Best Grammar Checkers in 2026
Updated
88ranked
18free plans on this page
$0.01/molowest paid tier
12 Oct 2026last checked
18 of 19 with known pricing have a free tier;0 apps show full bars: free, open, on most devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 51 | ProseExtension | Two bars | 0 of 6 | $10/mo | 6.6 | ||
| 52 | GrammarBotAPI | Two bars | 0 of 6 | $0.01/mo | 6.6 | ||
| 53 | WhiteSmokeWeb · Windows · Mac · Android · iPhone · Extension | Two bars | 5 of 6 | $0.42/mo | 6.5 | ||
| 54 | CorrectlyExtension | Two bars | 0 of 6 | Free | 6.5 | ||
| 55 | An GramadóirWeb · Windows · Mac · Linux · API | Three bars | 4 of 6 | Free | 6.5 | ||
| 56 | GramaraWeb | Two bars | 1 of 6 | Free | 6.4 | ||
| 57 | SpellBoyWeb | Two bars | 1 of 6 | Free | 6.4 | ||
| 58 | RefineMac | Two bars | 1 of 6 | $38/mo | 6.4 | ||
| 59 | TextivoWeb · Extension | Two bars | 1 of 6 | €4.99/mo | 6.4 | ||
| 60 | GrammalecteWindows · Mac · Linux · Extension | Three bars | 3 of 6 | Free | 6.4 | ||
| 61 | TextRanchWeb | One bar | 1 of 6 | $10/mo | 6.2 | ||
| 62 | OnlineCorrection.comWeb | Two bars | 1 of 6 | Free | 6.2 | ||
| 63 | Corrector CastellanoWeb | Two bars | 1 of 6 | Free | 6.2 | ||
| 64 | tinySpellWindows | Two bars | 1 of 6 | Free | 6.2 | ||
| 65 | BonPatronWeb | Two bars | 1 of 6 | Free | 6.2 | ||
| 66 | SpellCheckPlusWeb | Two bars | 1 of 6 | Free | 6.2 | ||
| 67 | WordeepWeb · Mac · Android · iPhone · Extension | Two bars | 4 of 6 | $8.25/mo | 6.1 | ||
| 68 | PoliMac · Extension | Two bars | 1 of 6 | Free | 6.1 | ||
| 69 | GhotitWindows · Mac · iPhone | Two bars | No | 3 of 6 | 6.0 | ||
| 70 | AlloCorrecteurWeb | One bar | 1 of 6 | €490/mo | 6.0 | ||
| 71 | Instant GrammarWindows | Two bars | 1 of 6 | Free | 6.0 | ||
| 72 | SpanishCheckerWeb | Two bars | 1 of 6 | Free | 6.0 | ||
| 73 | CorrectifyWindows · Mac · Linux | One bar | 3 of 6 | 5.9 | |||
| 74 | TyperightAndroid · iPhone · Extension | One bar | 2 of 6 | 5.9 | |||
| 75 | Write WiseAndroid | Two bars | 1 of 6 | Free | 5.9 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Browser extension | Desktop app |
|---|---|---|---|---|---|---|---|---|
| 51 | Prose | 6.6 | Free plan | $10/mo | Yes | Yes | No | |
| 52 | GrammarBot | 6.6 | Free plan | $0.01/mo | Yes | No | No | |
| 53 | WhiteSmoke | 6.5 | $0.42/mo | Yes | Yes | Yes | ||
| 54 | Correctly | 6.5 | Free plan | Free | Yes | |||
| 55 | An Gramadóir | 6.5 | Free plan | Free | Yes | |||
| 56 | Gramara | 6.4 | Free plan | Free | Yes | |||
| 57 | SpellBoy | 6.4 | Free plan | Free | Yes | |||
| 58 | Refine | 6.4 | Free plan | $38/mo | Yes | Yes | ||
| 59 | Textivo | 6.4 | Free plan | €4.99/mo | Yes | Yes | ||
| 60 | Grammalecte | 6.4 | Free plan | Free | Yes | Yes | Yes | |
| 61 | TextRanch | 6.2 | $10/mo | Yes | ||||
| 62 | OnlineCorrection.com | 6.2 | Free plan | Free | Yes | |||
| 63 | Corrector Castellano | 6.2 | Free plan | Free | Yes | No | ||
| 64 | tinySpell | 6.2 | Free plan | Yes | Yes | |||
| 65 | BonPatron | 6.2 | Free plan | Yes | No | |||
| 66 | SpellCheckPlus | 6.2 | Free plan | Yes | No | |||
| 67 | Wordeep | 6.1 | $8.25/mo | No | Yes | Yes | ||
| 68 | Poli | 6.1 | Free plan | Free | Yes | Yes | Yes | |
| 69 | Ghotit | 6.0 | No | No | No | Yes | ||
| 70 | AlloCorrecteur | 6.0 | €490/mo | Yes | ||||
| 71 | Instant Grammar | 6.0 | Free plan | Free | Yes | Yes | ||
| 72 | SpanishChecker | 6.0 | Free plan | Yes | No | |||
| 73 | Correctify | 5.9 | Yes | |||||
| 74 | Typeright | 5.9 | Yes | Yes | ||||
| 75 | Write Wise | 5.9 | Free plan | Free | Yes |