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WriteFit

Free Clarity Checker for Your Writing

Paste a paragraph and find out where a reader will get lost. WriteFit points to the 3 most important clarity problems — a vague claim, a buried main point, a sentence that makes the reader work too hard — quotes each one, and tells you what to change. You do the rewrite, so the fix sticks.

Paste at least 30 words of your own writing — an email, a report paragraph, a post. You'll get the 3 clarity issues that matter most, each quoted from your text.

0 / 30 words

No login needed for this trial. 2 free AI diagnoses per day.

Example: a status-update email

Source: the draft and the diagnosis below were written by the WriteFit team as an illustration, following the structure of the product's real output. Run your own text above to see live output.

Pasted text

Just wanted to give a quick update regarding the situation with the migration. Due to a number of factors, some of which were outside of our control, there have been certain delays, and as a result of this it is likely that the timeline we discussed previously may need to be revisited at some point in the near future, depending on how things progress.

Diagnosis: 3 specific issues

  1. 1. The main point is buried at the end of a long sentence

    Quoted: it is likely that the timeline we discussed previously may need to be revisited

    Why it matters: The one thing the reader needs — the deadline is moving — arrives after 40 words of preamble, and is then softened three times ('likely', 'may', 'at some point'). A busy reader skims the opening and misses it.

    Revision task: Make the news the first sentence, stated plainly: what is late and the new date (or when you will know it). Everything else goes after.

  2. 2. Vague nouns where facts should be

    Quoted: the situation with the migration … a number of factors … certain delays

    Why it matters: 'Situation', 'factors' and 'certain delays' tell the reader that something happened without telling them what. They cannot judge how worried to be or what to do.

    Revision task: Replace each vague noun with the specific fact: which part of the migration, which cause, how many days.

  3. 3. Filler phrases that add length but no meaning

    Quoted: Just wanted to give a quick update regarding … as a result of this … depending on how things progress

    Why it matters: These phrases make a two-sentence message feel like a paragraph. Each one delays the content and lowers the reader's attention for what follows.

    Revision task: Cut every phrase you could delete without losing information, then check the message still says what changed and what happens next.

The checker does not hand you a cleaner email. It shows you where clarity breaks and why, so you can write the two clear sentences yourself — and notice the same habit in your next draft.

What the clarity checker looks for

To see full rounds (draft → diagnosis → revision), read the worked examples. The diagnosis criteria are explained in the methodology.

Clarity checker: common questions

Is the clarity checker free?

Yes. Without an account you get 2 real AI diagnoses per day (counted per IP address and shared with the other free checkers on this site). A free account raises that to 5 per day.

Does it fix grammar or rewrite my sentences?

No. It is not a grammar checker and it never rewrites your text. It finds the 3 places where meaning gets lost, quotes them, explains why and gives you a task. You write the fix.

Does it give a readability score?

It gives an editor-style rating for clarity, specificity and voice, not a formula score like Flesch-Kincaid. Formula scores count syllables; this reads for whether the point actually comes across.

What kind of writing can I check?

Short pieces of about 30 to 300 words: emails, report paragraphs, posts, product descriptions, short essays. It is not built for long manuscripts or academic papers.

Which languages does it support?

English and Chinese. Paste text in either language and the feedback follows it.

Is my text stored?

On this page the text is sent to the AI model for diagnosis and is not saved to any account or history. Do not paste anything confidential.

Paste your text and check it free