AI Text Tone Adjuster & Analyzer

Paste any draft, pick a target tone, and instantly see readability metrics, a tone-fit score, and a rewritten opening line — a quick way to test what long-form editors like Jasper AI's document editor are doing under the hood.

Tone Analysis Workspace

📝 YOUR DRAFT

Paste Your Text

Target Tone

Word Count0

Sentences0

Avg Words/Sentence0

Reading Time0s

TONE FIT SCORE

Match to Selected Tone0%

SUGGESTED OPENING (ADJUSTED TONE)

Paste your text and click Analyze to see a suggestion.

What Does Tone Fit Measure?

Tone isn't just word choice — it's sentence length, keyword density, and directness. This tool scores how closely your draft already matches a target tone (Professional, Friendly, Persuasive, or Casual), then shows a rewritten opening line as an example of the shift, similar to what an AI long-form editor does automatically as you write.

How to Run a Tone Check

Paste Your Draft

Drop in a paragraph, email, or article excerpt — the more text you provide, the more accurate the metrics.

Pick a Target Tone

Choose Professional, Friendly, Persuasive, or Casual depending on where this content will be published.

Read the Metrics

Check word count, sentence length, and estimated reading time to see if your draft matches your audience's attention span.

Apply the Suggested Opening

Use the rewritten first line as a template for adjusting the rest of your draft to the target tone.

Frequently Asked Questions

Does this actually rewrite my whole document like Jasper AI's editor?

No — this tool analyzes your text and adjusts a single opening line as a quick example using rule-based patterns. A full AI document editor like Jasper's rewrites entire sections using a language model, which requires a paid subscription.

What does the Tone Fit Score actually mean?

It's an estimate based on keyword patterns and sentence structure typically associated with each tone. Treat it as a directional signal, not an exact grade.