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11 picks · data-backed ranking

Best self-hosted Google alternatives

The best self-hosted replacements for Google services are Immich for Google Photos, Syncthing for Google Drive and PostHog for Google Analytics. Immich leads with 117,454 GitHub stars.

For each Google product with an appsgit alternatives page, the highest-recommended open-source app on that page (one per product).

One open-source replacement per Google product, taken from the top of each alternatives page.

Updated · data from GitHub, refreshed daily

Top picks

  1. Rank 1:

    Immich

    immich-app/immich

    Photo and video backup solution directly from your mobile phone (alternative to Google Photos).

    Active · last commit Oct 28, 2026

    FeaturedPhoto GalleriesTypeScriptDocker

    Stands out for the most GitHub stars. Replaces Google Photos: Immich has 117,454 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 2,902 commits in the last year.

  2. Rank 2:

    Syncthing

    syncthing/syncthing

    Syncthing is an open source peer-to-peer file synchronisation tool.

    Active · last commit Oct 28, 2026

    File Sync & StorageGoDocker

    Stands out for an appsgit step-by-step deploy guide. Replaces Google Drive: Syncthing has 89,827 GitHub stars, uses the MPL-2.0 license, ships a Docker image and had 244 commits in the last year.

  3. Rank 3:

    PostHog

    PostHog/posthog

    Product analytics, session recording, feature flagging and a/b testing that you can self-host (alternative to Mixpanel, Amplitude, Heap, HotJar, Optimizely).

    Active · last commit Oct 28, 2026

    AnalyticsPython

    AI-nativeStands out for the most commits in the last 12 months (41,124). Replaces Google Analytics: PostHog has 40,486 GitHub stars, uses the MIT license and had 41,124 commits in the last year.

At a glance

Self-hosted Google alternatives compared

For each Google product, the first open-source app on its appsgit alternatives page (actively developed apps first, then by GitHub stars).

Top 10 picks compared, data as of Oct 28, 2026
AppStands out forLicenseGitHub starsCommits (12 mo)Last commitDocker image
Immichthe most GitHub starsAGPL-3.0117,4542,902Oct 28, 2026Yes
Syncthingan appsgit step-by-step deploy guideMPL-2.089,827244Oct 28, 2026Yes
PostHogthe most commits in the last 12 months (41,124)MIT40,48641,124Oct 28, 2026No
Nextcloudits PHP codebaseAGPL-3.037,3218,046Oct 28, 2026No
Radicalethe longest track record (since 2011)GPL-3.05,1511,658Oct 27, 2026No
Formbricks–AGPL-3.013,1761,615Oct 28, 2026Yes
Memos–MIT64,1351,007Oct 27, 2026Yes
Jitsi Meet–Apache-2.030,158926Oct 28, 2026Yes
Home Assistant–Apache-2.091,78821,554Oct 28, 2026Yes
docker-mailserver–MIT19,698119Oct 26, 2026Yes

Full ranking

All 11 picks, ranked

For each Google product, the first open-source app on its appsgit alternatives page (actively developed apps first, then by GitHub stars).

  1. 1

    Immich

    Photo and video backup solution directly from your mobile phone (alternative to Google Photos).

    Stands out for the most GitHub stars. Replaces Google Photos: Immich has 117,454 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 2,902 commits in the last year.

  2. 2

    Syncthing

    Syncthing is an open source peer-to-peer file synchronisation tool.

    Stands out for an appsgit step-by-step deploy guide. Replaces Google Drive: Syncthing has 89,827 GitHub stars, uses the MPL-2.0 license, ships a Docker image and had 244 commits in the last year.

  3. 3

    PostHog

    Product analytics, session recording, feature flagging and a/b testing that you can self-host (alternative to Mixpanel, Amplitude, Heap, HotJar, Optimizely).

    AI-nativeStands out for the most commits in the last 12 months (41,124). Replaces Google Analytics: PostHog has 40,486 GitHub stars, uses the MIT license and had 41,124 commits in the last year.

  4. 4

    Nextcloud

    Access and share your files, calendars, contacts, mail and more from any device, on your terms.

    Stands out for its PHP codebase. Replaces Google Docs: Nextcloud has 37,321 GitHub stars, uses the AGPL-3.0 license and had 8,046 commits in the last year.

  5. 5

    Radicale

    Simple calendar and contact server with extremely low administrative overhead.

    Stands out for the longest track record (since 2011). Replaces Google Calendar: Radicale has 5,151 GitHub stars, uses the GPL-3.0 license and had 1,658 commits in the last year.

  6. 6

    Formbricks

    Experience Management Suite built on the largest open source survey stack worldwide. Gracefully gather feedback at every step of the customer journey to know what your customers need.

    Replaces Google Forms: Formbricks has 13,176 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 1,615 commits in the last year.

  7. 7

    Memos

    Knowledge base that works with a SQLite db file.

    Replaces Google Keep: Memos has 64,135 GitHub stars, uses the MIT license, ships a Docker image and had 1,007 commits in the last year.

  8. 8

    Jitsi Meet

    WebRTC application that uses Jitsi Videobridge to provide high quality, scalable video conferences.

    Replaces Google Meet: Jitsi Meet has 30,158 GitHub stars, uses the Apache-2.0 license, ships a Docker image and had 926 commits in the last year.

  9. 9

    Home Assistant

    Home automation platform.

    Replaces Google Home: Home Assistant has 91,788 GitHub stars, uses the Apache-2.0 license, ships a Docker image and had 21,554 commits in the last year.

  10. 10

    docker-mailserver

    Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only configuration files, no SQL database.

    Replaces Gmail: docker-mailserver has 19,698 GitHub stars, uses the MIT license, ships a Docker image and had 119 commits in the last year.

  11. 11

    Mailcow

    Mail server suite based on Dovecot, Postfix and other open source software, that provides a modern Web UI for administration.

    Replaces Google Workspace: Mailcow has 13,712 GitHub stars, uses the GPL-3.0 license, ships a Docker image and had 353 commits in the last year.

FAQ

Questions and answers

Still curious? Email info@appsgit.com.

Is Immich free?

Yes. Immich is open-source software released under the AGPL-3.0 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, 8 of the 11 picks. Immich, Syncthing and Formbricks 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 11 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 41,124 commits in the last 12 months and a latest release, desktop-v0.61.859, from October 2026. Activity is a good sign that bugs and security issues get fixed.

How is this list ranked?

For each Google product, the first open-source app on its appsgit alternatives page (actively developed apps first, then by GitHub stars).

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