Fidus Writer vs LanguageTool server
A side-by-side comparison of two self-hosted office suites options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Fidus Writer
an online collaborative editor for academics
VS
LanguageTool server
Multilingual grammar, style, and spell checker (API)
| Feature | Fidus Writer | LanguageTool server |
|---|---|---|
| Category | Office Suites | Office Suites |
| License | GPL-3.0-only | LGPL-2.1-only |
| Language | JavaScript | Java |
| Setup difficulty | Medium | Easy |
| Min. RAM | 50 MB | 800 MB |
| Deployment | bare-metal | bare-metal |
| GitHub stars | ★ 565 | ★ 14,775 |
| First released | 2026 | 2023 |
| Replaces | Overleaf | — |
Why pick each one
Choose Fidus Writer if…
- Released under the GPL-3.0-only license
- Written in JavaScript
- Tiny footprint — runs in 50 MB RAM
Choose LanguageTool server if…
- Released under the LGPL-2.1-only license
- Easy to set up — beginner-friendly
- Mature project with 14.8k GitHub stars
- Written in Java
Frequently asked questions
Is Fidus Writer or LanguageTool server better?
LanguageTool server is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Fidus Writer if its specific feature set fits your needs better.
Are Fidus Writer and LanguageTool server free and open-source?
Yes. Fidus Writer is licensed under GPL-3.0-only and LanguageTool server under LGPL-2.1-only. Both can be self-hosted at no software cost.
Can I run Fidus Writer and LanguageTool server with Docker?
Fidus Writer: check the project docs for container support. LanguageTool server: check the project docs for container support.