Fix grammar, spelling and punctuation. Improve, paraphrase or simplify any text instantly. Free, no signup required.
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Grammar Fix
Fix errors & mistakes
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Improve Writing
Make it more professional
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Paraphrase
Rewrite differently
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Simplify
Make it easier to read
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Make Formal
Professional tone
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Make Shorter
Concise & to the point
✍️ Your Text0 words
✅ Corrected Text
Analyzing your text...
📋 What Was Improved
Free AI Grammar Checker & Text Improver
ToolsRhino's AI grammar checker uses advanced artificial intelligence to instantly detect and fix grammar errors, spelling mistakes and punctuation issues in any text. Whether you are writing an email, essay, proposal or social media post — our AI makes sure your writing is polished and professional.
Beyond just fixing errors, you can also use it to improve writing quality, paraphrase content in a different style, simplify complex text for easier reading, make writing more formal for business communication, or shorten lengthy text to be more concise.
Is this grammar checker really free?+
Yes — 100% free with no word limits, no signup and no subscription. ToolsRhino is supported by advertising so all tools remain free for everyone.
What is the difference between Fix Grammar and Improve Writing?+
Fix Grammar corrects errors while keeping your original words and style as much as possible. Improve Writing goes further — it enhances vocabulary, sentence structure and flow to make the text significantly better overall.
Can it fix Urdu-English mixed grammar mistakes?+
Yes — the AI understands Pakistani English and can fix common grammar mistakes made by Urdu speakers including article usage, verb tenses, prepositions and sentence structure.
Is my text kept private?+
Your text is sent to the AI for processing but is not stored, logged or shared. Each request is independent and nothing is retained after processing.