A few times a week I find myself turning to diff checker websites to compare snippets of text or JSON, but I've always found their UIs clunky or unnecessarily complicated. I set out to build a simpler option with a pleasing UI.
Features that mattered to me:
- Client-side only diff that never leaves the browser
- Clear indicator when text is identical
- Text input preserved in localstorage so it persists between refreshes
- Ability to show only changed lines for comparing larger files
- Auto JSON formatting to test for equivalence (pretty print + object key sort)
- Drag-and-drop text files directly into the input fields
Features that mattered to me:
- Client-side only diff that never leaves the browser
- Clear indicator when text is identical
- Text input preserved in localstorage so it persists between refreshes
- Ability to show only changed lines for comparing larger files
- Auto JSON formatting to test for equivalence (pretty print + object key sort)
- Drag-and-drop text files directly into the input fields
- Dark mode