What counts as "whitespace" here?
Spaces, tabs, and line breaks — invisible characters that separate content but carry no visible meaning themselves.
Clean up text by collapsing repeated spaces, collapsing blank lines, and trimming each line — pick which cleanups to apply.
Text is processed locally in the browser. Nothing is uploaded or stored.
Spaces, tabs, and line breaks — invisible characters that separate content but carry no visible meaning themselves.
Yes — that's exactly what Collapse spaces does on its own: it collapses runs of spaces/tabs to one, leaving every line break untouched.
Per line — Trim each line strips leading/trailing whitespace from every line individually, not just the first and last line of the block.
Yes — Collapse blank lines turns any run of 2 or more consecutive line breaks into a single one, which removes blank lines rather than just limiting how many can stack up.
Different sources encode spacing differently (non-breaking spaces, inconsistent tabs) — pasting keeps these invisible artifacts even after formatting is stripped.
No, entirely client-side.