AI Grammar Checker

AI Grammar Checker Features

• Spell check — AI catches misspelled words, typos, and commonly confused pairs like their/there, its/it's, loose/lose — each error shown with the correct spelling and a brief explanation.
• Grammar correction — Detects subject-verb disagreement, incorrect verb tense, wrong article usage, misplaced modifiers, and other grammar errors that a basic spell check misses entirely.
• Punctuation checker — Finds missing commas, incorrect apostrophes, misused semicolons, and other punctuation problems — with clear guidance on the correct rule.
• Spell check from photo — Upload a photo of handwritten text, a printed document, or a screenshot — AI reads the image and performs grammar check and spell check on the extracted text automatically.
• Sentence structure check — Identifies run-on sentences, fragments, awkward phrasing, and unclear pronoun references so your writing flows naturally and reads clearly.
• Rule explanations — Each correction comes with an explanation of the grammar or spelling rule — so you understand the mistake and avoid repeating it.

How to Check Spelling and Grammar Online

1. Paste your text into the input field, or upload a photo of a handwritten note, printed page, or screenshot.
2. Choose Quick mode for instant spell check or Accurate mode for a thorough grammar and style review with detailed explanations.
3. The AI grammar checker scans your text and highlights every spelling, grammar, and punctuation error.
4. Review corrections and explanations — each fix shows the grammar rule or spelling standard behind it.
5. Copy the corrected text or ask follow-up questions about specific errors to deepen your understanding.

How AI Spell Check and Grammar Check Work

Unlike a basic spell checker that compares words to a dictionary, our AI grammar checker understands the meaning and context of your entire sentence. It detects errors that simple tools miss: homophones used in the wrong context, subject-verb disagreements buried in long clauses, punctuation missing between dependent clauses. The spelling and grammar check is powered by large language models trained on billions of sentences, giving it the ability to flag errors in complex professional writing just as effectively as in a short text message. When you upload a photo, OCR technology first extracts the text, then the same thorough grammar check is applied. Results arrive in seconds. The tool works for English text of any length — from a quick email to a long essay — and the check is completely free.

What You Can Check

• Emails and messages — Run a grammar check on business emails, cover letters, and client messages before sending — catch errors that autocorrect misses.
• Essays and academic writing — Check spelling, grammar, and sentence structure in student essays, research papers, and written assignments before submission.
• Social media posts — Spell check captions, tweets, and posts for embarrassing typos — the grammar checker works on short texts just as well as long ones.
• Handwritten text from photo — Upload a photo of handwritten notes, homework, or any printed document — the AI reads the text and performs a full spell check and grammar check.
• Professional documents — Resumes, reports, proposals, and contracts — ensure zero spelling and grammar errors in any professional document.

Spell Check and Grammar Checker FAQ

See Also

• Punctuation Check — Place Commas Correctly
• AI Chat — Ask About Grammar Rules
• All AI Text Tools
• AI Study Tools