Terms of Use

Last updated: 31 August 2026

By using TextNinja you agree to these terms. They are meant to be short and fair.

The service is free and provided as is

TextNinja is offered free of charge, with no guarantee of availability or of a particular result. It removes the characters listed on the home page; it cannot know about a character nobody has described yet. Keep your own copy of anything important before you clean it.

What this tool is not for

The cleaner removes invisible characters and nothing else — it does not remove statistical watermarks such as SynthID, because those live in the choice of words rather than in a character you can delete. The rewriter does change your wording, but it is a writing aid, not a way to make AI-written work pass as your own. If you are submitting work somewhere that requires disclosure of AI assistance, neither tool changes that obligation.

Your text is yours

Text you put through the cleaner never reaches us at all. Text you send through the rewriter reaches our server, is rewritten and is then gone — we make no claim to it, keep no copy and have nothing to hand over to anyone else. What you do with the result is your responsibility.

Changes

These terms may change as the tool changes. The date at the top shows the current version.