windiff

Name: windiff Review
Item: windiff
Rating: 2.5
Author: Aaron Matthews

Skill Development Usable

Works inClaude Code

Usable Scanned — metadata only

Tracking Windows API and syscall changes across OS versions is critical for binary compatibility, vulnerability analysis, and reverse engineering—windiff aut…

Tool that allows comparing symbol, type and syscall information of Microsoft Windows binaries across different versions of the OS, using a Web UI and/or LLMs.

Analyze API changes between Windows versions to plan binary compatibility updates.
Generate migration reports showing which syscalls changed across OS releases.
Ask Claude to explain symbol differences in Windows binaries between versions.

390 starsGPL-3.0 (check with legal)FreeQuick setup

Usable rating — This tool is functional but has notable gaps. Review the evaluation notes below before deploying.

Why it matters

Tracking Windows API and syscall changes across OS versions is critical for binary compatibility, vulnerability analysis, and reverse engineering—windiff automates this discovery, reducing manual research time and improving accuracy for teams supporting multiple Windows targets.

Best for

Security researchers and binary analysis teams comparing Windows OS compatibility and syscall changes across versions.

Works in

Claude Code Claude Cowork Claude Chat

Source

https://github.com/ergrelet/windiff

By ergrelet

How to Get It

Option 1: Claude Desktop App (Code Mode)Click the + button next to the prompt box → Plugins → Add plugin. Search and click Install. Skills work in Claude Code only.

Option 2: Paste into Claude CodeCopy the command below and paste it into your conversation. Claude will install it.

Command

claude plugins install ergrelet/windiff

Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.

Auto-generated from the tool's public listing — not hands-on verified. Cross-check against the source repo's README before running.

First thing to try

After installing, paste this into Claude:

Help me analyze API changes between Windows versions to plan binary compatibility updates

CostFree

Trust Signals Auto-scanned

Stars390Last updated2026-08-23LicenseGPL-3.0 (check with legal)Known CVEsNone foundSources: GitHub Advisory Database + OSV.dev · Scanned 2026-08-23 · scanner v1

Community Pulse New

No community discussions found yet. This doesn't mean the tool isn't good — it may be new or serve a niche use case.

Reviewer notes

Auto-scanned review. These are observations, not a security certification.

Scored from trust signals (evidence-eval-v1): 390 GitHub stars; contributors unknown; last commit 0d ago; license GPL-3.0.

Things to check

Scanned, not hands-on tested — this entry was auto-scanned from public metadata (GitHub metrics, license, security flags). No reviewer has run it, and no tool-specific limitations have been documented yet.
License (GPL-3.0) may restrict commercial use. Check with your legal team.

How to evaluate tools before deploying →

Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.

Evaluation Scores

Evaluation

Ease of Use

1/5

Versatility

4/5

Reliability

3/5

Security

3/5

Overall score2.55 / 5.00 UsableEvaluatedAug 2026

Scored from trust signals (evidence-eval-v1): 390 GitHub stars; contributors unknown; last commit 0d ago; license GPL-3.0.

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