The Best JavaScript Developers in Berlin

Looking for a top JavaScript developer in Berlin?

If you're hiring a JavaScript developer to help you build or update a website that's responsive and interactive, consider the pros and cons of JavaScript as a programming language. Advantages include its speed because it's executed on the client-side; reduction in server load; and diverse functionality. Disadvantages to consider include security such as bugs on the client-side.

To assist you in your search for a partner, we’ve compiled this list of the top JavaScript development agencies in Berlin. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.

List of the Best Berlin JavaScript Developers

  • 1

    Squareball Digital

    Founded in 2004, Squareball Digital is a development and design studio with two locations in Berlin and Manchester, U.K. With a team of fewer than 50 individuals, they serve mostly small businesses in the consumer products and services, arts, entertainment, and music, business services, and financial services industries. Their services include web development, web design, and UX/UI design.

    Notable Project

    Squareball Digital developed a website working from existing designs. The team used Kontent CMS, and they also provided SEO services. They were a professional partner who offered flexibility and a unique approach.

    “We’re satisfied with how responsive the site is; it stands up well on mobile and desktop.” – Founder & Managing Director, Digital Marketing Firm

    Former clients
    Yara International ASA
    United Nations
    ILO
    WIPO
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Berlin, Germany
    5.0
    5.0
    7 Clutch reviews
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  • 2

    ELEKS

    Founded in 1991, ELEKS is a provider of custom software development, product design, QA, and technology consultancy services. They offer cooperation models that fit the goals, resources and timelines of Fortune 500 companies, large enterprises, and small businesses. Headquartered in Ukraine, ELEKS has more than 1,600 specialists and 11 offices on three continents to serve their clients globally. 

    Notable Project

    ELEKS developed a new, easy-to-operate front-end system for an industrial manufacturing company's equipment load management (EML) data. They implemented different file handling requirements and designed the interface with 3D object graphical presentation and graphical data handling elements. 

    “The broad scope of work they handled impressed me the most. They also quickly understood the different requirements we had, which came from completely different fields.” -  Principal, Industrial Manufacturing Company

    Former clients
    Aramex
    ESET
    BNY Mellon D&A Solutions
    TAIT
    IXM
    Acino
    Autodesk
    GRTGaz
    PACE, a TXT Company
    $ $ $ $ $
    equalizer $50,000+
    group1,000 - 9,999 Employees
    place Berlin, Germany
    4.8
    4.8
    19 Clutch reviews
    Awards

    IAOP: The Best of The Global Outsourcing 100® , International Business Awards® Bronze Stevie® Winner (2020) , International Business Awards® , Global Sourcing Awards: Finalist (2018)

  • 3

    EdgeCase Technology

    EdgeCase Technology is a service technology company in Berlin. Founded in 2015, they have about 16 employees that serve small and midmarket businesses in the IT, business services, and financial services sectors. EdgeCase Technology provides services for UX/UI design, web development, BI and Big Data Consulting, and web design.

    Notable Project

    EdgeCase Technology built a B2B website to grow the client base for an IT services company. They followed the client's branded color theme and used MODx CMS to develop the site. Deliveries were on time and the entire partnership was a seamless experience. 

    "Everything was easy: the conclusion of the contract, the project phases/sprints, and the surrender." — Team Lead, IT Services Company

    Former clients
    KPMG
    Skobeeff & Partners
    Nokia
    Bosch
    Thomson Reuters
    $ $ $ $ $
    equalizer $10,000+
    group50 - 249 Employees
    place Berlin, Germany
    5.0
    5.0
    5 Clutch reviews
  • 4

    Codete

    Codete is a Berlin based IT consulting and software development company. They were founded in 2010 and have a team of 104 employees who specialize in AI, big data consulting, and mobile app development. They mainly work with mid-market and enterprise clients in the financial services, automotive, and eCommerce industries. 

    Notable Project

    Codete upgraded the website of a study abroad company. They took over development of the client’s site, including a custom CRM and a content management system for schools. The client reports that, after the upgrade, the site loaded 60% faster and their traffic had doubled.

