Source Code
WinMerge is Open Source software under the GNU General Public License.
This means everybody can download the source code and improve and modify it. The only thing we ask is that people submit their improvements and modifications back to us so that all WinMerge users may benefit.
GNU General Public License
WinMerge is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
WinMerge is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with WinMerge. If not, see <http://www.gnu.org/licenses/>.
Clone or download
The source code is hosted on GitHub in a Git repository:
https://github.com/winmerge/winmerge.git
You can also download the current branches as ZIP file:
| Download | Branch |
|---|---|
| master.zip | Master |
Recent Commits 
- Update ChangeLog 2026-09-28 08:03
- Fix blank line handling in comment difference filtering (#3651) 2026-09-28 06:54
- Update Manual\French.po (#3648) 2026-09-27 19:54
- Update ChangeLog 2026-09-27 05:51
- Ensure undo groups are flushed when DeleteText2 fails 2026-09-26 19:26
- Update French.po 2026-09-26 18:40
- Fix undo after swapping panes (#3647) 2026-09-26 18:37
- Show the selection margin when adding a bookmark 2026-09-26 08:19
- Avoid dangling iterator in undo target tracking (#3646) 2026-09-26 06:07
- Rebuild toolbar buttons based on active window (#3631) (2) 2026-09-26 04:07
- View all commits…