Free text hygiene tool

Clean invisible AI marks from text you own.

Paste text from Claude, ChatGPT, Gemini, or another model. You get a clean copy with invisible Unicode removed, unusual spaces normalized, and every change counted.

No account Free to use Open source

Transparent storage

Paste, clean, copy.

Original text0 / 50,000

Clean copy

Where did this text come from?

Advanced normalization

Normalize Latin lookalikesMay change Cyrillic or full-width characters that resemble Latin text.Apply Unicode NFKCUseful for strict text hygiene, but can alter special formatting.

Plain facts

You see exactly what was cleaned.

This tool removes visible-to-machines Unicode carriers and normalizes spacing. It does not rewrite your ideas, claim your text is human-written, or certify that a provider's private detector will fail.

Invisible characters

Zero-width marks, bidirectional controls, tag characters, variation selectors, and other format characters.

Unusual spacing

Non-breaking, thin, full-width, and other space lookalikes are converted to standard spaces.

Honest limits

Statistical token watermarks, file metadata, image marks, and secret provider checks are outside this web tool's scope.

Built openly

Based on published text-hygiene research.

The deterministic cleaning logic is adapted from Guillaume Meyer's MIT-licensed watermarks-remover project. The source, license, and limits stay visible so you can inspect what runs.

View original project