Diffchecker

I wanted a diff tool that feels at home with code but does not throw away formatting when the input comes from Word, Notion, Confluence, Jira or another rich editor. The comparison runs locally in the browser, so the text stays on the device.

The code and text views focus on the workflow: live comparison, side-by-side or unified output, smart/word/character precision, ignore rules, file loading, replacing either side, and accepting individual changes from the other version. Rich text keeps the pasted HTML presentation while highlighting wording changes, so formatting remains part of the review rather than getting stripped first.