LaSuite.

The office and collaboration suite for the French public administration

Lasuite - Tchap
Lasuite

A complete productivity suite for public service.

LaSuite is a unified collaboration platform built for public employees, based on open source software. It brings together essential office tools such as chat, video meetings, webinars, document editing, file storage, spreadsheets and an integrated AI assistant.

A series of open source components - including Docs , Fichier , Grist , and Tchap - form the foundation of LaSuite. Tchap, a fork of Element, is the real-time messaging component of LaSuite and fully integrated with the other tools to streamline work across the public sector.

Tchap

Tchap, the secure instant messaging part of LaSuite, is based on Element and relies on the Matrix open standard for collaboration within the public sector administration. It supports end-to-end encrypted messaging, secure calls, video meetings, screen sharing, and file exchange.

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Used by more than 600,000 public employees, it is integrated with a directory that makes it easy to find colleagues by name or professional email. Approved external partners can also be invited into specific discussions.

Each ministry runs its own server, forming a huge private federated network hosted on France’s sovereign cloud, with secure border gateways ensuring controlled communications with approved external partners.

Element offers the French public administration digital sovereignty: 

  • Decentralised for ownership and resilience
  • Open standard based
  • Open source for transparency
  • Powerful federation for communication between separate organisations
  • Secure by design
Read the case study

Tchap at Matrix conference 2025.

Watch DINUM’s presentation to see how Tchap is advancing secure, interoperable communication across ministries and public agencies.

Sovereign by design.

LaSuite is developed by the Interministerial Directorate for Digital Affairs (DINUM), which implements France’s digital strategy for the public sector. Its mission is to unite public professionals around a coherent set of interconnected, open source applications designed to streamline everyday collaboration and productivity.

An alternative to proprietary productivity suites.

Unlike proprietary office suites, LaSuite is built from the ground up to meet public sector requirements. It gives the French administration autonomy over its infrastructure and technology stack, benefits from the transparency of open source software, protects against vendor lock-in by using the Matrix open standard, and keeps all data within France’s sovereign cloud.

Building Digital Commons.

LaSuite is more than a productivity suite - it is a platform for building digital commons with European partners. Its infrastructure and open source components are shared and reused across multiple use cases and countries to build innovative, sovereign and scalable solutions that strengthen interoperability and public sector resilience.

LaSuite can federate with Germany’s openDesk, while the Netherlands is combining both platforms to create its own sovereign workspace, MijnBureau. All three use the open Matrix standard for secure, real time communication. LaSuite could also connect with Sweden’s SAFOS or other suites, enabling sovereign cross-border collaboration across European public administrations.

Other European collaboration suites for digital sovereignty.

Germany’s Federal Ministry of the Interior and ZenDiS provide openDesk, a sovereign office and collaboration suite for German public sector organisations.

Like LaSuite, it combines multiple open source office applications, with Element powering chat and real time communication.

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Sweden’s social insurance agency provides a sovereign and secure collaboration service called SAFOS for parts of Försäkringskassan and several government agencies to replace Skype and MS Teams.

Element is used to deliver the messaging and video calling component for ‘SAFOS Chatt’.

Be in your element.

Want to integrate Element as part of your national suite?