    “The quality of the people that they put on our project was really good, which leads to good communication, high productivity and high output.” – Co-Founder, Study Abroad Company
     

    Former clients
    Wells Fargo
    Gelato Group
    BMW
    $ $ $ $ $
    equalizer $50,000+
    group50 - 249 Employees
    place Berlin, Germany
    4.7
    4.7
    14 Clutch reviews
  • 5

    ValueLogic

    ValueLogic is a software agency founded in 2015 with more than 50 experts. Based in Wrocław, Poland, they provide web, custom software, and mobile app development solutions for clients in the fields of real estate, IT, and financial services.

    Notable Project

    ValueLogic developed a mobile app for a financial services company. The company needed a partner to develop a software solution. ValueLogic developed a working solution with no problems whatsoever.

    “We've had very smooth and productive product development without any issues.” - CEO, Financial Services Company

    Former clients
    ImmobilienScout24
    Tier
    Bremacon
    $ $ $ $ $
    equalizer $10,000+
    group50 - 249 Employees
    place Berlin, Germany
    5.0
    5.0
    2 Clutch reviews
  • 6

    Noorsoft

    Founded in 2015, Noorsoft is headquartered in Moscow, Russia and has two other locations in Berlin, Germany. Their team of 22 employees provides mobile app development and web development services for both midmarket and small businesses.

    Notable Project

    Noorsoft developed a compact MVP for a taxi service app using React and Node.js. The team offered a lot of expertise.

    "It's the best technical team for a start-up with a huge technological expertise." –Founder & CEO, Taxi Service App

    Former clients
    TimeKeeper
    Webstus Publisher
    Sproektiruy.rf
    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place Berlin, Germany
    4.9
    4.9
    8 Clutch reviews
  • 7

    Tinloof

    Tinloof is a full-service web agency based in Berlin. The agency, founded in 2020, has a team of less than ten that provides web development, custom software development, and e-commerce development services to various companies.

    Notable Project

    An AR startup hired Tinloof to develop a complex website. Tinloof worked with the specs they were provided and developed the site using React technology. They completed the website and met the high expectations of the startup.

    "I thought they were great communicators, got work done in half the hours it takes others, and write high quality bug-free code." - Leader, AR Startup

    Former clients
    Sbaï Dentaire
    Illuminem
    $ $ $ $ $
    equalizer $10,000+
    group2 - 9 Employees
    place Berlin, Germany
    5.0
    5.0
    3 Clutch reviews
  • 8

    THE CODEST

    Codest is a software development company that was founded in 2009 and has offices in Krakow and Warsaw, Poland. They have 40 employees specialized in the end-to-end building of custom products, primarily for companies in e-commerce, marketplace, adtech, fintech, proptech and SaaS. Services include backend, frontend and product design.

    Notable Project

    Codest developed the frontend and backend of a web-based tool for booking targeted online ads for a media company. The client found value in their nuanced understanding of industry needs, fluid communication, and high reliability. They enhanced the product using Ruby on Rails and JavaScript, and it has dramatically increased revenue and contributed to business growth.

    “Codest’s work has had a positive effect on our income. The platform makes it easier for our team to sell ads, which has resulted in increased business. It’s also being used by external customers, making it one of our most important products.” – Head of Development, Media Company

    Former clients
    Gazeta Wyborcza
    Helpling
    Kesko Senukai Digital
    Yogobe
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Berlin, Germany
    4.7
    4.7
    11 Clutch reviews
  • 9

    Fantasy Sports Solutions

    Berlin based company, Fantasy Sports Solutions, is an IT solutions company for businesses in the Sports industry. Founded in 2008, their team of 10 work with small businesses providing web development, mobile app development, application testing, and UX/UI design. 

    Notable Project

    A digital marketing and development company partnered with Fantasy Sports Solutions for help launching a beta application for the World Cup. They provided the client with the development and backend support of the app. The project was successful and has over 8,600 users currently.

    They understand a startup’s needs. Sometimes our budget is really tight and we have to push things aside. They were very understanding when it comes to financial struggles for startups. They understand when to push and when to do a discount.“ – Founder, Fantasy Sports Platform

    Former clients
    Picking Duck
    Play Fantasy Sports
    $ $ $ $ $
    equalizer $10,000+
    group250 - 999 Employees
    place berlin, Germany
    4.7
    4.7
    3 Clutch reviews
  • 10

    Voypost

    Voypost is a software agency with a team of fewer than 10 people based in Berlin. Founded in 2019, they offer custom software, web, and mobile app development services for small and medium-sized businesses using ReactJS, NodeJS, and more.

