Best AI Grammar Checkers in 2026
Updated
In short: LanguageTool is ranked #1 of 26 as of 4 October 2026, ahead of Grammarly and Linguix. The best-ranked option with a free plan is Grammarly. The lowest first paid tier on this page is Ginger at $0.42/mo.
When you want help reviewing writing, compare grammar checkers by their AI rewrite suggestions, supported languages, and custom rules. LanguageTool, Grammarly, and Linguix are among the options shown. The listed browser extensions, desktop apps, and document integrations can help you check how each fits where you write. If several people will use the tool, team administration may also be relevant. Free-plan availability and paid-from pricing give you additional points to weigh. Think about the languages you work in, the editing controls you want, and whether you need the checker in a browser, desktop environment, or connected document workflow.
26 AI grammar checkers ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 LanguageTool iPhone only RecognisedPhone appDocumentedFree plan 9.7Free Browser extension: YesDesktop app: Yes
- 2 Grammarly iPhone + Android RecognisedPhone appDocumentedFree plan 9.6$12/mo Browser extension: YesDesktop app: Yes
- 3 Linguix iPhone + Android RecognisedPhone appDocumentedFree plan 8.9$5/mo Browser extension: Yes
- 4 Ginger iPhone + Android RecognisedPhone appDocumentedFree plan 8.6$0.42/mo Browser extension: YesDesktop app: Yes
- 5 Antidote iPhone + Android RecognisedPhone appDocumentedFree plan 8.5€4/mo Browser extension: YesDesktop app: Yes
- 6 Scribens iPhone + Android RecognisedPhone appDocumentedFree plan 8.3Free Supported languages: 40 languagesBrowser extension: Yes
- 7 GrammarCheck.ai iPhone + Android RecognisedPhone appDocumentedFree plan 8.1$4/mo Browser extension: YesDesktop app: Yes
- 8 Trinka No phone app RecognisedPhone appDocumentedFree plan 7.9Free Browser extension: YesDesktop app: Yes
- 9 ProWritingAid No phone app RecognisedPhone appDocumentedFree plan 7.9$10/mo Browser extension: YesDesktop app: Yes
- 10 Sapling No phone app RecognisedPhone appDocumentedFree plan 7.7$1/mo Browser extension: YesDesktop app: Yes
- 11 Wordvice AI No phone app RecognisedPhone appDocumentedFree plan 7.4$0.70/mo Browser extension: Yes
- 12 Typlx iPhone only RecognisedPhone appDocumentedFree plan 7.3Free Browser extension: Yes
- 13 Wordeep Android only RecognisedPhone appDocumentedFree plan 7.2$8.25/mo Browser extension: YesDesktop app: Yes
- 14 Writefull No phone app RecognisedPhone appDocumentedFree plan 7.1Free Browser extension: Yes
- 15 QuillBot No phone app RecognisedPhone appDocumentedFree plan 7.0Free
- 16 Outwrite No phone app RecognisedPhone appDocumentedFree plan 7.0$7.95/mo Browser extension: YesDesktop app: No
- 17 Microsoft Editor No phone app RecognisedPhone appDocumentedFree plan 6.5 Browser extension: YesDesktop app: No
- 18 Write Wise Android only RecognisedPhone appDocumentedFree plan 6.4
- 19 Slick Write No phone app RecognisedPhone appDocumentedFree plan 6.2Free Browser extension: Yes
- 20 Harper No phone app RecognisedPhone appDocumentedFree plan 6.0Free Browser extension: YesDesktop app: Yes
- 21 Poli No phone app RecognisedPhone appDocumentedFree plan 5.8Free Browser extension: YesDesktop app: Yes
- 22 GrammarCheck.net No phone app RecognisedPhone appDocumentedFree plan 5.6 Browser extension: Yes
- 23 SpellBoy No phone app RecognisedPhone appDocumentedFree plan 5.5 Supported languages: 13 languages
- 24 Grammalecte No phone app RecognisedPhone appDocumentedFree plan 5.5 Browser extension: YesDesktop app: Yes
- 25 ORFO No phone app RecognisedPhone appDocumentedFree plan 5.2 Desktop app: Yes
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which AI grammar checker is ranked first on Samsung Mobile US Press?
LanguageTool is ranked #1 of 26 with a score of 9.7. Grammarly is second and Linguix third.
How many of these have a free plan?
16 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Ginger has the lowest first paid tier we found: $0.42/mo.
How is this list ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.