Cosmos
Cosmos is a source-available, self-hosted app in the Self-hosting Platforms category, licensed Apache 2.0 with Commons Clause and written mainly in Go. It is a self-hosted alternative to Heroku and ships a Docker image. It has 6,185 GitHub stars and its last commit was on Oct 21, 2026 (data as of Oct 26, 2026).
- Self-hosting Platforms
- Go
- Apache-2.0 + Commons Clause
- Source-available
- Docker
- Active
GitHub stats
- GitHub stars
- 6,185
- Forks
- 253
- Open issues
- 171
- Commits, last 12 months
- 166
- Last commit
- Oct 21, 2026
- Latest release
- v0.23.4Aug 30, 2026
- Created
- Feb 11, 2023
- License
- Apache 2.0 with Commons ClauseSource-available
Data as of from the GitHub API. Report an error
Project health
ActiveActive: last commit Oct 21, 2026, 166 commits in 12 months.
| Last commit | Oct 21, 2026 |
|---|---|
| Commits, last 12 months | 166 |
| Latest release | v0.23.4 (Aug 30, 2026) |
| Releases, last 12 months | 0 |
| Releases, all time | 165 |
| Open issues | 171 |
| Open pull requests | 38 |
| Good first issues | 0 |
| Contributing guide | No |
| Security policy | No |
| Created | Feb 11, 2023 |
Health as of , from the GitHub API. A label describes activity, not quality or security. How we label project health · Report a data error
About Cosmos
Run server applications securely and with built-in privacy features. It acts as a secure gateway to your application, as well as a server manager.
Description adapted from awesome-selfhosted (CC BY-SA 3.0). Source code: github.com/azukaar/Cosmos-Server.
Topics
- authentication
- cloud
- cosmos
- reverse-proxy
- security
- self-hosted
- self-hosting
- selfhosted
- selfhosting
- server
Self-hosted alternative to
Cosmos can replace these commercial products. Compare every option on each page.
Repository preview
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Is Cosmos free and open source?
Not by the OSI definition. Cosmos is source-available rather than open source: its code is public under the Apache 2.0 with Commons Clause, which is not an OSI-approved open-source license. The Commons Clause removes the right to sell the software, including selling hosting or support whose value comes mainly from it. Check the license in the repository before using it commercially.
Can I run Cosmos with Docker?
Yes. Cosmos provides a Docker image, so you can run it on any Linux server with Docker and Docker Compose installed. The project README lists the image name and the environment variables to set.
What are the best alternatives to Cosmos?
Popular self-hosted alternatives to Cosmos include Coolify, Portainer and Dokploy. Cosmos itself is a self-hosted alternative to Heroku.
Is Cosmos actively maintained?
The most recent commit to Cosmos was on Oct 21, 2026 with 166 commits in the past twelve months. The latest release is v0.23.4, published Aug 30, 2026. It had 171 open issues on GitHub. appsgit's project-health label for it is "Active" as of Oct 26, 2026.