Non-AI Grammar Checker
Use a free, rule-based English grammar checker without generative AI, sign-up, or text uploads. Check spelling, punctuation, capitalization, and more locally.
Open toolFormatting tool
Text Case Converter
Change capitalization across headings, notes, and copied text without retyping it. Your original input stays visible until you choose to replace it.
Paste or type your text
Results update automatically.
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Start typing or use the example.
What this tool checks
A focused signal for your next edit.
Case conversion is useful after copying text from slides, PDFs, forms, or all-caps notes. It handles the mechanical change quickly so you can focus on names, acronyms, and style-guide exceptions.
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Sentence and title case
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Uppercase and lowercase
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Copy or replace input
Practical uses
Use the result as a review list.
- Turn an all-caps heading into readable title or sentence case.
- Normalize inconsistent notes before editing them.
- Create lowercase or uppercase text for a required form field.
Questions
Before you use the result.
What is sentence case?
Sentence case capitalizes the first letter of each sentence while leaving the remaining words lowercase except where you edit proper nouns or acronyms.
Which title-case style does this use?
It uses a practical general rule that keeps common short articles, conjunctions, and prepositions lowercase unless they begin or end the title.
Does conversion overwrite my original text?
No. The result appears separately. You can copy it or choose Replace input when you are ready.
Need AI detection too?
Check text, images, and audio in the mobile app.
Use these free browser tools for mechanical review, then use Stealth AI Detector when you need AI and human probability signals.
