Best Instant Grammar Alternatives in 2026
Updated
20 tools from grammar checkers ranked against Instant Grammar on the same published basis.
- 1Instant Grammar vs MerciApp
- 2Instant Grammar vs LanguageTool
- 3Instant Grammar vs Microsoft Editor
- 4Instant Grammar vs Sapling
- 5Instant Grammar vs Duden-Mentor
- 6Instant Grammar vs iGrammar
- 7Instant Grammar vs Grammarly
- 8Instant Grammar vs Ginger
- 9Instant Grammar vs Trinka
- 10Instant Grammar vs Wordvice AI
- 11Instant Grammar vs Grammar Guru
- 12Instant Grammar vs Harper
- 13Instant Grammar vs Linguix
- 14Instant Grammar vs ProWritingAid
- 15Instant Grammar vs Scribens
- 16Instant Grammar vs Antidote
- 17Instant Grammar vs GrammarCheck.ai
- 18Instant Grammar vs Cordial
- 19Instant Grammar vs GemType
- 20Instant Grammar vs WhiteSmoke
Instant Grammar alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | MerciApp | 9.1 | Free plan | €12/mo | Android, Browser, iOS, Mac, Web, Windows |
| 2 | LanguageTool | 8.9 | Free plan | Free | Browser, iOS, Mac, Windows |
| 3 | Microsoft Editor | 8.8 | Browser, Mac, Web, Windows | ||
| 4 | Sapling | 8.8 | Free plan | $5/mo | API, Browser, self-hosted, Web, Windows |
| 5 | Duden-Mentor | 8.7 | Free plan | €2.99/mo | Browser, Mac, Web, Windows |
| 6 | iGrammar | 8.7 | Free plan | $10/mo | Android, API, Browser, iOS, Mac, Web |
| 7 | Grammarly | 8.6 | Free plan | $12/mo | Android, iOS |
| 8 | Ginger | 8.5 | $0.42/mo | Android, API, Browser, iOS, Mac, self-hosted, Web, Windows | |
| 9 | Trinka | 8.5 | Free plan | API, Browser, Mac, self-hosted, Web, Windows | |
| 10 | Wordvice AI | 8.5 | Free plan | $0.70/mo | Browser, Mac, Web, Windows |
| 11 | Grammar Guru | 8.5 | Free plan | $1/mo | Browser, Linux, Mac, Web, Windows |
| 12 | Harper | 8.5 | Free plan | Free | Android, API, Browser, iOS, Linux, Mac, Web, Windows |
| 13 | Linguix | 8.4 | Free plan | $5/mo | Android, API, Browser, iOS, Web |
| 14 | ProWritingAid | 8.3 | Free plan | $10/mo | Browser |
| 15 | Scribens | 8.2 | €4.99/mo | Web, Windows, Mac, iOS, Android | |
| 16 | Antidote | 8.2 | No | €4/mo | Web, Windows, Mac, Linux, iOS, Android |
| 17 | GrammarCheck.ai | 8.2 | Free plan | $0.21/mo | Android, API, Browser, iOS, Linux, Web |
| 18 | Cordial | 8.1 | Free plan | Browser, Web, Windows | |
| 19 | GemType | 8.1 | Free plan | Free | Windows, Mac, Linux, Web |
| 20 | WhiteSmoke | 8.1 | $0.42/mo | Android, Browser, iOS, Mac, Web, Windows |
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Questions about Instant Grammar alternatives
What is the best alternative to Instant Grammar?
MerciApp, number 1 in grammar checkers with a score of 9.1 out of 10. The others here: LanguageTool, Microsoft Editor, Sapling and 16 more.
What is the best free alternative to Instant Grammar?
MerciApp is the best-ranked alternative with a free plan. 15 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.