Text pasted from a word processor or web page often carries invisible baggage - doubled spaces, tabs mixed in with spaces, non-breaking spaces, even zero-width characters that don't render at all. This collapses repeated spaces, trims each line, converts tabs, and strips invisible characters that look identical to a normal space but silently break exact-match comparisons.

When you'd use this

Cleaning up text before feeding it into something that treats whitespace literally - a diff, a search-and-replace, a data import - where an invisible non-breaking space can make two "identical-looking" values fail to match.

Common errors

If a comparison elsewhere is still failing after cleanup, double check the "remove invisible characters" option was actually enabled - plain space-collapsing doesn't touch non-breaking spaces (U+00A0) or zero-width characters, since those aren't regular spaces at all from a text-processing point of view.

Frequently asked questions