Why mask instead of delete?
A visible mask preserves the structure of a message. The reader can still see that an email address or IP existed without receiving the complete identifier.
Choose the right strength
Light keeps more context, Balanced obscures the centre of each detected value, and Full replaces every letter or number. Always review the result before sharing it.
What the cleaner detects
UCLLL recognises common email and IPv4 formats. It can also mask URLs, supported API keys, wallet addresses and custom names or project terms.
No text upload
Detection and masking happen in the current browser tab. Your source text is not sent to UCLLL’s server.