Punctuation, Comma & Spelling Checker Online

A free text proofreader that checks Russian and English punctuation, commas and spelling. It auto-detects the language, explains the rule behind each error and fixes everything in one click — and Russian gets an advanced spell-checker that runs right in your browser.

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.

🔥 Trending right now
🗣️ Text to Speech ✨ Video Enhancer ✂️ Trim Audio ✨ Audio Enhancer 🎭 Voice Changer 🎙️ Vocal Remover 🎬 Create Video from Audio 🎬 Trim Video

Proofread your text and fix commas, typos and spelling with rule explanations

Language:
Strictness:
1
0 characters
Issues
🔍
Please enter text first
Statistics
0
Characters
0
Words
0
Sentences
0
Avg sentence
0
Paragraphs
Ctrl+Enter Check Ctrl+Z Undo Tab Next issue

Changes

Original
Corrected
Don't know what to try?
450+ free tools — open a surprise
🎲 Surprise me

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 checks punctuation in several major languages with automatic detection, with the strongest support for Russian and English. Each language has its own rules — Russian commas, guillemets and em-dashes; English contractions and compound-sentence commas; plus comma rules for Portuguese, Korean, Arabic and Indonesian. Russian also has an advanced spell-checker.

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 tuned to minimise false positives, so it flags only 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.

You May Also Like

А́ Russian Stress Marks 🔤 Russian–Latin Transliterator 🔢 Word Counter # ASCII Text Art ⏰ Cron Parser <> HTML Formatter {} JSON Formatter ⇄ JSON ↔ CSV

How do you rate this tool?

Thank you for your rating!
Want to share more? Leave a comment!
Thank you! Your comment will appear after moderation.
Who is this tool for?
✨ Content Creators 🎓 Students 📚 Educators & Teachers
Published Updated