Paste your text with grammar or spelling errors into the input box.
Click Fix Grammar — the AI scans and corrects all errors instantly.
Review the corrected text with all changes applied.
Copy the corrected version for your document, email, or post.
For additional improvement, run the corrected text through the Text Improver tool.
⚡ Key Features
Fixes spelling mistakes, typos, and incorrect word usage
Corrects subject-verb agreement, tense consistency, and article usage
Fixes punctuation: commas, apostrophes, quotation marks, and semicolons
Improves sentence structure for readability and clarity
More powerful than basic checkers — fixes complex contextual errors
Supports US, UK, and Australian English variants
👥 Who Uses This Tool
StudentsNon-native English SpeakersProfessionalsEmail WritersContent CreatorsJob Applicants
Frequently Asked Questions
InfinityKit Grammar Fixer uses Google Gemini which understands context deeply. It catches complex grammatical errors that rule-based tools miss — including contextual errors, tense shifts, and nuanced style issues.
Yes — it corrects all punctuation including missing commas, incorrect apostrophes, run-on sentences, semicolon misuse, and quotation mark formatting.
Absolutely. The Grammar Fixer is especially useful for ESL learners who struggle with articles, prepositions, irregular verbs, and sentence structure patterns.
The Grammar Fixer corrects errors while preserving your voice. It does not significantly rewrite your content — only fixes mistakes. Use the Text Improver if you want your style enhanced.
Up to 30,000 characters — about 5,000 words. For longer documents, split into sections for the most thorough grammar check.