Clean text: remove extra spaces and hidden characters

Why text gets dirty when you copy it

Text that looks perfectly normal on screen often carries things you cannot see. Copying from a web page brings non-breaking spaces that are not the ordinary space your keyboard produces. Text taken from a PDF arrives chopped into short lines that ignore your page width. Content pasted from Word or from an AI chat can include zero-width characters, invisible marks that occupy no space but still count as characters.

The problems hidden characters cause

They are the reason a form rejects a value that looks correct, why a search-and-replace finds nothing, why two identical-looking names do not match in a spreadsheet, and why a script fails on a line that seems fine. The character count is another giveaway: if a text looks 40 characters long but a counter says 43, something invisible is in there.

What each option does

• Invisible characters removes zero-width spaces, byte-order marks, soft hyphens and directional marks. Zero-width joiners inside compound emoji are kept, so emoji such as families or flags do not break.
• Odd spaces → normal turns non-breaking and typographic spaces into a plain space.
• Trim and collapse removes spaces at the start and end of each line and reduces runs of spaces to one.
• Join lines of a paragraph repairs text broken by page width, which is typical of PDFs, and can rejoin words split by a hyphen at the end of a line.
• Curly quotes & dashes → plain is useful for code, CSV files and systems that only accept plain ASCII punctuation.

Know what was changed

Below the result you see a count for each kind of change. That is useful on its own: if it reports 12 invisible characters, you have found the reason your text was misbehaving. Everything runs in your browser, so pasting an internal document or a contract is safe.