# Cosmos

> Cosmos is a source-available app you can self-host in the self-hosting platforms category. 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. It has 6,176 GitHub stars, is source-available under the Apache 2.0 with Commons Clause (not an OSI-approved open-source license) and ships a Docker image. It is a self-hosted alternative to Heroku.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/azukaar/Cosmos-Server |
| Website | https://cosmos-cloud.io/ |
| GitHub stars | 6,176 |
| Forks | 249 |
| Open issues | 166 |
| License | Apache 2.0 with Commons Clause |
| License type | Source-available |
| License file | https://github.com/azukaar/Cosmos-Server/blob/master/LICENCE |
| Language | Go |
| Docker image | Yes |
| Platforms | Docker, Go |
| Categories | Self-hosting Platforms |
| Commits, last 12 months | 158 |
| Last commit | Oct 5, 2026 |
| Latest release | v0.23.4 (Aug 30, 2026) |
| Created | Feb 11, 2023 |
| Maintenance | Actively maintained |
| Archived | No |

Topics: authentication, cloud, cosmos, reverse-proxy, security, self-hosted, self-hosting, selfhosted, selfhosting, server

## Install

Cosmos ships a Docker image; follow the README at https://github.com/azukaar/Cosmos-Server for the image name and environment variables.

Need it installed for you? [appsgit installation help](https://appsgit.com/services/install): a fixed quote by email, single app installs from $79.

## Cosmos replaces

- [Heroku alternatives](https://appsgit.com/alternatives/heroku): A platform-as-a-service for deploying and scaling apps from Git.

## Similar apps in Self-hosting Platforms

- [Coolify](https://appsgit.com/apps/coolify): Self-hostable Heroku, Netlify and Vercel alternative that deploys apps, databases and services to your servers. (62,628 stars, Apache-2.0, PHP, Docker)
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- [Dokku](https://appsgit.com/apps/dokku): Docker-powered mini-Heroku that builds and deploys apps with a git push. (32,169 stars, MIT, Go, Docker)
- [Rancher](https://appsgit.com/apps/rancher): Multi-cluster Kubernetes management platform. (25,957 stars, Apache-2.0, Go, Docker)
- [Dockge](https://appsgit.com/apps/dockge): Fancy, easy-to-use manager for Docker compose stacks from the creator of Uptime Kuma. (24,552 stars, MIT, TypeScript, Docker)

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