    Notable Project

    Voypost developed a dashboard for a healthcare product. The dashboard was made as a response to a suggestion by one of the product’s customers. The quality was good overall as early as the prototype stage.

    “Changes needed on our end were clearly specified to our engineer. Issues were dealt with rapidly.” - Head of Product, Healthcare Product

    Former clients
    Blindfeed
    Heyou
    $ $ $ $ $
    equalizer $5,000+
    group2 - 9 Employees
    place Berlin, Germany
    5.0
    5.0
    3 Clutch reviews
  • 11

    Sudolabs

    Sudolabs is a software house based in Košice, Slovakia with no more than 50 employees. Since their founding in 2017, they have provided custom software, web, and mobile app development solutions for small and mid-market agencies across various industries.

    Notable Project

    Sudolabs provided full-stack development solutions for a data analytics firm. The firm was understaffed and worked with Sudolabs on various projects. The firm is impressed with Sudolabs’ quality of work.

    “Communication worked well.” - General Manager, Data Analysis Firm

    Former clients
    Panoramic
    ChaChaMatcha
    AgencyVista
    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place Berlin, Germany
    5.0
    5.0
    5 Clutch reviews
  • 12

    Imagine Heroes

    Imagine Heroes is a digital product agency founded in 2019 with over 9 employees. They provide custom software development, web development, and UX/UI design solutions from their office in Wroclaw, Poland. They work with clients ranging from small firms to large companies.

    Notable Project

    Imagine Heroes developed a website for an e-learning provider. The provider hired Imagine Heroes to revamp their website by redesigning and optimizing it for ease of use. The new website allows the provider to better manage their content.

    “The most significant advantage of working with Imagine Heroes was reliability.” - Founder, E-Learning Provider

    Former clients
    BA Academy
    GM Factory
    EAG Investments
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Berlin, Germany
    5.0
    5.0
    4 Clutch reviews
  • 13

    Makers' Den

    Founded in 2018, Makers' Den is a development firm based in Berlin. They have a small team of about six people, and they primarily work with small and medium-sized businesses. 

    Notable Project

    Makers' Den provides ongoing frontend development support for an online classifieds company. Their work has been well-received by the internal team. 

    "Working with them is a lot of fun but also productive." – Global Head of Product, Classifieds Company 

    Former clients
    iHealth Finland
    Healthzilla
    FRI:DAY
    $ $ $ $ $
    equalizer $10,000+
    group2 - 9 Employees
    place Berlin, Germany
    5.0
    5.0
    5 Clutch reviews
  • 14

    Jungsoft

    Jungsoft is a software consulting and development company based in Berlin with an office in Florianópolis, Brazil. The company, founded in 2019, has a team of more than ten that provides web development, mobile app development, IoT development, enterprise app modernization, and other application development services. Jungsoft serves small and larger-sized companies in various industries that include financial services, e-commerce, and business services.

    Notable Project

    A fintech company hired Jungsoft to build the wireframe and complete the development of their appp. Jungsoft worked closely with the company to build the wireframe in Adobe XD and gave regular updates to the company through Monday.com. The project is still ongoing and Jungsoft has been meeting the company's expectations with their work so far.

    "They offer really high-quality customer service and build the projects in a timely manner." - Co-Founder & CEO, Fintech Company

    Former clients
    Rolls Royce
    MiliMatch
    Bosch
    Agilent Technologies
    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place Berlin, Germany
    5.0
    5.0
    2 Clutch reviews
  • 15

    Konig Labs

    Konig Labs is a software development provider founded in 2015 and located in Kaliningrad, Russia. With an additional office in Berlin, Germany, their team of approximately 15 employees specializes in custom software. They also provide web and mobile app development in addition to managed IT services.

    Notable Project

    Konig Labs optimized the existing software solution of a vessel management company. They worked to prevent data loss and implemented a new system logic. Their work buttressed the client's data synchronization and security.  

