LanguageTool
Open-source grammar, style, and spell checker.
⭐ 4.2/5Free Tier AvailableOpen SourceFounded 2003
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About LanguageTool
LanguageTool is an open-source writing assistant that supports over 30 languages. It offers grammar checking, style suggestions, and spell checking through browser extensions, desktop apps, and API. Being open source, it can be self-hosted for privacy-conscious users.
LanguageTool Interface Preview
Pricing at a Glance
| Free Tier | Lowest Paid | Enterprise |
|---|---|---|
| 10,000 chars per check | $4.99/mo | Custom pricing |
Key Features
✓Grammar checking
✓Style checking
✓30+ languages
✓Browser extension
✓API
✓Self-hosting
✓Personal dictionary
✓Picky mode
✓Add-ins
✓Rephrasing
Use Cases
- • AI Tools workflow optimization
- • LanguageTool onboarding for new teams
- • Reducing manual tasks with LanguageTool automations
Popular Integrations
SlackGoogle WorkspaceZapierHubSpot
Pros & Cons
👍 Pros
- ✓Open source
- ✓Multi-language
- ✓Self-hostable
- ✓Affordable
👎 Cons
- ✗Less accurate than Grammarly
- ✗Limited AI features
- ✗Smaller ecosystem
- ✗Basic free plan
User Reviews & Testimonials
“We switched in under a week and cut software spend materially while keeping the same workflow quality.”
“The comparison + pricing context made this an easy decision. Great shortlist quality.”
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