Softlabs Group

    Hire Dedicated Developers Team
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    Softlabs Group is one of the best Software Development Outsourcing Companies in India with an International Market presence of over 21+ years. We offer highly innovative, sustainable, robust, secured, and cost-effective software development and mobility solutions to corporate giants, small enterprises, and start-u ... read more about Softlabs Group

    "Softlabs Group"
    Srikanth A V, Founder & C.E.O at Citadelle Asset Advisors Pvt Ltd
    $25 - $49/hr
    50 - 249
    2003
    India
  • Prismetric

    Delivering Quality Products and Premium Services
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    Prismetric is an ISO 9001:2015 Certified Mobile App Development Company having a development center in India with offices in USA & Saudi Arabia that offer exceptional applications development for iPhone, iPad and Android devices along with other web services to provide end-to-end solutions. We have a strength of ov ... read more about Prismetric

    "They developed restaurant based website and app for us"
    Vivek Singh
    < $25/hr
    50 - 249
    2008
    India
  • Deft Infosystems (P) Ltd

    Website Development , website Designing
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    We're a reputable software development company specializing in offshore software development for Clients all over the India, United Kingdom and the United States. A revelation of young and futurist entrepreneurship – our corporate entity is the solidarity of dynamism and experience.

    "Great Work Experience"
    Rekha Bansal
    < $25/hr
    50 - 249
    2003
    India
  • FutureComes

    Backend & frontend solutions that simply work
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    FutureComes is your visionary partner in digital transformation. As a dynamic technology and design agency, we specialize in crafting cutting-edge software solutions, captivating web designs, and strategic digital experiences that drive businesses forward. We build and design complex, high performance digital soluti ... read more about FutureComes

    $100 - $149/hr
    50 - 249
    2012
    Estonia
  • Ceiba Software

    Great place to work, low turnover, happy dev teams
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    We are an agile custom software development firm with over 750 in house employees based in the US time zone specializing in nearshore software development services such as: Dedicated agile nearshore development teams with project management, UX/UI, and DevOps support to solve your digital challenges. S ... read more about Ceiba Software

    "JES on Ceiba"
    Juan Esteban Saldarriaga, Cofundador at Gulungo.com Pymes sin Límites
    $50 - $99/hr
    250 - 999
    2005
    Colombia
  • Snaps Technologies Limited is an emerging software technology service company. We started operation in 2010. We offer top-class technology services, IT enabled services and BPO services at a competitive price. Our delivery model, customized global delivery model (CGDM), is customer centric. It consolidates core strengt ... read more about Snaps Technology

    "Precise Execution"
    Santosh Mulay, Vice President Business Development at at InSoft Automation Pvt. Ltd.
    $25 - $49/hr
    10 - 49
    2010
    United States
  • We develop tailor-made software solutions for startups and established companies. We combine the finest craftsmanship with innovative design and advise our clients on all digital and business decisions. Our team is hungry for innovation and supports you in all phases of digital product development - from the ... read more about Forwardcode Techstudio

    "Working with Forwardcode Techstudio was a seamless and enjoyable experience."
    Sahib Singh
    $25 - $49/hr
    10 - 49
    2019
    India
  • Smarter.Codes

    We build AI and Conversational Interfaces
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    Our specialty lies in working with AI, Conversational Interfaces, Custom Software Development, Web Development, Ecommerce, & Enterprise Solutions with design led engineering practices. Want to find out how we're the best fit for your project? Reach out to us!   

    "I use Smarter.Codes for everything."
    Joel Marsh, Founder at at Peekerton
    $50 - $99/hr
    10 - 49
    2014
    India
  • CronJ is one of the early adopters of MEAN Stack and almost all our projects are powered by JavaScript. We have been creating quality web applications to their clients, consistently looking for new innovations and ideas to make every application perfect fit for the customers. We help companies to extend their resource ... read more about CronJ IT Technologies Pvt. Ltd.

