WinMerge/winmerge
WinMerge is an Open Source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle. observed · 2026-08-28
Health v2 · maintenance only
94/100
- Activity 99
- Release rhythm 83
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 45.5
- age_days: 4313
- days_rel: 37
- days_push: 7
- n_releases_24m: 15
Adoption not part of the score
9150 stars · 1008 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
WinMerge is an open-source visual differencing and merging tool for Windows that compares files and folders side by side. It supports text, image, and CSV/TSV table comparisons, 3-way merges, patch creation, and Windows Explorer shell integration.
Use cases
- compare two versions of a source file line by line
- merge changes between file versions
- find which files differ between two folders
- compare CSV or TSV files as tables
- visually compare two images and highlight differences
- generate patch files in unified diff format
- compare files inside archives without extracting
When to choose
- you need a free GUI diff/merge tool on Windows
- you want Explorer context-menu integration for quick comparisons
- you need 3-way file or folder comparison for version control conflicts
- you compare images or tabular CSV data as well as text
When to avoid
- you need diff tools on Linux or macOS
- you need command-line-only or scriptable diffing in CI pipelines
- you need git-native merge workflows
Facets
application · maturity stable
gui editor developer-tools file-system csv developer-tools files windows windows diff merge file-comparison folder-comparison image-diff shell-integration patch-files three-way-merge desktop
3 sources
- readme: https://github.com/WinMerge/winmerge · fetched 2026-08-28 · 7cdd400deee0
- homepage: https://winmerge.org/ · fetched 2026-08-29 · 7fad0fae1177
- site_page: https://winmerge.org/docs?lang=en · fetched 2026-08-29 · 96b7a724d11a
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| WinMerge/winmerge | main | 94 |
For agents
markdown · JSON · MCP: product_card(name="WinMerge/winmerge")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem