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Diff two blobs without dropping them into a random SaaS

Left vs right (or unified). Line-level highlight for configs, emails, and code snippets.

chars: 80
Left
Right
Output

When to use

Config drift, copy edits, or a quick PR check before git.

Examples

Input
left: line one / line two
right: line one / line 2
Output
Highlights the changed middle line

How it works

Line split → LCS/Myers-style diff → render. Optional ignore-whitespace.

Common pitfalls

  • Word-wrap and ignore-space change what counts as a change.
  • Binary files don’t belong here.
  • Huge files may lag in-browser.

How this differs

Two-document compare. Regex Tester finds patterns in one text. JSON tools don’t diff trees unless you paste both sides.

FAQ

Binary files?
Text only.
Huge files?
Soft limits for UI responsiveness.
Word-level diff?
Line-first; word-level optional.
Uploaded?
No.

Related tools

Runs in your browser. Nothing is uploaded. Not a security product —hashes and JWT decode are for debugging, not password storage or auth advice.