    "They delivered what they promised."
    Anonymous, Senior Manager at Marine Environment Company
    $25 - $49/hr
    50 - 249
    2012
    India
  • Noetic Systems is an India (Pune) based software development company that focuses on highly qualitative, timely delivered and cost-effective software development. With a rich and varied experience in providing software development and project management capabilities and stringent quality standards ensure us to devel ... read more about NOETIC SYSTEMS

    "Best company for custom software provider"
    Siddharth Mori, Software Engineer at NTT DATA Corporation
    < $25/hr
    10 - 49
    2010
    India
  • Creatoweb

    Creator of your imagination
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    We are Leading Web Design and Software Development Company, In this we guide & support to startups as well an established companies through Our Best Web Design and Software Development Services,Which is the end result of continue rigorous & thoughtful analysis of our IT team. Who continue involve in latest web ... read more about Creatoweb

    "Creato web had efficient staff "
    sumit dadhich, Owner at abhinav bpo pvt ltd.
    < $25/hr
    10 - 49
    2013
    India
  • MarkTeQ IT Solutions specializes in offering unique user centric IT solutions varying from Strategy, Design, Technology, and Marketing. MarkTeQ IT Solutions follows an approach which focuses on integrating Strategy, Design, and Technology & Marketing through specific practice groups, architecting a solution that ... read more about MARKTEQ IT SOLUTIONS LLP

    "Responsive and responsible."
    Kamlesh Joshi , IT Expert at Tradedeal
    < $25/hr
    2 - 9
    2016
    India
  • QSS Technosoft

    Website and Mobile Application Development Company
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    QSS Technosoft (ISO 27001:2013 Certified) & (CMMI Level 3) is an established IT services company having 150+ expert engineers working on enterprise level web and mobile app development. We are providing end-to-end software services which include Application Development, Product Engineering, Managed Services, UI/UX ... read more about QSS Technosoft

    "Great execution on unique designs"
    John Liaw, Program Manager at Dell
    < $25/hr
    50 - 249
    2010
    United States
  • Enosta

    Product Acceleration Company
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    We are a Product Acceleration Company that offers digitalization solutions to accelerate your products. We don't just speed products to market, we help brands unlock their growth potential. We infuse visions with purpose and craft stories that drive action. For us, success means the progress we help create and t ... read more about Enosta

    "Proptech Software Development"
    Hang Do, Business Development Asisstant at Smartos
    $25 - $49/hr
    50 - 249
    2020
    Vietnam
  • Rabiloo

    Top Software Development Company
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    Rabiloo is a provider of IT consulting and software development services such as websites, mobile apps, mobile game development; business performance support system, and management system solutions. We have been collaborating with companies from many countries around the world such as the US, Japan, France, and Singapo ... read more about Rabiloo

    "A good choice for finding a vendor providing solutions for digital transformation"
    Trang Ta, Co-founder and Marketing Manager at 88GO
    < $25/hr
    Freelancer
    1970
    Vietnam
  • Wolfmatrix is formed with the primary motive to serve businesses and startup and to make awesome tech products. Our agency focuses on creating beautiful interactive designs. We build strong collaborative relationship within our team and with our clients, that enables us to implement the solution with best practices ... read more about Wolfmatrix Software Development Company

    "How wolfmatrix helped me for boosting my business?"
    Anup Joshi
    $50 - $99/hr
    10 - 49
    2014
    Australia
  • NA-AT Technologies is a dynamic company driven by innovation and technology. With a dedicated team of experts, we are committed to shaping the future of cutting-edge solutions. Our journey is defined by a passion for excellence and a relentless pursuit of perfection. We pride ourselves on delivering high-quality produc ... read more about NA-AT Technologies

    "IMPRESSIVE PERFORMANCE ON DIGITAL SIGNATURE PRODUCT AS A TOOL FOR IDENTITY THEFT PREVENTION IS LIKE A 2 X 1"
    Sofía Varela, Digital Payments and Innovation Director at Pacific Enterprise Bank
    $25 - $49/hr
    50 - 249
    2005
    Mexico
  • UIPEP Technologies has been in the IT software services industry since 2014 and we are a reliable and affordable Web and Mobile Development company for enterprise and mid-sized organizations.  We are a full-service web and mobile development services provider from India. Our global team of over 4 ... read more about UIPEP Technologies Private Limited

    "Highly skilled team"
    Dr. Kim G. von Arx, CEO, President & Co-Founder at d8amatiks
    < $25/hr
    10 - 49
    2015
    India
  • JS Techno Solutions Pvt. Ltd.

    Creativity is an amalgamation of innovation
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    Jstechno Solutions is a leading IT company that specializes in web, mobile, and software development, including robust ERP and CRM solutions. With a strong focus on innovation, technology, and a client-centric approach, we provide high-quality, customized solutions to meet the unique needs of our clients. Centers of ... read more about JS Techno Solutions Pvt. Ltd.

