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Grammar checker comparisons

Grammarly vs. LanguageTool

Integrations, team features and security side by side, then each product's plans, pros and cons.

Feature comparison of Grammarly, LanguageTool and Sapling
Feature Grammarly LanguageTool Sapling
Integrations
Microsoft Word YesYesYes
Microsoft Outlook NoNoYes
Google Docs YesYesYes
Products and features
Style guide YesNoYes
Tone prediction YesNoYes
Autocomplete NoNoYes
Snippets / macros YesNoYes
Suggested responses NoNoYes
Customization
Built for sales NoNoYes
Built for support NoNoYes
Multiple languages NoYesYes
Custom models NoNoYes
Security
HIPAA YesYesYes
SOC 2 Type II YesNoYes
API access NoYesYes
Self-hosting NoYesYes

Sapling is shown for reference.

Grammarly

Grammarly is an extremely popular cloud-based writing assistant that provides spelling and grammar checking across a number of applications. Grammarly also provides a tone prediction tool and a plagiarism checker along with an editor on its website.

Screenshot of example edits by Grammarly

Plans

  • Free version is meant for casual writing as it only provides basic writing suggestions for spelling, grammar, punctuation, and conciseness
  • Premium version is meant for students or working professionals and includes a lot more features such as tone adjustments, advanced suggestions, and word choice
  • Enterprise plan is meant for accounts with 50+ users and gives team management tools such as style guide, snippets, and analytics dashboard

Pros

  • The most well-known and widely used grammar application
  • Clean and easy-to-use integration UI
  • Website editor with additional checking functionality
  • Includes plagiarism checker to check writing assignments against 16 billion webpages

Cons

  • Not focused on business use cases
  • Currently only supports English
  • Frequently suggests rule-based recommendations
  • Does not provide direct API access

Reviews

Grammarly has 41,641 reviews and 10,000,000+ users on their Chrome Web Store with an average rating of 4.5 stars out of 5 (as of May 2022)

LanguageTool

LanguageTool is a multilingual grammar and spell checker. It includes an open-source edition as well as a premium business edition. The key languages support included English, German, Spanish, French, and Portuguese.

Screenshot of example edits by LanguageTool

Plans

  • Free version provides basic grammar, punctuation, and style checking
  • Premium version has enhanced grammar, punctuation, and style checking as well as suggestions to improve style and tone, add-in for Microsoft Word, and add-on for Google Docs
  • Enterprise version provides everything the premium version does along with user management

Pros

  • Can detect of incorrect names and titles in e-mails as well as incorrect numbers
  • Supports multiple languages
  • Separately there exists an open-source offering

Cons

  • Free version only provides checking for 10,000 characters of text
  • Premium version only allows up to 100,000 characters per text field
  • Grammar checker has limited capabilities as it has rule-based recommendations
  • Not focused on business use cases

Reviews

LanguageTool has 7,370 ratings and 1,000,000+ users on their Chrome Web Store with an average rating of 4.8 stars out of 5 (as of May 2022)

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