Compare 3 options for tasks you use Corrector App for. Their feature coverage differs; check the summaries and plan details. Free AI grammar and spelling checker for 27+ languages
| Tool | Pricing | Score | API | Ongoing free tier | Self-hosting |
|---|---|---|---|---|---|
| Corrector Appthis one Free AI grammar and spelling checker for 27+ languages | Free | 11 | Unknown | Yes | No |
| LanguageTool AI grammar checker and style editor for 30+ languages | Freemium | 21 | Yes | Yes | Yes |
| Grammarly Writing correction and AI assistance everywhere you type. | Freemium | 180 | Yes | Yes | No |
| NeuroSpell Deep learning spell-checker for 40+ languages | Contact | 6 | Yes | Unknown | No |
LanguageTool uses artificial intelligence to detect and correct grammar, spelling, punctuation, and style issues across your writing. It works as a browser extension, desktop app, or integrates into common writing platforms. From casual emails to professional documents, it catches errors and suggests improvements that a basic spell-checker would miss.
Grammarly checks grammar, tone and clarity in every text box on your computer — email, docs, Slack, browser. Its AI features rewrite, expand and reply for you while keeping your voice, and enterprise plans add brand style guides.
NeuroSpell is a deep learning-powered auto-correction tool that handles typos, phonetic mistakes, and grammar across 40+ languages. Unlike rule-based checkers, its neural approach understands context and non-native speaker patterns, making it effective for multilingual writing. It deploys on-premises without external data transmission and supports custom training for domain-specific vocabularies.