Grammar Proofreading Checklist
Heuristic draft scan for double spaces, repeats, passive voice, long sentences — plus a grammar checklist.
Open toolLanguage & Grammar
Sentence Length Analyser
Spot overly long or repetitive sentences in your draft.
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Limitations & honesty notes
- Not a full grammar engine or plagiarism scanner.
How to use
- Paste text or work the checklist.
- Review live insights.
- Proofread manually before submit.
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About Sentence Length Analyser
Is Sentence Length Analyser free?
Yes. Every Study Tools Ninja tool is free for students.
Does it work on mobile?
Yes. The layout is built for phones and laptops used on campus.
Do you store my data?
Tool inputs run in your browser. Study Tools Ninja does not require an account to use these helpers.