head to head · open source
LibreOffice vs ZenConverter
LibreOffice has 4,375 GitHub stars, 945 forks, 0 open issues and last shipped yesterday. ZenConverter has 1,403 stars, 48 forks, 3 open issues and last shipped 5 days ago. LibreOffice leads on adoption by 212% (4,375 vs 1,403 stars). LibreOffice is written in C++ under GPL-3.0; ZenConverter is written in Kotlin under AGPL-3.0. LibreOffice has attracted 22% as many forks as stars, ZenConverter 3%. LibreOffice was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| LibreOffice | ZenConverter | |
|---|---|---|
| GitHub stars | ★ 4.4K | ★ 1.4K |
| License | GPL-3.0 | AGPL-3.0 |
| Written in | C++ | Kotlin |
| Last push | 2026-09-18 | 2026-09-14 |
| Forks | ⑂ 945 | ⑂ 48 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick LibreOffice if
- You weight community size — 4.4K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick ZenConverter if
- You want the ZenConverter feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Kotlin
- You evaluated both and ZenConverter fits your workflow better
About LibreOffice
LibreOffice is an integrated office suite written in C++ and distributed under GPL 3.0. It lives in the open source productivity and office suite ecosystem, and it positions itself as an open alternative to Microsoft 365. The Document Foundation backs the project as a community of enterprises, developers, and volunteers.
read the full LibreOffice overview →
About ZenConverter
ZenConverter is a local first file converter for Android, written in Kotlin with Jetpack Compose, for people who want to convert video, audio, and image files on their own phone instead of uploading them to someone else's server.
read the full ZenConverter overview →
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Frequently asked questions
Is LibreOffice or ZenConverter more popular?
LibreOffice has 4,375 GitHub stars and ZenConverter has 1,403. LibreOffice has the larger community by that measure.
Are LibreOffice and ZenConverter free?
Both are open source. LibreOffice is licensed under GPL-3.0 and ZenConverter under AGPL-3.0. Neither carries a licence fee.
What is the difference between LibreOffice and ZenConverter?
LibreOffice is written in C++ and ZenConverter in Kotlin. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, LibreOffice or ZenConverter?
Choose LibreOffice if you want the larger community (4,375 stars) or its GPL-3.0 licence terms. Choose ZenConverter if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.