What We Do
Web & Mobile Development

We build the apps that you imagine, from design to code, tests, and deployment. Our focus is on delivering projects rapidly to allow for frequent iterations and incorporate feedback from users. We apply professional web development best practices and deliver secure, fast, robust, and maintainable applications.

Our development stack, which includes React.js, Svelte, Node.js, APIs, PostgreSQL, and TypeScript, seamlessly supports incremental development, from prototyping to large software architectures.

Our primary objective is to create value throughout the development process, prioritizing the development of products over programs.

What We Do
React-admin, the best B2B framework

Since 2016, we edit and support React-admin, an open-source, low-code developer tool that accelerates the development of admins, dashboards, and B2B apps. Very popular, it powers 3,000 new websites every month.

React-admin also comes as an Enterprise Edition with additional modules, professional support, and more. This solution has already convinced more than 450 companies around the world, enough to make the open-source famework sustainable.

What We Do
Carbon Footprint Calculator

We built GreenFrame, a SaaS solution that measures the CO2 emissions of any web application, regardless of its client and server technology. By allowing to detect and fix "Carbon Leaks", GreenFrame helps developers improve their practices to make them more sustainable.

GreenFrame is also an essential tool for companies with a CSR ambition, as it is the only service that measures "scope 3" emissions of software - the emissions coming from the usage of the service.

GreenFrame is the proof of our commitment to fight climate change through digital innovation.

Make the world a better place using digital innovation

No air conditioning

We don't use air conditioning. We chose an office with natural air cooling instead.

We are makers

We build innovative digital products for corporate companies & startups

We love to share our knowledge, to find the best tool for the job in a pragmatic way, and to work together as a team. We’re small, so everyone is important.

Our offices
Join us!

What We Do

1859 Cloud: Responsive App, API & Admin

A FinTech like no others, 1859 Cloud wanted to build a private club of investors sharing investment ideas for the greater good. We've used Lean Startup and JavaScript to make that possible.

Our happy customers

Let's work together on your next project!