There are plenty of free text cleaners. Most flatten your formatting or send your text to a server. Here is how to pick a good one, and what a strong free cleaner should do.
What a good AI text cleaner should do
- Strip invisible characters. Zero-width spaces, the byte-order mark, non-breaking spaces, and direction marks that paste in from AI tools.
- Handle AI punctuation. Em and en dashes, smart quotes, and the ellipsis glyph.
- Fix spacing. Collapse double spaces and runaway blank lines, trim trailing whitespace.
- Keep your structure. Headings, bullet and numbered lists, blockquotes, and code should survive. This is the feature most tools get wrong.
- Show what it removed. A count of each character type builds trust and confirms the job is done.
The features that actually matter
Structure-aware cleaning. Many free cleaners run blunt rules that collapse your lists into a wall of text. A structure-aware tool reads the text line by line and leaves your formatting intact while removing the noise.
Local, in-browser processing. For anything sensitive, this is the big one. A tool that processes in your browser never uploads your text. You can verify it by disconnecting from the network and cleaning anyway. Tools that send your text to a server are a privacy risk for confidential content.
No signup, no limits. A genuinely free cleaner should not require an account or cap how much you can clean.
Where textscrubr fits
textscrubr is a free, in-browser AI text cleaner. It strips invisible characters, em dashes, smart quotes, and double spaces, keeps your bullets, headings, and code exactly where you put them, and shows you a count of everything it removed. Nothing is uploaded, there is no account, and it works on as much text as you paste.
Beyond the browser
If you want to clean text inside your own workflow, some cleaners also ship as a script or an assistant skill you can run locally or inside Claude and ChatGPT. That is useful when you clean text constantly and want it where you already work.
How to choose
Match the tool to the job. For everyday cleaning, a free in-browser cleaner that keeps your formatting is all you need. For confidential text, insist on local processing. For repeated bulk work, look for a script or offline option.