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Text Analyzercefr text checker

CEFR Text Checker

Paste an English passage and get a first-pass CEFR estimate based on sentence complexity, word length, and level-signal vocabulary.

FreeInstant resultNo upload needed
Estimate CEFR level from pasted English text.
See sample-size confidence instead of a fake-precise single label.
Use matched level signals as a quick sanity check.

Text analyzer panel

Paste text and watch the estimate update immediately.

Live analysis
Estimated level: C1. This sample looks most compatible with C1 reading material based on sentence complexity, vocabulary profile, and matched level signals.
Estimated CEFR level
C1
Low confidence based on the current sample size.
Word count
28
26 unique words in the sample.
Average sentence length
14.0 words
Longer sentences usually push texts toward higher reading levels.
Advanced share
28.6%
Estimated share of C1-C2 vocabulary in the sample.

Takeaways

This is a short sample. The result is directionally useful, but not stable enough to treat as precise.

If this is your target reading level, avoid exporting every unknown word. Filter harder so the deck does not become heavier than the text itself.

Detected higher-level signals include strategy.

Matched signals

strategy

How to interpret this tool

A CEFR estimate is only useful if it helps you make a reading decision. The question is not whether the text is objectively advanced. The question is whether it sits at a level you can read without turning every paragraph into extraction work.

This checker gives you a practical first pass. Use it to compare passages, choose between books, or decide whether a text should become an Anki deck at all.

Usage notes

Treat short samples as directional only. The tool becomes more useful when the text reflects the real body of the book.
If vocabulary looks manageable but the text still feels hard, syntax or topic familiarity may be doing the damage.
Use the result to compare texts against each other, not to pretend the score is an official assessment.

FAQ

Is this an official CEFR assessment?

No. It is a heuristic reading-level estimate for planning and comparison, not a formal language certification tool.

How much text should I paste?

Roughly 80 to 250 words is usually enough for a useful first pass. Shorter than that gets noisy fast.

Why can a text still feel hard even if the CEFR estimate seems low?

Because difficulty is not only level. Unknown-word density, topic familiarity, and sentence style all change the actual reading experience.

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