    "Awesome mobile app development skills"
    PRADIP RAVAL, Owner at VANVET
    < $25/hr
    10 - 49
    2009
    India
  • GFN D'selva Infotech Pvt. Ltd.

    Software ERP Products | Mobile Apps Development
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    D’selva is a software development company headquartered in Agra, with office in New Delhi & Chennai. We develops custom software solutions based on a range of platforms and technologies, including Windows, .Net, J2EE, J2SE, J2ME,php, embedded systems & diversifying as per the market requirements.Develpers ... read more about GFN D'selva Infotech Pvt. Ltd.

    "Full stack development company "
    Ankur Agarwal
    < $25/hr
    50 - 249
    2011
    India
  • Digitexa

    web design, mobile applications, softwares
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    Digitexa, we value your ideas with our expert staff and turn our ideas into software wonders. We design wonderful and offer you excellence.

    "Strictly professionals in their work"
    Az Bucuk
    $25 - $49/hr
    10 - 49
    2017
    Turkey
  • Moon Technolabs Pvt Ltd

    Pioneer in Mobile & Web App Development Services
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    Moon Technolabs is a globally recognized software company with over 14 years of experience, 1550+ successfully completed projects, and a team of 270+ highly skilled professionals. We pride ourselves on our ability to deliver groundbreaking custom software, web, and mobile application development solutions that exceed c ... read more about Moon Technolabs Pvt Ltd

    "Top rated iOS and Mac application development agency - pioneer in mobile app development"
    Emily Smith
    $25 - $49/hr
    250 - 999
    2009
    India
  • Newfire Global Partners

    IT Services & Software Development Company
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    Newfire Global Partners is a custom software development company. Often referred to as “the family of professionals,” Newfire Global Partners rallies around working on hard problems and unlocking business value. We match an organization’s needs with local leaders and trusted remote teams specializi ... read more about Newfire Global Partners

    "Outstanding experience in partnering to create leading edge healthcare software."
    Art Huston, Software Technologist at Zus Health
    $50 - $99/hr
    250 - 999
    2016
    United States
  • We are the digital marketing agency based in the PAK & US offering creative digital and innovative services. Our experienced and dedicated professionals have made us one of the most reliable digital marketing agency specializing in brand building and strategy. We will help accelerate your online growth and get you ... read more about Creative Giants Technologies

    "It was worth a wait we had the best team who took the responsibility and worked really well for us."
    Shanum Sheikh
    $25 - $49/hr
    10 - 49
    2020
    Pakistan
  • DS Solution Vietnam

    Leading Software development outsourcing company
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    DS Solution Vietnam, JSC is a branch company of DS Solution,. INC – an IT services firm based in Japan and APAC. We provide IT consulting and IT outsourcing, offshoring software development services. We help customers to transform IT to next level with latest cloud computing platform, devops tools and best practi ... read more about DS Solution Vietnam

    "IoT & Supply chain management service"
    Paul Dan
    NA
    10 - 49
    2022
    Vietnam
  • At Sankalp, we create innovative and user-friendly mobile apps that put life to your ideas. We believe in agile methodology for developing client-centric mobile apps for personalized and appealing user experience. Operational in any vertical, we serve you with efficient mobile apps loaded with contemporary features and ... read more about Sankalp

    "Good experience "
    kantha Rao
    < $25/hr
    50 - 249
    2001
    India
  • Arvaan Technolab

    Customized solutions to mobile apps & websites
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    Arvaan Technolab is a dynamic and compelling software and web improvement organization. Our vision is to give our worldwide clientele with an unparalleled service through our bespoke Web and Mobile Application Development. We are a full-service interactive agency for some of the most leading brands and emerging star ... read more about Arvaan Technolab

    "Outside of the box"
    Rene Reyes, Founder at Karma the Game of Destiny
    $25 - $49/hr
    50 - 249
    2013
    India
  • SOLUNTECH

    Custom software for forward-thinking organizations
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    Soluntech provides end-to-end software development for companies. We’ve partnered with market leaders to modernize their core technology and create engaging digital experiences. Work with us to become market leader, disrupt business models, and leverage your data for meaningful results.

