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6 picks · data-backed ranking

Best self-hosted Microsoft alternatives

The best self-hosted replacements for Microsoft products are Nextcloud and ONLYOFFICE for Microsoft 365; Superset and Metabase for Power BI; Gitea and Gogs for GitHub. Nextcloud leads with 37,003 GitHub stars. For each Microsoft product with an appsgit alternatives page, the highest-recommended open-source app on that page (2 per product).

Two open-source replacements each for Microsoft 365, Power BI and GitHub (owned by Microsoft), taken from the top of each alternatives page.

Updated · data from GitHub, refreshed nightly

Top picks

  1. Rank 1:

    Nextcloud

    nextcloud/server

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

    FeaturedFile Sync & StoragePHP

    Replaces Microsoft 365: Nextcloud has 37,003 GitHub stars, uses the AGPL-3.0 license and had 7,289 commits in the last year.

  2. Rank 2:

    ONLYOFFICE

    ONLYOFFICE/DocumentServer

    Office suite that enables you to manage documents, projects, team and customer relations in one place.

    Office SuitesShellDocker

    Replaces Microsoft 365: ONLYOFFICE has 6,970 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 21 commits in the last year.

  3. Rank 3:

    Superset

    apache/superset

    Modern data exploration and visualization platform.

    AnalyticsPython

    Replaces Power BI: Superset has 75,048 GitHub stars, uses the Apache-2.0 license and had 5,509 commits in the last year.

Full ranking

All 6 picks, ranked

Ranked by GitHub stars and recent activity. Open any pick for live stats and licence details.

  1. 1

    Nextcloud

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

    Replaces Microsoft 365: Nextcloud has 37,003 GitHub stars, uses the AGPL-3.0 license and had 7,289 commits in the last year.

  2. 2

    ONLYOFFICE

    Office suite that enables you to manage documents, projects, team and customer relations in one place.

    Replaces Microsoft 365: ONLYOFFICE has 6,970 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 21 commits in the last year.

  3. 3

    Superset

    Modern data exploration and visualization platform.

    Replaces Power BI: Superset has 75,048 GitHub stars, uses the Apache-2.0 license and had 5,509 commits in the last year.

  4. 4

    Metabase

    Easy way for everyone in your company to ask questions and learn from data.

    Replaces Power BI: Metabase has 49,547 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 6,378 commits in the last year.

  5. 5

    Gitea

    Git with a cup of tea! Painless self-hosted all-in-one software development service, including Git hosting, code review, team collaboration, package registry and CI/CD.

    Replaces GitHub: Gitea has 58,319 GitHub stars, uses the MIT license, ships a Docker image and had 1,696 commits in the last year.

  6. 6

    Gogs

    Painless self-hosted Git Service written in Go.

    Replaces GitHub: Gogs has 47,859 GitHub stars, uses the MIT license, ships a Docker image and had 225 commits in the last year.

FAQ

Questions and answers

Still curious? Email info@appsgit.com.

What are the best self-hosted alternatives to Microsoft products?

The best self-hosted replacements for Microsoft products are Nextcloud and ONLYOFFICE for Microsoft 365; Superset and Metabase for Power BI; Gitea and Gogs for GitHub. Nextcloud leads with 37,003 GitHub stars. For each Microsoft product with an appsgit alternatives page, the highest-recommended open-source app on that page (2 per product).

Is Nextcloud free?

Yes. Nextcloud 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, 4 of the 6 picks. ONLYOFFICE, Metabase and Gitea 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 6 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?

Nextcloud, with 7,289 commits in the last 12 months and a latest release, v35.0.1, from September 2026. Activity is a good sign that bugs and security issues get fixed.

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