Punctuation & Spelling Checker Online Free

A free text proofreader with punctuation and spell checking for 7 languages. Auto-detects language, explains rules behind each error, and fixes everything with one click. Private — your text

How to Use the Punctuation Checker

1
Paste your text

Type or paste the text you want to check into the editor. The tool auto-detects whether it's Russian or English.

2
Review the issues

Each issue is highlighted in your text and listed in the sidebar with an explanation of the punctuation rule.

3
Apply fixes

Click "Fix" on individual issues or "Fix All" to apply every correction at once. Use undo to revert any change.

4
Compare changes

Use the Diff view to see a side-by-side comparison of original and corrected text.

5
Copy or export

Copy the corrected text to your clipboard or download a detailed error report as a TXT file.

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Proofread commas, typos, and spelling mistakes with rule explanations

Language:
Strictness:
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Issues
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Statistics
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Ctrl+Enter Check Ctrl+Z Undo Tab Next issue

Changes

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Features

Auto-detect Russian and English text with instant analysis Find comma errors, missing periods, wrong quotes, dashes, and more Get rule explanations for every issue — learn as you fix 3 strictness levels: mild (only clear errors), standard, strict (style suggestions)

Frequently Asked Questions

Which languages does the punctuation checker support?

It supports 7 languages: Russian, English, Portuguese, Korean, Arabic, Indonesian, and German with automatic detection. Each has language-specific rules — Russian commas, guillemets, em-dashes; English contractions; Portuguese adversative conjunctions; Arabic punctuation marks; Indonesian comma rules.

Is there a character limit?

No. Unlike Grammarly or LanguageTool free tiers, there is no character limit. You can check texts of any length.

What are the strictness levels?

Mild shows only clear-cut errors (confidence > 95%). Standard adds likely errors. Strict includes stylistic suggestions like repeated punctuation or optional commas.

Can I undo changes after fixing?

Yes. Every fix is recorded in the history. Use the Undo button or Ctrl+Z to revert any change. You can also redo reverted changes.

Why does it sometimes miss errors?

The checker uses a rules-based engine optimized for zero false positives. It only shows issues it is highly confident about. Complex grammatical context may require an AI-based engine, which we plan to add in the future.

💡 Want us to improve this tool just for you?

We can — and it's free! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.

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Who is this tool for?
✨ Content Creators 🎓 Students 📚 Educators & Teachers
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