We all love open-source software, but there are so many amazing projects out there that often go unnoticed. Let’s change that! Share your favorite open-source software that you think more people should know about. Here’s how you can contribute:
- Single Option Per Comment: Mention one open-source software per comment to be able to easily find the most popular software.
- No Duplicates: Avoid duplicating software that has already been mentioned to ensure a wide variety of options.
- Upvote What You Love: If you see a software that you also appreciate, upvote it to help others discover it more easily.
Check out last year’s post for more inspiration: Last Year’s Post
Let’s create a comprehensive list of open-source software that everyone should know about!
librewolf a privacy-focused fork of the latest stable firefox (win,linux,mac)
VLC (VideoLAN media player): play media files, DVDs, network streams and more. Just works,
Markor is a handy fast Android note taking app with Markdown and todo.txt support.
Since everything it creates are text files, it pairs well with various file syncing apps recommend in this thread.
Inkscape - the best vector graphics program out there. So easy to use, and so powerful.
screen
a gnu until that let’s you run a persistent session, even if you log off. log back in and reattach your screen and whatever you were doing is still running.
Thunderbird - a brilliant e-mail program, which also handles contacts, newsfeeds, calender and more. It’s available for multiple platforms, like Android, Windows, Linux and so forth…
LibreOffice - simply the best office suite there is (IMHO). I was a MS-office user for years, but since I switched, I haven’t looked back…
tmux: A terminal multiplexer that enables managing multiple terminal sessions within a single window, allowing detaching and reattaching sessions to keep programs running in the background.
and lastly, Tor Browser: anonymous web browser to evade state censorship and surveillance
OsmAnd, mobile app for navigation and maps. Offline, based on OSM, can do anything. I use it for checking out and bookmarking places, finding POIs and pubic transport stations, routing (especially for bike and foot), measuring distances, and so on. It can also show and record tracks, do car navigation, edit OSM points, and more stuff that I don’t use. Pro/plus/full version free on FDroid
This post is a gold mine!
Newpipe, an YouTube client, which is:
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ad free
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lightweight
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useful, it allows downloading videos, music, and playing them when screen is locked
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usable without account
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multi-platform, it can also serve as client for the PeerTube, Bandcamp, SoundCloud
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Lichess: A popular free, open-source online chess platform offering play, puzzles, and tournaments.
Syncthing: Continuous, private, and encrypted file synchronization across multiple devices without using the cloud.
KeePassXC: A modern, secure, open-source password manager that stores and manages sensitive information offline.







