diffvoid your secure place to compare texts

Compare text online with privacy-first diffing

diffvoid.com helps you compare two texts side by side, highlight exact differences, and detect invisible Unicode characters that often break code, configs, and copied content. Everything runs in your browser, so your text stays on your device.

About Privacy Terms GitHub

diffvoid

Your secure place to compare texts.

How it works

  1. 1
    PastePaste one text into each panel.
  2. 2
    CompareThe diff appears automatically, line by line.
  3. 3
    CopyTake either side as is, or cleaned of hidden characters.

Reading the diff

hello there Modified changed characters in red
Added or missing an empty gap on the other side
ab Invisible hidden spaces and marks
pаypal Confusable lookalike letters, e.g. Cyrillic

Good to know

  • Copy L/R copies the exact original text. Clean L/R appears when invisible characters are found and copies a normalized version.
  • Drag the divider to resize the panels. Double-click it to reset to 50/50.
  • Private by design. Your text never leaves your device. No uploads, no tracking.
About Privacy Terms GitHub
open source · v2.1.0