    "Knack Database solution IT support"
    Matt Carter
    $50 - $99/hr
    10 - 49
    2012
    Colombia
  • TechExtensor PVT LTD

    Extending the technology beyond your imagination!!
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    TechExtensor is a leading **ISO 9001:2015 Certified** Web and Mobile App Development Company based in Ahmadabad, India catering Globally. We excel in industry-focused software development solutions and consulting services across multiple industries. ​Empowered by 14 years of excellence, the company has been delive ... read more about TechExtensor PVT LTD

    "Cloud-based custom software development in .Net + Flutter, hosted in MS Azure"
    Carlos Leal, Co-Founder at Silver Homes
    $25 - $49/hr
    50 - 249
    2015
    India
  • Eton Digital

    We design and develop innovative digital solutions
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    Eton Digital is a digital design and development agency that makes large social networks, enterprise e-commerce applications, knowledge networks, powerful and attractive CMS based websites and exciting iOS and Android mobile applications.  Our agile process covers everything from design, usability, information ... read more about Eton Digital

    "Eton Digital Review"
    Ryan Ala, Digital Product Manager at Procurious
    NA
    50 - 249
    2005
    United Kingdom
  • AppNexus Technology Pvt Ltd Provide Full IT Packages for Website Development , Mobile Apps Development, Digital marketing, MLM Software Development, E-Commerce Website and Mobile apps , Custom Application, CRM, ERP, HRM, Open source software, Digital Marketing 

    "Thanks AppNexus Technology"
    Gyan Jaiswal
    < $25/hr
    2 - 9
    2017
    India
  • Appnovation Technologies is a global IT services firm that delivers innovative and creative open technology solutions. Appnovation is recognized as being a global leader in development using only proven open technology software platforms, including Drupal, MuleSoft, Alfresco, HTML5, MongoDB, Hadoop and more. Appnovatio ... read more about Appnovation Technologies

    "Thank you for supporting our community and the world!"
    Renee Black, Founder & Executive Director at PeaceGeeks
    < $25/hr
    50 - 249
    2007
    Canada
  • OptiSol Business Solutions

    Cloud Web, Mobile, AI & ML, IT Staffing, DataOps
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    A Trusted digital transformation partner of global enterprises with expertise in Native Web and Mobile Applications, AI & ML services hosted on AWS and Azure Cloud, and product implementations. We are a team of about 460+ Agile smart employees with a development center in India and global offices in the US, UK, ... read more about OptiSol Business Solutions

    "SaaS development"
    Phil Lifsey, Founder at ExQual
    < $25/hr
    250 - 999
    2006
    India
  • AE Studio

    Increasing Agency One Product at a Time
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    We're a team of designers, engineers, and data scientists that work with founders and executives to build products, scale teams, and teach Agile, focused towards increasing human agency.

    "Solid Partner"
    Jeffrey Misenti, Co-Founder at The Publisher Desk
    $150 - $199/hr
    10 - 49
    United States
  • Ingenious Lab Sdn Bhd

    Leading Mobile Solution Provider in ASEAN
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    Ingenious Lab is a mobile solution provider based in Malaysia built on an array of creative thinkers, innovators, designers, developers and strategists that allow us to scale for any given project. Our industry focus includes  financial services industry, automotive, and healthcare.

    "Mobile app design and development solutions provider"
    David Choong PMP, Senior Manager, Information Technology Services at Konica Minolta Business Solutions Malaysia
    $25 - $49/hr
    50 - 249
    2010
    Malaysia
  • 1902 Software Development Corporation is a Danish-managed company based in Manila, Philippines. For 22+ years, 1902 has been a technology partner for businesses and individuals across a wide range of industries all over the world. 1902 has extensive experience in working with digital managers and webmasters for desi ... read more about 1902 Software Development Corporation

    "Great experience"
    Nilesh Toke, Asst Manager at Blue Star Ltd
    NA
    50 - 249
    1998
    Philippines
  • WeDigTech

    Android App |iOS App | Ecommerce Web Development
    Visit website

    WeDigTech is a trusted and leading end-to-end design-led digital product development company with its presence in more than 10 countries. With more than 150+ happy customers globally, we have delivered 350+ successful solutions for leading brands and startups in the space of healthcare, energy drinks, media, and entert ... read more about WeDigTech

    "Wedigtech - A Good Team to Partner"
    Ravi Raizada, Director at AquaJoy Water Purification & Treatment
    < $25/hr
    50 - 249
    2008
    India
  • Magic Finserv

