# Most actively developed open source self-hosted projects

> The most actively developed open source self-hosted projects are PostHog, Checkmk and Wekan. PostHog leads with 40,156 GitHub stars and 35,167 commits in the last 12 months. Sorted by commits in the last 12 months, the development-activity signal in the GitHub data (not star growth, which the apps snapshot does not track).

## Key facts

| Fact | Value |
|---|---|
| Question | Which open source self-hosted projects are growing the fastest? |
| Picks | 12 |
| Top pick | PostHog (40,156 stars) |
| Data as of | Oct 7, 2026 |
| Canonical URL | https://appsgit.com/best/fastest-growing-open-source-projects |

Growth here means development activity: commits in the last 12 months. It is a better signal of a living project than star counts, which mostly measure past attention.

## Ranked picks

- [PostHog](https://appsgit.com/apps/posthog) (40,156 stars, MIT, Python, AI features): PostHog has 40,156 GitHub stars, uses the MIT license and had 35,167 commits in the last year; it replaces Google Analytics and Metabase Cloud.
- [Checkmk](https://appsgit.com/apps/checkmk) (2,386 stars, GPL-2.0, Python, Docker): Checkmk has 2,386 GitHub stars, uses the GPL-2.0 license, ships a Docker image and had 21,799 commits in the last year; it replaces Datadog.
- [Wekan](https://appsgit.com/apps/wekan) (21,108 stars, MIT, JavaScript): Wekan has 21,108 GitHub stars, uses the MIT license and had 19,700 commits in the last year; it replaces Trello.
- [Agenta](https://appsgit.com/apps/agenta) (4,807 stars, MIT, TypeScript, Docker, AI features): Agenta has 4,807 GitHub stars, uses the MIT license, ships a Docker image and had 18,955 commits in the last year.
- [Home Assistant](https://appsgit.com/apps/home-assistant) (91,266 stars, Apache-2.0, Python, Docker): Home Assistant has 91,266 GitHub stars, uses the Apache-2.0 license, ships a Docker image and had 17,497 commits in the last year; it replaces IFTTT and Nest / SmartThings.
- [TriliumNext Notes](https://appsgit.com/apps/triliumnext-notes) (38,217 stars, AGPL-3.0, TypeScript, Docker): TriliumNext Notes has 38,217 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 16,949 commits in the last year; it replaces Evernote and Obsidian.
- [Ente](https://appsgit.com/apps/ente) (29,252 stars, AGPL-3.0, Dart, Docker): Ente has 29,252 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 16,902 commits in the last year; it replaces Google Photos and Adobe Lightroom.
- [OpenProject](https://appsgit.com/apps/openproject) (16,321 stars, GPL-3.0, Ruby, Docker): OpenProject has 16,321 GitHub stars, uses the GPL-3.0 license, ships a Docker image and had 16,144 commits in the last year; it replaces Jira and Asana.
- [ElasticSearch](https://appsgit.com/apps/elasticsearch) (78,194 stars, AGPL-3.0 / SSPL-1.0 / Elastic-2.0, Java): ElasticSearch has 78,194 GitHub stars, uses the AGPL-3.0, SSPL 1.0 or Elastic License 2.0 (your choice) license and had 13,336 commits in the last year; it replaces Algolia.
- [One Time Secret](https://appsgit.com/apps/one-time-secret) (2,953 stars, MIT, Ruby, Docker): One Time Secret has 2,953 GitHub stars, uses the MIT license, ships a Docker image and had 13,210 commits in the last year.
- [Infisical Community Edition](https://appsgit.com/apps/infisical-community-edition) (29,625 stars, MIT, TypeScript, Docker): Infisical Community Edition has 29,625 GitHub stars, uses the MIT license, ships a Docker image and had 13,051 commits in the last year.
- [Zabbix](https://appsgit.com/apps/zabbix) (6,441 stars, AGPL-3.0, Go Template, Docker): Zabbix has 6,441 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 12,704 commits in the last year; it replaces Datadog and Grafana Cloud.

## How this list was made

- Sorted by commits in the last 12 months, the development-activity signal in the GitHub data (not star growth, which the apps snapshot does not track).
- Only apps with an OSI-approved open-source license.
- Archived projects and projects with no commit in the last two years are left out.

## FAQ

### Is PostHog free?

Yes. PostHog is open-source software released under the MIT license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.

### Can I self-host these apps with Docker?

Yes, 9 of the 12 picks. Checkmk, Agenta and Home Assistant publish Docker images, so you can run them on a VPS or home server with Docker Compose. The others install from their own packages or source; follow each project's install guide.

### Are all of these apps open source?

All 12 apps on this list are open source. You can self-host and modify each one under its license.

### Which of these apps is the most actively developed?

PostHog, with 35,167 commits in the last 12 months and a latest release, desktop-v0.61.621, from October 2026. Activity is a good sign that bugs and security issues get fixed.

## Related questions

- [What are the best new self-hosted apps?](https://appsgit.com/best/newest-self-hosted-apps)
- [What are the best self-hosted apps?](https://appsgit.com/best/self-hosted-apps)
- [What are the best open source AI tools you can self-host?](https://appsgit.com/best/open-source-ai-tools)
- [What are the best apps to run in a homelab?](https://appsgit.com/best/homelab-apps)
- [What are the best self-hosted apps for privacy?](https://appsgit.com/best/privacy-focused-self-hosted-apps)
- [What are the best self-hosted alternatives to Google services?](https://appsgit.com/best/self-hosted-google-alternatives)
- [What are the best self-hosted alternatives to Microsoft products?](https://appsgit.com/best/self-hosted-microsoft-alternatives)
- [What are the best self-hosted apps written in Go?](https://appsgit.com/best/open-source-apps-in-go)

## See also

- [Open-source alternatives to Google Analytics](https://appsgit.com/alternatives/google-analytics)
- [Open-source alternatives to Metabase Cloud](https://appsgit.com/alternatives/metabase-cloud)
- [Open-source alternatives to Datadog](https://appsgit.com/alternatives/datadog)
- [Open-source alternatives to Trello](https://appsgit.com/alternatives/trello)
- [Open-source alternatives to IFTTT](https://appsgit.com/alternatives/ifttt)
- [Open-source alternatives to Nest / SmartThings](https://appsgit.com/alternatives/smartthings)
- [Home Assistant vs openHAB](https://appsgit.com/compare/home-assistant-vs-openhab)
- [Joplin vs TriliumNext Notes](https://appsgit.com/compare/joplin-vs-triliumnext-notes)
- [Immich vs Ente](https://appsgit.com/compare/immich-vs-ente)
- [How to self-host PostHog with Docker Compose](https://appsgit.com/guides/posthog)
- [How to self-host Home Assistant with Docker Compose](https://appsgit.com/guides/home-assistant)

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Canonical page: https://appsgit.com/best/fastest-growing-open-source-projects
Source: appsgit (https://appsgit.com), the app store for github. Data from the GitHub API, refreshed nightly.
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