codemix really shone through - our team learned so much. Your spirit and tenacity was ultimately critical to our successful deployment.
— Brad Sands (COO, Amplifier)
we are codemix, the javascript experts.
we help teams large and small build very high quality applications with JS. Frontend, Server, Mobile, IoT.
What We Do
Expert-level JavaScript Consulting
We tackle hard problems with JS, no matter what your platform or tech stack, our experts can help.
Boost Your Development Team
Scale your development team on-demand. We work closely with our clients to deliver features, fix bugs, ship projects faster and radically boost team productivity.
React & React Native Development
A transformative technology for UI development, find out how codemix can help your company succeed with React.

Enterprise Scale Apps with Node.js
We deployed our first production node app way back in 2011, our team of experts help you build high performance, mission critical platforms with node.js.
Open Source Development
codemix are huge proponents of Open Source Software and contribute as much of our work under permissive licences as possible. Click here to see our latest projects.
News & Articles
Stronger JavaScript with Opaque Types
How opaque types in Flow and TypeScript can make your code better, faster, more secure and easier to refactor.
An interview with Charles Pick
codemix founder Charles Pick talks with Juho from SurviveJS about the future of static types in JavaScript.
An Ode to Flow Runtime
Gajus Kuizinas explains why he uses flow-runtime in all his open source projects.
Introducing Flow Runtime
Patrick Stapfer does a great job explaining flow-runtime in this talk at React Vienna
Remote Work Works
Why working remotely makes us a happier, more productive, more successful team.
Why Babel Matters
Why Babel is different from other compile-to-JS systems like CoffeeScript and TypeScript, and how it's going to become the driving force for innovation in JavaScript.
Follow us on twitter for JavaScript news and updates on our projects: @codemixers
Our Partners
Our partners like working with us because we deliver results quickly, we focus on excellence and make their teams even more productive. We're fun and easy to work with but we bring a level of energy and focus that's truly infectious. codemix goes above and beyond to help make sure your project is a spectacular success. Here are some of the companies we work with:










Testimonials
You’d be hard pressed to find a development team which combines top notch programming skills with such genuine, heartfelt care and honesty. All the while somehow managing to completely leave out the ego, to me that’s the definition of true elite!
— Samir Bekaert (Founder, MyHotelCard)
Why codemix?
We're a small but fast growing team of expert software developers and designers who specialize in JavaScript.
As the leading JS consultancy in the North of England, we work with companies large and small to ship web and mobile applications, train development teams and conquer deep technical challenges.
We love open source and release us much of our work as possible under permissive licenses. We spend a lot of our time thinking about how to make JavaScript better and pushing the ecosystem forward.
Our core values are Speed, Integrity and Pragmatism. We take pride in delivering high quality but cost-effective solutions tailored to your unique business requirements.
To find out how codemix can help you get more out of JavaScript, Contact Us