Notes 
LibreOffice consists of programs for word processing, creating and editing of spreadsheets, slideshows, diagrams and drawings, working with databases, and composing mathematical formulae. It is available in 115 languages. Eencrypt documents using OpenPGP public key cryptography or just save with passwords.
Reviewed by Marcus Holmberg
LibreOffice
libreoffice.org 4.8 (8)
Rate LibreOffice: No account needed
Threat level
Covered
A covered pick. Anyone can use it as a private drop-in, with no setup or know-how. Enough for most people. Threat levels
Our take
The default desktop office suite for anyone who wants their documents to stay local files on their own disk, no cloud, no account, no telemetry. The honest trade is the interface feels dated next to commercial suites and the cloud collaboration story is weak, so live co-editing is not its strength. Pick it for offline, private, full-featured document work; look elsewhere if real-time collaboration is the point.
GitHub at a glance
LibreOffice/core GPL-3.0 libreofficetdf
Stars
4,593
+23 this week
Forks
999
101 watching
Last commit
today
healthy
Star history
Commits, last 26 weeks
3,732 commits, active 26 of 26 weeks
167 contributors since Oct 2013
Languages
- C++ 86.5%
- Java 5%
- Python 1.9%
- Other 6.6%
Updated daily from the GitHub API. Star tracking since Jun 10, 2026.
Website at a glance
libreoffice.org
A+ score 115
Strong website security headers
Graded by Mozilla HTTP Observatory, tested 2d ago
Inspect this site yourself
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
LibreOffice alternatives
CryptPad Plenty of features: Rich text, code, presentation, sheet, form, kanban, whiteboard and CryptDrive. Encrypted data is hosted in France but you can also self-host it or select…
PrivMX The complete teamwork experience: Chats & calls, files, tasks, kanban boards, mind maps and calendars. Team members can communicate one-on-one, group chat and section channels.…
Collabora Online Self-hosted online office suite built on LibreOffice, designed to integrate with Nextcloud and ownCloud.
ONLYOFFICE Features: Online document editors, platform for document management, corporate communication, mail and project management tools. Read more: Data Security & Access Control -…
Etherpad Highly customizable open-source online editor providing collaborative editing in real time.
Vikunja The project is still under development and the native apps are not final yet, but the web version works great. Offers an import feature from Todoist, Trello and Microsoft To-Do.
LibreOffice license, in plain English
GPL-3.0 Strong copyleft
Free to use and modify, but anything you distribute that is built on it must also be open under the same license.
Permits
- Commercial use
- Modification
- Distribution
- Patent use
- Private use
Requires
- Disclose source
- Same license
- State changes
- License and copyright notice
Does not provide
- Liability cover
- Warranty
Why it matters: Strong copyleft keeps every distributed version open. A vendor cannot fold this into a closed product and ship it without releasing their changes.
Plain-language summary of the project's license, not legal advice. Read the full text for the exact terms.