Communication made simple

A place to organize and communicate the easy way.
Open source. Hosted in Europe. Private by design.

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How it works
  • Margin Your organization's home. Your team, your spaces, your conversations — all in one place.
  • Spaces Groups within your margin. A department, a project team, or any subset of your organization.
  • Channels Conversations within a space, organized by topic. Announcements, planning, general — however your team works.
What is Margin?

One place to
organize and communicate

Messages, calls, and team coordination in one app. Built to be understood the first time you open it.

Most tools try to do everything. Margin does less, on purpose. Just the things your team actually uses, every day.

End-to-end encrypted messaging
Voice and video calls
GDPR-native · Hosted in Europe
Roadmap

Where we're headed
and what's already here

Margin is built in the open. Here's what's working, what's next, and where we're going.

Now

Core platform

The foundation is live and in closed beta.

  • End-to-end encrypted private messaging
  • Voice and video calls (P2P & group)
  • Margins, spaces, and channels
  • Desktop app (Windows, Mac, Linux)
  • User and role management
  • Margin-wide announcements for admins
  • Settings and admin tools
Next

Extended core

The features that make Margin a daily driver.

  • File sharing and storage
  • Calendar and meeting scheduling
  • Mobile app (iOS & Android)
  • Various Channel types
  • Mentions and tagging
Later

Scale and extend

Enterprise-ready features and an open ecosystem.

  • SSO and OIDC integration
  • Plugin and integration ecosystem
  • Advanced admin controls
  • Self-hosted deployment guides
Privacy

A space to talk
in peace

Private conversations between two people are end-to-end encrypted — the server relays them but can never read them.

E2E encrypted private messages — only you and the recipient can read them
Hosted on EU servers — GDPR compliant by design
No data sold or shared with third parties
Self-hostable — run it on your own infrastructure
Open source and independently verifiable
👤
You
E2E encrypted
🖥
margin Server
Only relays data, never reads or stores call data
E2E encrypted
👤
Recipient
Private messages between two people
margin
E2E encryption for private messages
Keys never leave your device
EU servers, GDPR native
Provider has zero access to private chats
Others
Server-side encryption only
Host keeps your keys
All messages readable by provider
US servers, Patriot Act exposure
Privacy as a setting, not a default
Open Source

Built with intention,
in the open

Every architectural decision is visible. Read the code, audit the encryption, understand the infrastructure.

Desktop app
Svelte 5 UI framework
Electron Cross-platform desktop framework
Backend
Spring Boot API and business logic
Netty WebSocket server
PostgreSQL Primary database
JWT Authentication
Infrastructure
Hetzner EU-based hosting
Mediasoup Group call routing (SFU)
Docker Compose Deployment and self-hosting

Built in the open

The full source is on Codeberg for you to read and contribute.

View on Codeberg
Closed Beta

Be among the first
to use Margin

We're opening up Margin to a small group of teams who wants an easy-to-use communication tool with privacy in mind. Help us shape the product before public launch.

No credit card required. We'll reach out with next steps.