Best Grammar Checkers in 2026
Updated
In short: LanguageTool is ranked #1 of 88 as of 9 October 2026, ahead of Grammarly and Trinka. The best-ranked option with a free plan is Grammarly. The lowest first paid tier on this page is GrammarCheck.ai at $0.21/mo.
Whether you’re polishing a short message or revising longer documents, grammar checkers can help you review writing as you work. Compared on browser extensions, desktop and mobile apps, and languages supported, the entries show where each tool can be used. Style suggestions and tone detection describe other kinds of feedback to weigh, while free-plan availability and paid-from pricing help you compare costs. LanguageTool, Grammarly, and Trinka are among the named options, alongside Sapling and Wordvice AI. Consider the languages you write in, where you prefer to edit, and whether you want feedback on phrasing or tone as well as grammar.
88 grammar checkers ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
23 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | LanguageToolWindows · Mac · iPhone · Extension | Three bars | — | 3 of 6 | Free | 8.2 | |
| 2 | GrammarlyAndroid · iPhone | Two bars | — | 2 of 6 | $12/mo | 8.0 | |
| 3 | TrinkaWeb · Windows · Mac · Self-hosted · API · Extension | Three bars | — | 3 of 6 | Free | 8.0 | |
| 4 | MerciAppWeb · Windows · Mac · Android · iPhone · Extension | Three bars | — | 5 of 6 | €12/mo | 8.0 | |
| 5 | SaplingWeb · Windows · Self-hosted · API · Extension | Two bars | — | 2 of 6 | $5/mo | 7.9 | |
| 6 | Wordvice AIWeb · Windows · Mac · Extension | Three bars | — | 3 of 6 | $0.70/mo | 7.9 | |
| 7 | HarperWeb · Windows · Mac · Linux · Android · iPhone · API · Extension | Three bars | — | 6 of 6 | Free | 7.9 | |
| 8 | ProWritingAidExtension | Two bars | — | 0 of 6 | $10/mo | 7.8 | |
| 9 | LinguixWeb · Android · iPhone · API · Extension | Three bars | — | 3 of 6 | $5/mo | 7.8 | |
| 10 | iGrammarWeb · Mac · Android · iPhone · API · Extension | Three bars | — | 4 of 6 | $10/mo | 7.8 | |
| 11 | Grammar GuruWeb · Windows · Mac · Linux · Extension | Three bars | — | 4 of 6 | $1/mo | 7.8 | |
| 12 | Rechtschreibprüfung24Web | Two bars | — | 1 of 6 | $300/mo | 7.6 | |
| 13 | TextGearsWeb · API | Two bars | — | 1 of 6 | $2.48/mo | 7.6 | |
| 14 | GemTypeWeb · Windows · Mac · Linux | Three bars | — | 4 of 6 | Free | 7.6 | |
| 15 | GrammarCheck.aiWeb · Linux · Android · iPhone · API · Extension | Three bars | — | 4 of 6 | $0.21/mo | 7.5 | |
| 16 | Virtual Writing TutorWeb | Two bars | — | 1 of 6 | $3/mo | 7.3 | |
| 17 | Slick WriteWeb · Extension | Two bars | — | 1 of 6 | Free | 7.3 | |
| 18 | TyplxiPhone · Self-hosted · Extension | Two bars | — | 1 of 6 | Free | 7.3 | |
| 19 | GingerWeb · Windows · Mac · Android · iPhone · Self-hosted · API · Extension | Two bars | — | — | 5 of 6 | $0.42/mo | 7.2 |
| 20 | Sentence CheckerWeb | Two bars | — | 1 of 6 | Free | 7.2 | |
| 21 | LexiCheckWeb | Two bars | — | 1 of 6 | $2/mo | 7.2 | |
| 22 | CorrectEnglishWeb · Android · iPhone · Extension | Three bars | — | 3 of 6 | $6.67/mo | 7.2 | |
| 23 | ScribensWeb · Windows · Mac · Android · iPhone | Two bars | — | — | 5 of 6 | €4.99/mo | 7.0 |
| 24 | Corrector.appWeb | One bar | — | 1 of 6 | Free | 7.0 | |
| 25 | CorrectNowWeb | One bar | — | 1 of 6 | Free | 7.0 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Browser extension | Desktop app |
|---|---|---|---|---|---|---|---|---|
| 1 | LanguageTool | 8.2 | Free plan | Free | Yes | Free | Yes | Yes |
| 2 | Grammarly | 8.0 | Free plan | $12/mo | Yes | $12/user/mo | Yes | Yes |
| 3 | Trinka | 8.0 | Free plan | — | Yes | — | Yes | Yes |
| 4 | MerciApp | 8.0 | Free plan | €12/mo | Yes | — | Yes | Yes |
| 5 | Sapling | 7.9 | Free plan | $5/mo | Yes | $12/user/mo | Yes | Yes |
| 6 | Wordvice AI | 7.9 | Free plan | $0.70/mo | Yes | — | Yes | — |
| 7 | Harper | 7.9 | Free plan | Free | Yes | — | Yes | Yes |
| 8 | ProWritingAid | 7.8 | Free plan | $10/mo | Yes | $550/user/mo | Yes | Yes |
| 9 | Linguix | 7.8 | Free plan | $5/mo | Yes | — | Yes | — |
| 10 | iGrammar | 7.8 | Free plan | $10/mo | Yes | — | Yes | Yes |
| 11 | Grammar Guru | 7.8 | Free plan | $1/mo | Yes | — | Yes | Yes |
| 12 | Rechtschreibprüfung24 | 7.6 | Free plan | $300/mo | Yes | — | Yes | — |
| 13 | TextGears | 7.6 | Free plan | $2.48/mo | Yes | — | — | — |
| 14 | GemType | 7.6 | Free plan | Free | Yes | — | Yes | Yes |
| 15 | GrammarCheck.ai | 7.5 | Free plan | $0.21/mo | Yes | — | Yes | Yes |
| 16 | Virtual Writing Tutor | 7.3 | Free plan | $3/mo | Yes | — | — | — |
| 17 | Slick Write | 7.3 | Free plan | Free | Yes | — | Yes | — |
| 18 | Typlx | 7.3 | Free plan | Free | Yes | — | Yes | — |
| 19 | Ginger | 7.2 | No | $0.42/mo | Yes | — | Yes | Yes |
| 20 | Sentence Checker | 7.2 | Free plan | Free | Yes | — | Yes | — |
| 21 | LexiCheck | 7.2 | Free plan | $2/mo | Yes | — | — | — |
| 22 | CorrectEnglish | 7.2 | Free plan | $6.67/mo | Yes | — | Yes | — |
| 23 | Scribens | 7.0 | No | €4.99/mo | Yes | — | Yes | Yes |
| 24 | Corrector.app | 7.0 | Free plan | Free | Yes | — | — | — |
| 25 | CorrectNow | 7.0 | Free plan | Free | Yes | — | — | — |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which grammar checker is ranked first on Freedom251?
LanguageTool is ranked #1 of 88 with a score of 8.2. Grammarly is second and Trinka third.
How many of these have a free plan?
23 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, GrammarCheck.ai has the lowest first paid tier we found: $0.21/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.