Diff Checker (Code)

Compare two blocks of code and see the differences highlighted, directly in your browser.

View Ignore leading/trailing whitespace

Original

Modified

Runs entirely in your browser — nothing is sent to a server. Uses a line-based LCS diff algorithm (the same class of algorithm used by most diff tools). Comparison is line-by-line; changes within a line aren't further highlighted word-by-word.

Frequently Asked Questions

A line-based LCS (Longest Common Subsequence) diff, the same class of algorithm used by most diff tools.

No — comparison is line-by-line only; changes within a line aren't further highlighted word-by-word.

Yes — check "Ignore leading/trailing whitespace" to treat lines that only differ by surrounding spaces as identical.