Atomic Server

A local-first workspace for notes, data and messaging that syncs through a self-hosted AtomicServer, built on the open Atomic Data spec.

1.6k stars, 86 forks TypeScript On GitHub since July 2020

Visit website View on GitHub How to run it

Atomic Server at a glance

Open sourceYes, MITNo paid parts in the repository
Health66 of 100Actively developed
Self-hostingDockerCompose file, 1 service
Interface5 languagesIncluding English, German and French
Issue repliesWithin ~8 hoursMedian first reply; 25% of recent issues answered

What is Atomic Server?

This repository holds atomic.place, a workspace for documents, tables, files, chat, canvases and small apps that works offline in the browser, on desktop and on mobile, and AtomicServer, the self-hostable server for storage, full-text search, sharing and sync. Your identity is a key, data is encrypted on your devices, and every edit is signed. Developers can build their own apps on the same CRDT store and sync protocol, using JavaScript, React, Svelte, Rust or Flutter libraries and a command-line client.

Good fit if

  • You want a Notion-like workspace that keeps working offline and syncs to your own server.
  • You are a developer interested in local-first apps on an open data specification.

Look elsewhere if

Before you adopt it

Atomic Server is MIT-licensed with no paid parts; a hosted service runs at atomic.place. The README marks it as alpha with breaking changes expected before 1.0. A single developer wrote every recent commit. It runs from a Docker image.

Drafted with AI from the project's README and repository data, then checked against that data on 31 October 2026. Report a correction

How to run Atomic Server yourself

Docker
Dockerfile or compose file in the repository
Compose file
docker-compose.yml: 1 service
Setup effort
1 of 5, judged from the compose file
Kubernetes
No Helm chart in the repository
Desktop and mobile
No app builds in GitHub releases
Interface languages
5 languages: Dutch, English, French, German and Spanish

Install instructions: atomicserver.eu or the README on GitHub.

Atomic Server health: is it still maintained?

66 of 100, actively developed

Release rhythmEvery ~2 months3 releases in 12 months; latest v0.40.4
Issue repliesWithin ~8 hoursMedian first reply; 25% of recent issues answered
Bus factorHigh riskOne person wrote all recent commits
  • Activity
    1,018 commits in the last 90 days, the latest on 7 November 2026.
    30 / 30
  • Contributors
    1 person wrote the latest 100 commits; the most active wrote 100% of them.
    2 / 20
  • Releases
    3 releases in the last 12 months; the latest, v0.40.4, on 17 September 2026.
    15 / 20
  • Replies to issues
    Maintainers answered 25% of recent issues, with a median first reply after 8 hours.
    14 / 20
  • Security practices
    No OpenSSF Scorecard for this repository yet, so this part gets a neutral score.
    5 / 10

Read from GitHub on 7 November 2026. How the score works

Atomic Server license: is it open source?

Atomic Server uses MIT, an open-source license approved by the OSI.

  1. July 2020First published on GitHub.
  2. TodayMIT.

Atomic Server for developers

Written in

  • TypeScript 52%
  • Rust 33%
  • Dart 13%
  • JavaScript <1%
  • Shell <1%
  • Other <1%

Getting involved

Contributing guideYesCONTRIBUTING.mdOpen issues520On GitHub
Authors, 90 days1Of the latest 100 commits

Language shares are GitHub’s count of the code in the repository.

Alternatives to Atomic Server

  • Docs (La Suite)Docs is an open-source text editor: web-native, made for real-time collaboration, cleanly structured… 80 health · MIT · 17k stars
  • AFFiNEThere can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings… 76 health · MIT · 74.3k stars
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Questions about Atomic Server

Is Atomic Server open source?

Yes. Atomic Server is published under MIT, an OSI-approved open-source license.

Is Atomic Server still maintained?

Its health score is 66 of 100 (actively developed). It had 1,018 commits in the last 90 days, the latest on 7 November 2026, and its latest release came out on 17 September 2026.

How do I run Atomic Server?

You can run it with Docker. The README on GitHub has the exact steps.

What is Atomic Server written in?

Atomic Server is written mainly in TypeScript (52% of the code), with Rust (33%) and Dart (13%), by GitHub’s count of the repository.

What languages is Atomic Server available in?

The repository has interface translations for 5 languages: Dutch, English, French, German and Spanish.

What are the alternatives to Atomic Server?

Close alternatives in the Notes & knowledge bases category include Docs (La Suite), AFFiNE, MarkText.