Paste two versions of Rust code, or drop .rs files, to see every change highlighted. Use it to review a change to a module, compare two versions of Cargo.toml, or check a refactor before opening a pull request. Diffspot highlights Rust syntax, marks changed words inside each line and recognizes moved blocks. Press Try an example to see it on a real Rust change.
How to compare Rust files
- Paste or drop the original Rust code on the left.
- Paste or drop the changed version on the right. The diff updates as you type.
- Jump between changes with F7 and Shift+F7, or switch to Unified view to read it like a pull request.
- Copy or export a unified diff, a .patch file or an HTML report.
Rust comparison tips
- Comparing RustLifetimes, macros, attributes and raw strings are highlighted, so a changed
#[derive]or lifetime stands out. - Cut the noiseFor Cargo.toml, the TOML diff compares dependencies by name regardless of order.
- Your code stays privateThe comparison runs on your device in WebAssembly. Proprietary code is never uploaded or stored.
- Fast on large filesFiles with hundreds of thousands of lines compare in about a second.
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Frequently asked questions
Is Rust detected automatically?
Yes. Diffspot recognizes Rust from the file name (.rs) or from the code itself. You can also choose it in the Syntax menu.
Is my code uploaded?
No. The page loads the diff engine once; after that your code stays in the browser tab. How Diffspot works explains how you can check this yourself.
Can I get a patch file?
Yes. Export → Download .patch creates a standard unified diff that git apply or patch can apply.