GrammarLookup
GrammarLookup: A free, unlimited English web checker with useful style and passive-voice checks. Ranked #33 of 88 in Grammar Checkers by our editors (5.4/10); pricing: Free plan; best for free unlimited English web checking.
At a glance
- Editor score5.4 / 10
- PricingFree plan
- Best forFree unlimited English web checking
- Free planYes
- Paid fromFree
- Founded2017
- Facts checked21 Sep 2026
Where it wins
- Checks grammar, spelling, punctuation, style, and passive voice
- Supports unlimited text without requiring signup
- Handles American, British, and Australian English dialects
Where it doesn't
- Available only through the web
- Does not offer integrations
- Focused on English writing checks
Our verdict on GrammarLookup
GrammarLookup is a browser-based writing tool for students, freelance writers, authors, business professionals, and other English-language users. It checks grammar, spelling, punctuation, sentence construction, passive voice, and style issues in text entered or pasted into its online editor. Highlighted problems come with suggested edits, and users can apply corrections. Rich text editing and English dialect support make it suitable for reviewing everyday documents, essays, articles, and professional writing.
The pricing model is straightforward: GrammarLookup is free, with unlimited text checking and no signup required. Its feature set covers core proofreading needs rather than dividing capabilities across paid tiers. Alongside grammar and spelling corrections, the service includes punctuation checking, sentence correction suggestions, passive-voice checking, and style issue highlighting. AI features are also included, while the rich text editor provides a workspace for entering and reviewing content in the browser.
The main trade-off is platform breadth. GrammarLookup is web-only, so it suits users who are comfortable opening a browser and working in its online editor, but it is less suitable for workflows that depend on integrations with other writing or productivity tools. Its focus is English checking, with American, British, and Australian dialect support. Choose GrammarLookup for free, unlimited browser-based proofreading and style review; choose an alternative if integrated workflows or broader platform coverage are central requirements.
Your product? Our editors can test GrammarLookup in depth and publish a review, labelled as paid · from $149/mo →
GrammarLookup pricing
GrammarLookup fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Browser extension | Not verified |
| Desktop app | Not verified |
| Mobile app | Not verified |
| Style suggestions | Yes |
| Tone detection | Not verified |
| Languages supported | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Support | Email, Phone |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | grammarlookup.com |
| Facts checked | 21 Sep 2026 |
Alternatives to GrammarLookup
- GrammarlyA broad writing assistant with strong grammar, tone, rewriting, and AI coverage.9.4
- LanguageToolA broad multilingual checker with open-source and self-hosting options.9.2
- Microsoft EditorA strong Microsoft 365 writing assistant with focused platform coverage.9.0
See all GrammarLookup alternatives →
Also Ranked In
GrammarLookup is ranked in 2 of our directories.
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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used GrammarLookup for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
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Featured on iTechGuides
GrammarLookup is listed in our Grammar Checkers directory. Add the badge to your site — it links back to this page.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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