Shortlist by what you need
Start here if you know why you are leaving Grammar Checker.
Want the closest match?
ReWrite It.AIMost similar to Grammar Checker in what it does, its category and its price.
Visit (opens ReWrite It.AI in a new tab)Need a free plan?
GrammarlyHas a free plan, rated 4.6 out of 5.
Visit (opens Grammarly in a new tab)Want the lowest price?
Paraphraser.ioFrom $7/mo, the lowest starting price here.
Visit (opens Paraphraser.io in a new tab)Want the best rated?
Jenni AIRated 4.4 out of 5 in our review, against 3.7 for Grammar Checker.
Visit (opens Jenni AI in a new tab)
At a glance
Green means better than Grammar Checker, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 Grammar CheckerBaseline | 3.7 | Free | Yes | Free AI grammar, punctuation and style checker with explanatory feedback, not just silent auto-fixes. | |
| ReWrite It.AI | 2.9−0.8 | $9.99/mo | Yes | Paraphrase, summarize, and grammar-check your emails, essays, and social posts across multiple languages - a free tier covers up to 250 words. | vs Grammar Checker |
 Outwrite | 3.3−0.4 | Free | Yes | Grammar, style, paraphrasing, and passive-voice fixes with readability scoring - across Chrome, Word, Docs, Gmail, and more. | vs Grammar Checker |
 Cowriter | 3.8+0.1 | $19/mo | No | Cowriter sits inside a research document, suggesting words, fixing grammar, and generating citations built for academic writing. | vs Grammar Checker |
 Scribens | 3.9+0.2 | Free | Yes | Free AI-powered grammar and spell checker for English and 40+ languages, with a Premium paraphrasing tool and browser extensions for Gmail, Word, Google Docs and major social platforms. | vs Grammar Checker |
| Grammarly | 4.6+0.9 | $12/mo | Yes | The writing assistant almost everyone has already used | vs Grammar Checker |
 Writefull | 4.3+0.6 | $12.5/mo | Yes | Academic language feedback that lives inside Overleaf | vs Grammar Checker |
| Paraphraser.io | 4.0+0.3 | $7/mo | Yes | Paraphrasing tool with six rewriting modes and built-in plagiarism and grammar checks. | vs Grammar Checker |
| Jenni AI | 4.4+0.7 | Free | Yes | In-line AI drafting built for academic papers | vs Grammar Checker |
The alternatives in detail
In order of how closely each one matches Grammar Checker.
ReWrite It.AI
2.9$9.99/mo
vs Grammar Checker−0.8
Paraphrase, summarize, and grammar-check your emails, essays, and social posts across multiple languages - a free tier covers up to 250 words.
- AI paraphrasing, summarization, and grammar checking
- Automatic detection and correction of grammar, spelling, and style issues
- Multiple templates for different writing types
Free tier available to try before paying
Free tier is quite limited at 250 words
Outwrite
3.3Free
vs Grammar Checker−0.4
Grammar, style, paraphrasing, and passive-voice fixes with readability scoring - across Chrome, Word, Docs, Gmail, and more.
- AI-powered grammar, spelling, and punctuation correction
- Style improvement suggestions
- Readability and grade-level writing statistics
Broad platform integration - works everywhere from Gmail to Google Docs to LinkedIn
Specific pricing for Pro/Teams tiers isn't shown on the main page
Cowriter
3.8$19/mo
vs Grammar Checker+0.1
Cowriter sits inside a research document, suggesting words, fixing grammar, and generating citations built for academic writing.
- Inline word and sentence suggestions while typing
- Automatic grammar and spelling correction built into the writing surface
- Citation generation for research papers
Built specifically for academic and research writing rather than general copy
Free trial is capped at 20 prompts, not a standing free tier
Scribens
3.9Free
vs Grammar Checker+0.2
Free AI-powered grammar and spell checker for English and 40+ languages, with a Premium paraphrasing tool and browser extensions for Gmail, Word, Google Docs and major social platforms.
- AI-powered grammar, spelling and syntax correction across 40+ languages
- Clear rule-based explanations for every flagged mistake
- Works directly inside Gmail, Word, Google Docs and major social platforms via extensions
Free tier is genuinely usable rather than a limited trial
Free plan is capped at 8,000 characters a day and carries ads
Grammarly
4.6$12/mo
vs Grammar Checker+0.9
The writing assistant almost everyone has already used.
- Real-time grammar, spelling, and punctuation checks
- Tone detection and clarity rewrite suggestions
- GrammarlyGO generative drafting and rewriting
Free tier is genuinely useful long-term, not just a trial
Generative features feel bolted onto an older core product
Writefull
4.3$12.5/mo
vs Grammar Checker+0.6
Academic language feedback that lives inside Overleaf.
- Native Overleaf and LaTeX integration
- Language feedback trained on published academic writing
- Title and abstract generation tools
Only major tool integrating directly into Overleaf's LaTeX workflow
Narrow value outside LaTeX-based academic writing
Paraphraser.io
4.0$7/mo
vs Grammar Checker+0.3
Paraphrasing tool with six rewriting modes and built-in plagiarism and grammar checks.
- Six paraphrasing modes from subtle rewording to creative rewriting
- Image and screenshot text extraction before rewriting
- Built-in plagiarism checker and grammar correction
Entry price undercuts most subscription paraphrasing tools
Name collision with the similarly branded Paraphrasing.io causes buyer confusion
Jenni AI
4.4Free
vs Grammar Checker+0.7
In-line AI drafting built for academic papers.
- In-line autocomplete drafting inside a document editor
- AI-assisted citation and source pulling
- Paraphrasing tool for reworking source material
Purpose-built for academic writing, not adapted marketing tooling
Narrow fit for anyone outside academic or research writing
FAQ
Questions people ask
Is Grammar Checker free?
Grammar Checker has a free plan.
What is the best free alternative to Grammar Checker?
Grammarly is the highest-rated alternative here with a free plan (4.6 out of 5). Other free options: Jenni AI, Writefull, Paraphraser.io.
What is the cheapest alternative to Grammar Checker?
Among paid plans, Paraphraser.io has the lowest starting price (from $7/mo). If you need it free, start with Grammarly.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.