Free online text comparison / diff checker. Paste two texts and highlight added, removed, and changed lines. Runs 100% in the browser—nothing is uploaded. Line/word/character diff, side-by-side & inline views, ignore case/whitespace, merge like git, export PDF/spreadsheet/PNG. No signup, no ads.

Compare text, documents, spreadsheets, code, data formats and images directly in your browser. TextCompare highlights additions, deletions and edits at line, word or character level, with side-by-side and inline views, smart preprocessing, Git-style merging and PDF, CSV, PNG or HTML exports. Everything runs locally—files and text are never uploaded. Free, no sign-up, no installation, and it keeps working offline after the page loads.