TTULAKITO
Developer

Text Diff Checker

Compare two text blocks line by line and spot changes.

All tools

Original

Changed

Diff

  JSON formatter
- Base64 encoder
+ JWT decoder
  URL encoder

Frequently asked questions

What's the difference between a line diff and a character diff?
A line diff treats each newline-separated row as the smallest unit, which is fast and matches how code reviews work. A character or word diff highlights changes inside a single line and is better for prose or short strings.
Why do diffs show whole lines as changed when only one word moved?
Most diff algorithms compare line by line, so any edit on a line marks that line as removed and a new one inserted. Use an inline or word-level view when you need to see the specific tokens that differ.
Will trailing whitespace and line endings affect the diff?
Yes - a stray space at end of line or a CRLF versus LF mismatch will register as a real change. Normalize line endings or enable a whitespace-ignoring mode if you only care about content differences.