    "The new system has an improved, more convenient user interface." — Superintendent, Vessel Management Company

    Former clients
    Lepton Media
    Crowd Heroes
    RRC Consulting
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Berlin, Germany
    5.0
    5.0
    7 Clutch reviews
  • 16

    Vrrb Interactive

    Vrrb Interactive is a digital agency based in Los Angeles, with a second office in San Francisco. Founded in 2007, their team consists of around 10 employees. They offer web design, web development, and mobile app development. The primarily serve small and midmarket businesses in the advertising, business, and consumer products industries.

    Notable Project

    Vrrb Interactive collaborated with an e-learning platform on multiple technical processes. They assisted with web design and UI/UX design for their web app, including the early stages of an offering platform, a publishing platform, and analytics. The client has received positive feedback on their work.

    “They were great. They worked quick. That's one of the things we liked about them. They followed through across the board.” – CEO, E-Learning Platform
     

    Former clients
    Tempo
    HomeHero
    Biotene
    ULCA
    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place Berlin, Germany
    4.6
    4.6
    5 Clutch reviews
  • 17

    jut-so

    jut-so is a digital agency collective based in Berlin, with a team of fewer than 50 professionals. Founded in 2018, the company offers their services in web development, branding, and design for clients ranging from small businesses to large firms, with experience working in industries such as advertising, business services, and consumer products.

    Notable Project

    jut-so worked with a branding agency to build a high-quality website for one of the agency's clients. Using WordPress, jut-so developed a website, with both the front and backend of the site worked on. The corporate identity of the site was provided, and jut-so added some design elements that stuck with the theme of the client.

    "The feedback from our client has been gushingly good. For us, that’s amazing. Our input for them has also been excellent. We gave them a specific project with a tight budget, and jut-so has knocked it out of the park. We’ve been super happy." - Founder, Branding Agency

    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Berlin, Germany
    4.9
    4.9
    10 Clutch reviews
  • 18

    agileful

    Founded in 2018, agileful is a development company based in Berlin. They provide web development, mobile app development, and artificial intelligence services to small businesses, and some midmarket clients. Their artificial intelligence work focuses on machine learning and natural language processing. 

    Notable Project

    agileful provided frontend development for a fraud detection web application using React.js. They collaborated well with the in-house development team and remained transparent throughout the project. 

    "We’ve worked with multiple development companies, but agileful has been the best." – CEO, IT Services Company

    Former clients
    ClubCollect
    24metrics
    Jahan Info
    Fleet Spark
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Berlin, Germany
    4.5
    4.5
    5 Clutch reviews
  • 19

    MVP Factory

    MVP Factory is a software development company based in Berlin, Germany, that was established in 2017. Their team of 29 employees provides web development, custom software development, and mobile app development services.

    Notable Project

    MVP Factory developed a mobile app for a food-ordering service. Their team developed the front- and backend of the app for both iOS and Android with prepay functionalities, loyalty programs, and order-scheduling features. The app was a success and garnered a 4.7-star rating, 95% customer satisfaction, 20,000 total users, and 4,000 active monthly users.

    "Thanks to their work, our project is progressing flawlessly. MVP Factory was definitely an excellent source of help as we launched our business." – Co-Founder, Food Ordering App

    Former clients
    Merck
    Verimi
    LabTech
    Voya
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Berlin, Germany
    5.0
    5.0
    2 Clutch reviews
  • 20

    Strowberry Code

    Strowberry Code is an IT company based in Tirane, Albania, with an office in Clifton, N.J. The company, founded in 2015, is a team of less than ten that provides, among others, custom software development, web design and development, SEO, and UX/UI design services to small and midmarket companies.

    Notable Project

    Strowberry Code was hired by a Tourism Nonprofit to do a major redesign of the Nonprofit's website and added a new interactive section. The redesign improved the function of tourism activities that allowed the Nonprofit to generate income to sustain their information drives.

    "Strowberry was happy to work around all of our disorganization, and inability to stick to deadlines." - President, Tourism Nonprofit

    Former clients
    Seci Construction Inc.
    Hotel Fusha e Gjes
    $ $ $ $ $
    equalizer $1,000+
    group2 - 9 Employees
    place Berlin, Germany
    5.0
    5.0
    2 Clutch reviews
  • 21

    control.alt.coop eG

    control.alt.coop is a software development collective based in Berlin. The cooperative, founded in 2018, has a team of less than ten that provides mobile app development, web development, custom software development, e-commerce development, and enterprise app modernization services. control.alt.coop serves small and midmarket companies and institutions in the consumer products & services, education, media, nonprofit, and transportation industries.

