Text utilities
String Diff
Compare two blocks of text line by line locally in the browser.
Runs locally in your browser
1 added ยท 1 removedLine-based diff, capped at 500 visible rows.
Lumio Utils - Fast tools + Fast browser tools Private by default
How to use this tool
Paste or type your input into the tool panel. Results update immediately where possible. For privacy-first tools, your input is processed locally in the browser and is not stored for analytics.
FAQ
Is this tool free?
Yes. Lumio Utils starts with free browser-based tools and does not require registration.
Do you store my input?
No tool inputs, file contents, passwords, or private generated outputs are stored for analytics.