The ChrysoKit Text Diff Checker compares two pieces of text and highlights every difference, line by line, word by word, or character by character. View them unified or side-by-side.
Why use it
Reading two versions and spotting the change by eye is unreliable. A diff makes additions, deletions and changes obvious in colour. Everything runs locally, so private docs stay private.
How to use the Text Diff Checker
- Paste the original text on the left.
- Paste the modified text on the right.
- Pick the granularity: Line, Word or Char.
- Switch between Unified and Split view depending on which is easier to read.
Features worth knowing
Three diff modes
Line for code and config files. Word for prose. Char for catching tiny edits inside a single word.
Unified or split view
Unified inlines the changes for compact reading. Split shows old and new side by side, easier for long edits.
Copy as unified diff
One click copies the diff in unified-format text so you can paste it into a PR comment or a chat.
Pro tips
- Word-level diff is better for prose; line-level diff is better for code and configs; char-level for catching typo-grade edits.
- Strip trailing whitespace before diffing if the result is full of meaningless changes.
- For very large files, line-level diff is faster than word-level.
Privacy first. The Text Diff Checker runs entirely in your browser. Nothing you paste is uploaded.
Bookmark the Text Diff Checker next to the JSON Formatter; the two together cover most "what changed?" debugging.
Open the tool: Text Diff Checker →