Data formatters
Regex Tester
Test JavaScript regular expressions against sample text locally in the browser.
Runs locally in your browser
Using flags: gi. Showing up to 100 matches.
#1 at 0Lumio
#2 at 35Lumio
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.