French AI detector & writing-pattern checker

French AI detector

What the French AI detector does

This app checks French text for the patterns typical of AI-generated French writing: guillemet spacing, apostrophe style, the space before ; : ! ?, and the handful of connectors a model reaches for far more than a person does. It's built for the exact question people search, is this French text AI-written, and answers with a labelled list of signals instead of a bare score.

It runs as a server tool: your text goes to our AI server to be scored, and the flags come back explained. You get 5 free checks in any rolling 24 hours, no account needed.

The real tells

How AI-written French text actually gives itself away

French typography carries its own rules, and following or ignoring them is informative either way. None of these mean anything alone; the app reads for how many show up together.

Guillemets missing their narrow space

Correct French typesetting is « texte » with a narrow no-break space after « and before ». Straight quotes, or guillemets pressed tight against the text, both stand out.

No space before ; : ! ?

French convention places a space before these marks: « Bonjour ! Comment allez-vous ? ». Punctuation glued the English way, with no space, reads as typed without French rules applied.

A straight apostrophe throughout

Correct elision uses U+2019, l’ami, aujourd’hui, not the ASCII apostrophe '. A document perfectly consistent one way, never a mix, is itself worth noticing.

En effet and par ailleurs overused

Both are correct connectors. Reached for as a default way to open every new point, they read as filler rather than argument.

Formal connectors stacked in sequence

De plus, par conséquent, en outre, arriving one after another rather than because the logic actually calls for them.

Workflow

How to run the French AI detector on your own text in three steps

Nothing to configure, no format to match.

1. Paste your French text

A draft, a submission, a comment. A paragraph gives the check enough structure to read.

2. Run the check

The text goes to our AI server once, gets scored, and the flagged patterns come back to the page.

3. Read the flags, not just a score

Each signal ships with a plain-language reason. Use that to decide what the result means for your text.

Straight answer

Can you actually tell which AI wrote French text?

Not for certain. Most models default to the same tidy, connector-heavy French regardless of which one wrote it, often skipping the narrow-space typography a French program would apply automatically, so this app reads for machine-written French broadly, not for a single model.

Ask the same model for Québécois phrasing, or for a specific register, and much of that default shape disappears. Treat a match as worth a closer look, not as a finished answer.

Why flags happen

Why French writers get flagged by mistake

French has solid training data overall, but formal and administrative French sits unusually close to what this app is built to notice, and it's worth saying so rather than treating the tells as neutral.

Administrative French

Il convient de noter que, il est à noter que: the style administratif already leans on the same hedges and connectors for reasons that predate AI by a century.

Machine-translated French

Text translated from English by a tool like DeepL tends to be grammatically correct but stiff, missing the narrow-space typography native writing usually carries.

Careful non-native learners

En effet, par ailleurs and de plus are exactly what French courses teach as connective structure, so a learner following the lesson closely writes the same shape a model defaults to.

If it happens to you

What to do if your French writing gets wrongly flagged

A flag here is a signal, not a verdict, and copy-paste between systems routinely strips the exact typography this app looks for.

Keep every draft

Earlier versions are the clearest evidence a piece was built, not generated whole.

Check what your editor did to your apostrophes

Many tools silently convert U+2019 to a straight apostrophe on paste, turning a genuine signal into a false one.

Ask exactly what was flagged

A named pattern, a connector or a spacing habit, is something you can discuss. A bare score isn't.

Who it's for

Who uses the French AI detector, and what the free limit is

Editorial teams screening French submissions, teachers weighing in on unusually polished essays, and writers checking their own drafts before sending them out.

5 free checks in any rolling 24 hours, no account required. The window rolls forward rather than resetting on a clock, so five usually covers one submission or one flagged paragraph at a time.