Code Diff Checker
Compare two versions of code side by side, ignoring indentation changes by default. Free and private: runs in your browser.
Paste the original code, a line with ===, then the new version to see exactly which lines changed.
Runs entirely in your browser. Nothing you paste is uploaded or stored.
Use cases
- Answer a quick question without leaving the browser.
- Debug web and API behaviour faster.
- Share a precise result with a teammate.
Frequently asked questions
Why ignore whitespace in code diffs?
Re-indenting or reformatting makes every line look changed. Ignoring whitespace shows only the logic changes.
Is the Code Diff Checker free?
Yes. It is free with no sign-up, and it runs entirely in your browser, so your input is never uploaded or stored.
Do I need an account?
No. The tool is free, needs no sign-up and runs in your browser.
Related tools
Checking one snippet is a start. Scan your whole repository for free with CodeInspector.