AI Text Checker

Find AI-like style signals (repetition, transitions, hedging, structure) and hidden copy/paste characters that cause subtle mismatches. No score. No rewriting.

Note: style heuristics are English-centric right now. Non-English text may produce false positives. (Hidden character detection works for any language.)
This tool does not guarantee bypassing any detector and does not remove a universal “AI watermark”. It surfaces style signals and copy/paste integrity issues you can actually fix.
style signals found
invisible/control chars
typography variants
input chars
words

Paste text

Run the check to see signals and examples. Shortcut: Ctrl/Cmd+Enter.

Tone / genre hint
Adjusts thresholds to reduce false positives.
Advanced
[ZW]/[BIDI]/[BOM]/[NBSP] = invisible/control (green). [TYPO] = typography variants (smart quotes/dashes/ellipsis, amber). Style phrases are highlighted in yellow.

Report

Grouped by risk. Each item includes what to change.

Preview

Hidden markers (green/amber) show where odd characters occur. Style highlights (yellow) show where signal phrases appear.

Copy/paste cleanup

Optional: generate a cleaned output you can copy. This removes technical breakers — it does not rewrite meaning.
Useful for pasted CLI/JSON blocks from Windows editors.
chars (incl) chars (no ws) words ctrl typo Δ —
Cleaned output (raw). Copy always copies raw output (no markers).
Minimal removes invisibles/control + weird spaces + soft hyphen. Strict additionally normalizes smart quotes/dashes/ellipsis.

What this checker does (and what it doesn’t)

Many “AI detection” systems don’t rely on a single removable watermark. In practice, they often look for a mixture of stylistic patterns (repetition, overuse of connectors, uniform structure) and copy/paste artifacts (hidden Unicode characters, non-breaking spaces, smart quotes) that make text behave differently than it looks.

This page is a clarity & integrity audit. It does not produce a detection score and it does not rewrite your content. It highlights fixable issues, and the cleanup output can remove known technical breakers while keeping wording intact.

Common problems it helps you catch

Note: style heuristics are currently English-centric. Hidden character detection works across languages.

FAQ

Does this remove an AI watermark or bypass detectors?

No. There is no universal removable AI watermark. This tool reports style signals and copy/paste integrity issues so you can fix what’s genuinely fixable.

What are “hidden characters”?

Characters like zero-width marks, bidi controls, joiners, BOM, and non-standard spaces. They can break parsing, tokens, and exact matches even when the text looks normal.

Why does the report sometimes look off for Ukrainian or other languages?

The style checks rely on English tokenization and English phrase lists. For non-English text, treat style signals as a weak hint, not a verdict. The copy/paste (hidden character) checks remain reliable.

What’s the difference between Minimal and Strict cleanup?

Minimal removes invisible/control characters, converts weird spaces to normal spaces, and removes soft hyphen. Strict also normalizes smart quotes, dashes, and ellipsis, and can normalize line endings to LF and trim trailing spaces.

Will cleanup change meaning?

It should not. Cleanup targets technical breakers, not wording. If you paste code/commands, Strict is recommended. If you paste prose and you care about typography, Minimal may be safer.

Related tools & guides

Useful one-page tools and guides from ClearExplained — built to prevent costly mistakes in subscriptions and payments.

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More tools will be added over time — this section keeps related workflows one click away.

References & further reading

ClearExplained — simple pages that reduce mistakes.