AI Tools
PremiumFix Grammar (AI)
Premium AI grammar, spelling, punctuation, and clarity correction with strict request limits.
About the AI grammar checker
Paste a draft and the AI sends back a corrected copy. It fixes grammar, spelling and punctuation and makes unclear sentences read naturally, with particular attention to subject-verb agreement, consistent tenses, commas, apostrophes, sentence fragments and run-on sentences. You get clean text to copy, not a list of suggestions to click through. Because the result is only the corrected text, there are no highlights or explanations. To see exactly what changed, paste your original and the corrected version into Compare Two Texts, which marks every added and removed word. That is also the fastest way to catch an edit you don't agree with. It is a premium tool: a free account includes one lifetime trial request, and after that Basic gives 200 AI requests a month and Pro 500. Input is capped at 1,500 tokens, counted as characters divided by three with the instructions included, which comes to about 4,000 characters or roughly 650 words. Your text goes to Astroworld's server and an AI language model, and signed-in requests appear in your account history with their first 80 characters.
Frequently asked questions
Will it follow British or American English?
There is no setting for it, and the instructions don't ask for either spelling. Check words such as colour and color, or organise and organize, in the result and fix any that changed.
Does it explain why?
No. It returns only the corrected text. Put the before and after versions into Compare Two Texts to see each change, then look up any rule you're unsure about.
Will it change my meaning or tone?
It is told to fix errors and make the text read naturally, so beyond corrections it may rephrase a clumsy sentence. Compare the result with your original, especially for legal, medical or technical wording where a small change matters.
How is this different from the spell check in my browser?
A browser spell checker flags words it doesn't recognize. This tool reads whole sentences, so it can also catch a correctly spelled wrong word, like their instead of there, a missing comma or a verb that doesn't agree with its subject.