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Diff Checker

Compare two text blocks side by side.

+2 added−1 removed=3 unchanged
 apple
+blueberry
−banana
 cherry
 date
+elderberry

About

Paste two versions of any text and get a side-by-side or inline diff with insertions and deletions highlighted. Useful for comparing config files, manuscripts, or anything where 'what changed' isn't obvious.

How to use

  1. Paste 'before' text on the left.
  2. Paste 'after' text on the right.
  3. Toggle inline / split view. Diffs are computed live.

FAQ

How does the diff work?+

It's a line-level Myers-style diff (the algorithm git uses). It finds the shortest edit distance, then renders each line as unchanged, inserted, or deleted.