    Driving Business Impact from Information
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    Magic FinServ is a leading digital technology services company for the FinTech industry. We bring a rare combination of financial services domain knowledge & new-age technology skills in Blockchain & Artificial Intelligence. We offer end to end services to be your one-stop provider so that our customers focus o ... read more about Magic Finserv

    "Awesome Product"
    Lakshmeesh Goel, Senior Interactive Artist at Magic Software Inc.
    NA
    50 - 249
    2016
    United States
  • LogoChemist

    Where creativity meets Technology
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    LogoChemist is a well known Logo Designing and Video Animation Agency in the United States of America. Our Web Development Services comprises highly passionate and creative developers, marketers, and website designers that blend in all of their expertise for meeting the requirements of the clients and deliver a broad r ... read more about LogoChemist

    "LogoChemist is the best wesbsite ever."
    patrick parker
    NA
    250 - 999
    2019
    United States

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Frequently Asked Questions

What is JavaScript mainly used for?

Although the JavaScript programming language has many applications in the tech world, it is mainly used for web development, web applications, server applications, games and more and, more importantly, to add dynamic functionalities to each of them. 
Further, this multi-purpose language is also used for validation purposes on websites and makes websites more interactive and engaging for the end users.

What services do JavaScript development companies offer?

JavaScript development companies offer services like custom web & mobile app development, mobile apps for Android/ iOS, CMS development, and developing/maintaining databases.

How do JavaScript developers contribute to web development projects?

Well, JavaScript can be used for both front-end and as well as back-end development. As a result, JavaScript developers provide full-stack development as far as web development projects are concerned. 
JavaScript experts fully utilize their knowledge of JavaScript and related technologies to write code for robust web apps.

What are the benefits of outsourcing a JavaScript development company?

Coming straight to the point: The biggest plus of outsourcing projects to JavaScript development companies is that they have a vast talent pool of skilled JavaScript developers - both young and experienced JavaScript developers who can work on your project and deliver it on time.
With years of experience behind them, a JavaScript development company will provide a seamless experience. In addition to their unlimited talent pool, we could guarantee that their services would be much cheaper than onshore and nearshore development companies.
Plus, they are good at using project collaboration tools, which means they’ll keep you updated on every tiny little thing they are up to. And, mind you, they have mastered the queen’s language over the years. This means you’ll have enough clarity on projects and don’t have to read between the lines.

How do I choose the right JavaScript development company?

First, you need to be crystal clear about your project requirements. After you are sure about what your project requirement is, you can start creating a list of probable partners.
Next, you can shortlist five companies who can deliver your project on time and get in touch with them. Get an estimate of project cost and delivery time frame.
Finally, taking everything into consideration, you should finalize your JavaScript development partner.

Can JavaScript experts work on both front-end and back-end development?

Yes, since JavaScript can be used both for front-end as well as back-end development, the majority of experts can work on front-end as well as back-end. This can cut down costs for you!
However, some JavaScript experts may work either on the front end or back end. You can ask the JavaScript Development Agency you have hired whether developers working on the project can work both on the front end and back end.

What is the typical cost and timeline for JavaScript development projects?

Regarding JavaScript development projects, the cost could vary between $1000 to $80,000 depending on the kind of project you want to get done. Why? Because the price of a Simple Website will be different than that of a Web Application. Then there are different types of Web Applications (small, medium, and large) that you can develop using Javascript, but their prices vary as their complexities. Plus, the charge for developing Progressive Web Apps differs from that of Single Page Applications. 

For reference, let's have a look at some numbers.

  • Simple Website Developments - 2 to 6 weeks - $1000 to $5000
  • Small Web Applications - 4 to 10 weeks - $5,000 to $20,000
  • Average-sized Applications - 8 to 16 weeks - $20,000 to $50,000
  • Sizeable, Bigger Applications - 16+ weeks - $50,000 to 100, 000 
  • Progressive Web Applications- 4 to 12 weeks - $10,000 to $50,000
  • Single Page Applications - 8 to 20 weeks - $20,000 to $80,000

How can I review the past projects and portfolios of a JavaScript development company on GoodFirms?

GoodFirms provides you with a list of top JavaScript development companies along with ratings and reviews by past clients. You also get info about their hourly rates, number of employees, year of establishment, and location.

For this, you have to visit the webpage of top JavaScript development companies on Goodfirms. 
GoodFirms directory also provides a Leader’s Matrix of firms based on specializations, portfolios, awards, certifications, and client reviews.