About

A studio that moves you forward.
Fast, with care.

ligne8 is an agentic AI and product development studio in Paris. We design interfaces, build products and connect tools, from the first idea to production.

Let's talk about your project

François Mari, founder of ligne8 — François Mari

From consumer products
to business projects.

François Mari founded ligne8 after co-founding Elyze. His background includes around ten mobile apps with more than 4 million combined downloads.

That experience shapes how we work: start with real uses, simplify journeys and put the product in front of real users.

We bring the same care to websites, apps and platforms, as well as AI agents that work with your data and handle your processes.

Product & web AI & automation

In the media

How we work

Short cycles.
Clear checkpoints.

Moving fast requires a clear scope, regular decisions and versions to test. You can see progress and adjust what comes next.

Choose the right scope
Start with your users, tools and constraints to define a useful first version.
Make ideas testable
Show key journeys, interfaces and integrations so decisions can be made before going further.
Build and verify
Develop in iterations, let you test progress and check error cases. For AI, evaluate outputs and permitted actions.
Deliver and hand over
Prepare production deployment, documentation and onboarding. Agree together on follow-up and future improvements.