For a full walkthrough of issue types, limits, and proofreading workflows, read our Grammar Checker guide.
How to use the Grammar Checker
This tool uses the ShoutingNow three-column editor layout: writing tools on the left, your text in the center, and live statistics on the right. Click Free Check for standard grammar and spelling analysis, or Deep Check for a more thorough picky pass with style suggestions.
- Paste or type your text in the editor.
- Click Free Check — spelling, grammar, punctuation, and style issues appear as color-coded highlights.
- Use Deep Check when you want a deeper review with additional style and clarity flags.
- Apply fixes one at a time or click Fix Errors for bulk corrections.
- Use the stats panel for readability, flow score, social/essay length targets, and keyword density.
- Open Tools for dark mode, AI detector, thesaurus, and title capitalizer.
What the checker looks for
| Category | Examples |
|---|---|
| Spelling | Common misspellings (definitely, separate, receive, grammar) |
| Grammar | Capitalization after periods, standalone i, homophones (their/there, your/you’re), could of → could have |
| Punctuation | Double spaces, missing spaces after commas, extra spaces before periods |
| Style | Repeated words, long sentences, passive voice flags, multiple exclamation marks |
Who uses a grammar checker?
- Students — polish essays and discussion posts before submission.
- Bloggers and marketers — catch typos in newsletters and landing-page copy.
- Freelance editors — run a first pass before deeper line editing.
- Non-native English writers — spot punctuation and article patterns quickly.
Pair with other writing tools
After grammar fixes, use the Capitalize Sentences tool for bulk sentence-case cleanup, the Compare Text tool to see exactly what changed between drafts, and the Character Counter to verify platform limits.
Privacy note
Grammar and Deep Check use ShoutingNow’s online grammar analysis service. Thesaurus lookups use a separate online word API. ShoutingNow does not store your content. For confidential drafts, clear the editor when finished on a shared computer.
Limitations
Automated checking catches frequent mistakes and clear patterns but is not a substitute for a human editor. Deep Check is more thorough than Free Check yet may still miss context-specific errors. Use suggestions as a helpful first pass, then proofread for tone and terminology.
Related writing tools
- Full guide article for this tool
- Writing Tools Playbook — when to use each utility
- Capitalize Sentences
- Compare Text
- Character Counter