Paste two versions of Shell code, or drop .sh, .bash, .zsh and dotfiles like .bashrc files, to see every change highlighted. Use it to compare two versions of a script or dotfile. Diffspot highlights Shell syntax, marks changed words inside each line and recognizes moved blocks. Press Try an example to see it on a real Shell change.
How to compare Shell files
- Paste or drop the original Shell 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.
Shell comparison tips
- Comparing ShellComparing dotfiles between machines? Mask out paths with your user name using a custom pattern under Ignore.
- 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 Shell detected automatically?
Yes. Diffspot recognizes Shell from the file name (.sh, .bash, .zsh and dotfiles like .bashrc) 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.