Text Diff
Compare two blocks of text line by line — in your browser.
About Text Diff
A text diff compares two versions of text and highlights the changes between them. Paste an original and a modified block and it shows a line-by-line diff — additions, deletions, and unchanged lines — using longest-common-subsequence matching. Compare configs, code, or drafts privately in your browser.
Frequently asked questions
- Is the comparison line-by-line or word-by-word?
- Line-by-line, which is ideal for code, config files, and structured text where each line is a meaningful unit.
- Is my text uploaded?
- No. The diff is computed locally in your browser; neither block of text is sent to a server.
- How big can the inputs be?
- Inputs are capped per side to keep the comparison fast and responsive in the browser.
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