Text diff tool

Paste two blocks of text and see the line-by-line differences.

Original

Changed

Ignore whitespace Ignore case

Up to 20,000 lines or 400,000 characters a side.

Scriptable: POST /api/diff with {"left": "…", "right": "…"} returns the same comparison as JSON. Health: /healthz.

text-diff-tool-paste-two-blocks-of-text v1.0.0 — nothing you paste is stored or logged.