The Best FOSS Alternatives to Popular Proprietary Software
Switching to free software no longer means sacrificing quality. For almost every mainstream proprietary tool there is a mature FOSS counterpart, often maintained for decades by a dedicated community. The table below lists the replacements we recommend most often.
| Proprietary software | FOSS alternative | Notes |
|---|---|---|
| Microsoft Office | LibreOffice | Full office suite, opens and saves DOCX/XLSX |
| Adobe Photoshop | GIMP | Raster graphics editing |
| Adobe Illustrator | Inkscape | Vector graphics |
| Adobe Lightroom | Darktable | RAW photo processing |
| Microsoft Outlook | Thunderbird | Email, calendars, address book |
| Google Drive / Dropbox | Nextcloud | Self-hosted files, calendar, contacts |
| Signal | Private messaging | |
| 1Password / LastPass | KeePassXC | Local password vault |
| Windows / macOS | Linux Mint, Ubuntu, Fedora | Complete desktop operating systems |
| Windows Media Player | VLC, MPV | Plays virtually any format |
Start with the easy wins. Firefox, VLC, and Thunderbird install on Windows and macOS exactly like any other program, so you can try them without changing your habits or your system.
Expect small differences, not sacrifices. Keyboard shortcuts and file formats may differ slightly from what you are used to. LibreOffice, for example, handles Microsoft formats well, but complex documents occasionally need a formatting touch-up. These are switching costs, not missing features — they disappear once you settle in.
Move gradually. There is no need to switch everything at once. Replace one tool, live with it for a week, then replace the next. Most people start with the browser, then media, then email, and only after that consider a full operating system like Linux Mint or Ubuntu.