Trim, deduplicate, sort, reverse, find, replace, and normalize text.
Text Diff Checker
Compare two texts line by line without uploading either one.
client processing
How to use Text Diff Checker
Enter or choose your values, run the tool, and copy or download the result where available. Reset starts a clean calculation.
Private browser processing
This utility runs in your browser. Toolbox does not send its inputs to the server. Saved state is used only where the tool clearly says so.
Related tools
Count words, characters, sentences, paragraphs, and reading time locally.
Convert text to upper, lower, title, or sentence case locally.
Generate configurable placeholder paragraphs locally.