    Notable Project

    A mobility think tank hired control.alt.coop to develop an app that automatically detects a user's means of transportation from among nine established options. control.alt.coop worked on the architecture, development, and the updates using Java. They completed the project and the app performed up to the think tank's expectations.

    "The app is very good, and we never had too many problems." - Project Manager, Mobility Think Tank

    Former clients
    Mimi Hearing Technologies GmbH
    Vilua Healthcare GmbH
    TAZ Verlags- und Vertriebs GmbH
    $ $ $ $ $
    equalizer $10,000+
    group2 - 9 Employees
    place Berlin, Germany
    4.8
    4.8
    3 Clutch reviews
  • 22

    DigitalKwarts OÜ

    DigitalKwarts OÜ is a development company based in Tallinn, Estonia founded in 2017. Their team of 3 experts offers web development, e-commerce development, and web design services for small and midmarket firms. They are familiar with WordPress, React Native, NodeJS, and other frameworks, and code using JavaScript, AJAX, and Python, among other languages.

    Notable Project

    DigitalKwarts OÜ made extensive updates to a lifestyle blog. They redeveloped the blog's e-commerce section through end-to-end design and added multiple new features, such as custom widgets and a redesigned home page. The site's traffic and click-through rates have improved significantly after the redesign.

    "My favorite aspect of this engagement was how personal it felt to collaborate with Andrew. It was like working with someone I already knew quite well, even though we've never met. I greatly appreciate that he’s unfailingly honest about what I should and should not do." - Blogger and Founder, Lifestyle Blog

    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Berlin, Germany
    5.0
    5.0
    1 Clutch review
  • 23

    YND

    YND is a software development company that was founded in 2015. They are headquartered in Berlin with offices in Warszawa, Poland and Wrocław, Poland. They are made up of 58 employees and specialize in mobile app development, product design, and AI.

    Notable Project

    YND worked with a automotive agency where they helped fix several bugs associated with their mobile app. The were able to successfully implement new updates for the app and allowed it to run smoothly on both iOS and Android platforms.

    "They do everything from project management to hardware development, which makes them completely reliable. Out of the many mobile development companies I’ve worked with, they are certainly the most experienced developers." – CTO, Automotive Agency

    Former clients
    Wirecard
    AirPlus
    Kayak
    Goomo
    Samsung Next
    $ $ $ $ $
    equalizer $100,000+
    group50 - 249 Employees
    place Berlin, Germany
    4.8
    4.8
    6 Clutch reviews
  • 24

    DevHired

    Founded in 2011, DevHired is a software development firm that offers web development, cybersecurity, and mobile app development services to their small business clients in the e-commerce, business, and consumer products and services industries. Their 50 employees are based out of offices in Mykolayiv, Ukraine and Mittenwalde, Germany.

    Notable Project

    DevHired recently worked on web development for a beauty company. They created a site that pulls data to verify beauty professionals for that client.

    “They're incredibly easy to work with, and they grasp concepts immediately. Beyond just execution, they come up with better ways to make the work happen.” — Founder, Beauty Company

     

    Former clients
    quicksilk.com
    beauticianlist.com
    furniture-leasing.net
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Mittenwalde, Germany
    5.0
    5.0
    3 Clutch reviews
  • 25

    Emerald Solutions

    Emerald Solutions is a development company based in Berlin. Founded in 2018, their team of about seven focuses primarily on small business and midmarket clients. Services include mobile app and web development.

    Notable Project

    Emerald Solutions built an e-commerce shop with a custom configurator with very limited delivery zones and limited stocks per city per country, amongst other projects for an electric scooter startup.

    "Most impressive was the pace of development alongside the quality of deliverable product." – Team Lead, Scooter Startup

    Former clients
    Etergo
    Cangler
    $ $ $ $ $
    equalizer $10,000+
    group2 - 9 Employees
    place Berlin, Germany
    4.5
    4.5
    1 Clutch review
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