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Best AI Grammar Checkers in 2026

AI grammar checkers can help you review writing across different apps, documents, and team workflows. Compared on AI rewrite suggestions, supported languages, custom rules, and document integrations, the entries also identify browser extensions and desktop apps. LanguageTool, GrammarCheck.ai, and Linguix are among the options to weigh, alongside Outwrite and Sapling. Consider where you write most, which languages and editing preferences you need, and whether colleagues will share the tool through team administration features. Free-plan availability and paid-from pricing provide further comparison points as you consider how each option fits your writing routine.

26 apps
Research read 23 Sept 2026
How the order is worked out

1

Grammalecte

Free plan Open source APIExtensionLinux+3

Grammalecte offers French-focused checks alongside dictionary options and writing tools, with listed desktop, browser, and office integrations.

9.2 Free plan Visit site
2

Harper

Free plan Open source AndroidAPIExtension+5

Harper offers free writing checks across web and desktop platforms, with style suggestions also available. Its listed language coverage is one language.

9.1 Free plan Visit site
3

Ginger
by Ginger
Free plan AndroidAPIExtension+5

Ginger brings English proofreading, rephrasing, and translation into desktop, mobile, web, and organizational workflows. Compare the listed plan terms carefully, as multiple paid options are provided.

7.6 Free plan · paid from $6/mo (annual) Visit site
4

GrammarCheck.ai

Free plan AndroidAPIExtension+3

Choose GrammarCheck.ai if you want grammar and punctuation correction alongside style suggestions and several other writing tools.

7.6 Free plan · paid from $2.50/mo (annual) Visit site
5

LanguageTool
by LanguageTool
Free plan ExtensioniPhoneMac+1

LanguageTool covers writing checks and paraphrasing across several work contexts, with additional team controls.

7.4 Free plan Visit site
6

Linguix

Free plan AndroidAPIExtension+2

Linguix combines individual writing assistance with a separate set of team features. Check the annual billing terms and Business seat minimum when choosing a plan.

7.4 Free plan · paid from $11.67/mo (annual) Visit site
7

Microsoft Editor

Free plan ExtensionMacWeb+1

Editor covers basic proofreading for free and adds clarity, style, and similarity assistance. Consider the language-selection limit and Edge's cloud-processing option when choosing how to use it.

7.4 Free plan Visit site
8

Outwrite
by Outwrite
Free plan APIExtensionMac+2

Outwrite combines sentence-level editing, writing statistics and integrations with common online writing tools.

7.3 Free plan · paid from $7.95/user/mo Visit site
9

Correctly

Free plan Extension

Correctly offers in-place writing suggestions with several provider choices, including local options. Users should choose a provider with its text-handling implications in mind.

7.2 Open source Visit site
10

GrammarCheck.net

Free plan ExtensionWeb

Choose GrammarCheck.net for free English proofreading with multiple regional variants and a set of supporting writing tools.

7.2 Free plan Visit site
11

Grammarly
by Grammarly
Free plan AndroidiPhone

Choose Grammarly for a writing toolkit that combines proofreading, rewrites, tone tools, and monthly AI prompts across browser, desktop, and mobile apps.

7.2 Free plan · paid from $12/user/mo Visit site
12

ORFO
by ORFO
Free plan MacWebWindows

ORFO offers deep Russian checking with broader language coverage in higher Windows packages and several document integrations.

7.2 Free plan Visit site
13

QuillBot
by QuillBot
Free plan AndroidExtensioniPhone+3

Choose QuillBot if you want a broad set of writing tools across web, desktop, mobile, and browser extensions, or team administration through a Team Plan.

7.2 Free plan Visit site
14

Sapling

Free plan APIExtensionSelf-hosted+2

Sapling brings team writing tools together with developer APIs, integrations and enterprise deployment options.

7.2 Free plan · paid from $12/user/mo (annual) · 30-day trial Visit site
15

Scribens

Free plan AndroidExtensioniPhone+1

Choose Scribens if you want spelling and grammar checks with explanations, broad language support, and access through web, mobile, or browser extension.

7.2 Free plan Visit site
16

Trinka

Free plan APIExtensionMac+3

Trinka combines academic and technical language tools with document proofreading and integrations.

7.1 Free plan · paid from $20/mo Visit site
17

Poli
by Poli
Free plan ExtensionMac

Pick Poli if you want grammar and translation help that explains its choices, especially if you work in its Chrome extension or macOS app.

7.0 Free plan Visit site
18

Wordeep

Free plan AndroidExtensioniPhone+2

Wordeep combines broad platform coverage with selectable corrections and rewrite suggestions.

7.0 From $13/mo Visit site
19

Wordvice AI

Free plan ExtensionMacWeb+1

Wordvice AI brings proofreading and a broad set of writing tools together, with modes and limits that differ by plan. Check the free submission cap and annual Premium billing against your workload.

7.0 Free plan · paid from $9.95/mo (annual) Visit site
20

Typlx

Free plan ExtensioniPhoneSelf-hosted

Typlx combines offline grammar checking with configurable rules and personal vocabulary. Users considering LLM corrections should note that selected text goes to their configured endpoint.

6.9 Free plan Visit site
21

Writefull

Free plan APIExtensionMac+2

6.9 Free plan Visit site
22

ProWritingAid
by ProWritingAid
Free plan Extension

ProWritingAid combines writing suggestions with reports, integrations, and plagiarism checking. Check the free limits and refund terms against your writing needs before choosing a plan.

6.8 Free plan · paid from $10/mo (annual) Visit site
23

Slick Write

Free plan ExtensionWeb

Slick Write offers grammar and style checks alongside tools for examining sentence structure, quotations, and vocabulary.

6.8 Free plan Visit site
24

SpellBoy
by SpellBoy
Free plan Web

SpellBoy offers a straightforward, free web checker with broad language coverage and style checking.

6.6 Free plan Visit site
25

Write Wise
by Write Wise
Free plan Android

Write Wise offers in-place Android writing help alongside translation, voice-to-text and learning tools.

6.5 Free plan Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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