Free · Browser-Based · Side by Side · Ignore Rules

Text Diff Checker

Compare two text blocks side by side, ignore case or whitespace noise, and review changed lines in a clear copy-friendly summary.

Original Text

Modified Text

Ignore trimmed whitespace Ignore case Ignore blank lines

Diff Summary

🎯 Common Use Cases

Review config changes quickly

Compare copied snippets before deploy

Hide trivial case or whitespace differences

Share a clean changed-lines summary

What makes this stronger than a basic compare box?

It supports side-by-side input, ignore rules, changed-only mode, and a clearer line-by-line summary.

Can I ignore blank lines?

Yes. Blank lines, case-only changes, and trimmed whitespace changes can be filtered separately.

Does it produce a patch file?

Not yet. This version focuses on a fast readable summary for review and debugging.