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.
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+231
STARS · LAST 30 DAYS
8
PER DAY
#93
MOST-STARRED C++
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +56 | +231 | +720 |
| Per day | 8 | 8 | 8 |
| Forks gained | +5 | +20 | +51 |
winmerge gained 231 stars in the last 30 days, about 8 a day, and now has 9.2K. It is about 12 years old and has averaged roughly 770 stars a year. It ranks #93 among C++ repositories and #1,233 across all languages on GitHubRepo.
Trending Record
1
DAYS ON TRENDING
#3739
BEST RANK
Oct 8, 2026
FIRST APPEARANCE
Active
STATUS TODAY
winmerge has maintained a continuous presence across global trending indexes, peaking at #3739. Below is the 30-day activity profile:
💡 Overview
winmerge is an open-source project written in C++: 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.
Engineered for speed, consistency, and developer ease, it solves common hurdles in c-plus-plus, compare-files, csv. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in C++ for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/WinMerge/winmerge.git
cd winmerge⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C++20 compliant compiler (GCC 11+, Clang 13+, MSVC)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
winmerge coordinates its core functionality through a modular C++ pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed winmerge into C++ backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open GPL-2.0 license.
🚀 Getting Started
Install winmerge using your package manager: `git clone https://github.com/WinMerge/winmerge.git`
Initialize your project workspace or configuration file for winmerge.
Import winmerge into your codebase or invoke it directly from your terminal.
Execute your test suite or run `winmerge --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with C++, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
WinMerge/winmerge is currently ranked #1,233 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #1,228 | apache/iceberg | Java | ★ 9.3K | Compare ↗ |
| #1,229 | google/pprof | Go | ★ 9.3K | Compare ↗ |
| #1,230 | RSS-Bridge/rss-bridge | PHP | ★ 9.3K | Compare ↗ |
| #1,231 | pacifio/atlas | Rust | ★ 9.3K | Compare ↗ |
| #1,232 | mikro-orm/mikro-orm | TypeScript | ★ 9.2K | Compare ↗ |
| #1,233 | WinMerge/winmerge This Project | C++ | ★ 9.2K | |
| #1,234 | Finb/Bark | Swift | ★ 9.2K | Compare ↗ |
| #1,235 | Nevcairiel/LAVFilters | C++ | ★ 9.2K | Compare ↗ |
| #1,236 | LibreHardwareMonitor/LibreHardwareMonitor | C# | ★ 9.2K | Compare ↗ |
| #1,237 | phpDocumentor/TypeResolver | PHP | ★ 9.2K | Compare ↗ |
| #1,238 | LearningCircuit/local-deep-research | Python | ★ 9.2K | Compare ↗ |
Frequently Asked Questions
What does winmerge do? +
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.
What language is winmerge written in? +
The primary language is C++. Topics include: c-plus-plus, compare-files, csv, csv-comparison, csv-diff.
Is winmerge actively maintained? +
Yes, the last recorded push was on Oct 8, 2026 with 501 open issues being tracked.
How many stars does winmerge have? +
winmerge has 9,243 stars and 1,015 forks on GitHub.
How does winmerge rank among GitHub repositories? +
With 9,243 stars, WinMerge/winmerge is ranked #1,233 globally across all repositories tracked on GitHubRepo and #93 among C++ projects.
What license is winmerge distributed under? +
The repository reports a GPL-2.0 license. Always verify the repository LICENSE file for legal terms.
