Patch File Inspector

How to use this developer tool

1. Paste the patch or diff text or load a local text file.
2. Adjust the available checks or parsing options.
3. Select Inspect Patch or press Ctrl/Cmd + Enter.
4. Review the summary, detailed output, and structured export before using the result.

What this developer tool does

Inspect a Git patch without applying it. The analyzer summarizes changed paths, hunk ranges, added and deleted lines, file modes, renames, binary notices, and email-style patch headers. Its output is meant for review and triage, not for changing the working tree.

The parser does not verify that a patch will apply cleanly against a particular repository or base commit.

Example

The bundled sample demonstrates the expected input. Select Sample, run the analyzer, and compare the detailed output with the summary metrics.

diff --git a/app.js b/app.js
index 1111111..2222222 100644
--- a/app.js
+++ b/app.js
@@ -1,2 +1,2 @@
-const limit = 10;
+const limit = 20;
 console.log(limit);

Use cases

• Pre-commit and code-review checks
• Query or repository troubleshooting
• Generating copy-ready diagnostics for an issue

Tips for reliable output

• Use the exact text that the target system will receive.
• Keep dialect- or policy-specific options aligned with your project.
• Review warnings even when the main result is valid.
• Save structured JSON when another script needs the findings.
• Confirm destructive operations in the real environment separately.

Processing details

Parses diff headers and unified hunks while excluding metadata lines from addition and deletion totals.

The parser does not verify that a patch will apply cleanly against a particular repository or base commit.