Writing Tools

Catch every grammar error — and understand why it's wrong

Paste your text and get a detailed breakdown of every grammar, spelling, punctuation, and style error — with clear explanations for each fix so you actually learn from them.

4
Error categories checked
3,000
Max words per check
2–5
Credits per check
<20s
Average check time

What is the AI Grammar Checker?

TextCharm's Grammar Checker goes beyond simple spell-check. It reads your text the way an experienced editor would — identifying grammar errors, spelling mistakes, punctuation problems, and style issues, then explaining exactly why each one needs to be corrected.

Every fix comes with a plain-English explanation, so you're not just fixing the document in front of you — you're building a better instinct for the mistakes you tend to make. It's the difference between a tool that patches errors and one that actually makes you a stronger writer.

  • Grammar errors caught and corrected with full explanations
  • Spelling mistakes identified — including contextual errors spell-check misses
  • Punctuation issues flagged: commas, apostrophes, colons, and more
  • Style suggestions: passive voice, wordiness, weak phrasing
  • Every correction explained — not just fixed

How it works

A full grammar check with explanations in three steps.

1

Paste your text

Paste any text — an email draft, a blog paragraph, a report section, a cover letter, or an essay. The checker handles up to 3,000 words in a single pass.

2

Run the check

Click Check Grammar and the AI scans your text for grammar, spelling, punctuation, and style errors. Each issue is identified, categorized, and explained clearly.

3

Review and apply fixes

Browse the list of corrections with their explanations. Copy the corrected text or export as TXT and paste it back into your document, email, or editor — error-free.

Flexible pricing based on text length

Only pay for what you need — shorter texts cost fewer credits.

Short Text
Up to 500 words
2 credits

Ideal for emails, short blog sections, social captions, product descriptions, and any single-topic writing under half a page.

Typical use cases
  • Professional email or reply
  • Cover letter opening section
  • Short blog or social caption
Long Text
Up to 3,000 words
5 credits

For longer documents — detailed reports, long-form essays, white papers, and any content that benefits from a single comprehensive grammar pass.

Typical use cases
  • Long-form article or white paper
  • Academic essay or thesis chapter
  • Executive report or proposal

More than a grammar fixer

Built for writers who want to understand their errors, not just remove them.

Every Error Explained

Each correction comes with a plain-English explanation — what the rule is and why your original phrasing broke it. You'll see the same mistakes less and less over time.

Four Error Categories

Grammar, spelling, punctuation, and style are each checked independently, so you can see exactly where your writing tends to break down.

Contextual Spelling

Standard spell-checkers miss words that are spelled correctly but used wrong — "their" vs "there", "affect" vs "effect". This checker catches them because it reads for meaning, not just letters.

Style & Clarity Improvements

Beyond correctness: passive voice, nominalizations, filler phrases, and weak constructions are flagged so your writing is not just error-free but genuinely stronger.

Up to 3,000 Words Per Check

Long enough to handle full blog posts, report sections, cover letters, and short essays in a single check — no need to split your document into fragments.

Multilingual Support

Check grammar in 27 languages. Write, correct, and polish your text without switching tools or relying on a separate translation step.

Who uses the Grammar Checker?

Anyone who writes and needs their text to be correct — the first time.

Writers & Bloggers

Publish with confidence. Run your post through the checker before it goes live and catch the errors a tired eye misses after hours of drafting.

Business Professionals

Emails, reports, proposals, and client communications all reflect your professionalism. A quick grammar check ensures they always do it justice.

Students & Academics

Submit essays, papers, and applications with the grammar errors removed — and use the explanations to build better writing habits before the next assignment.

Non-Native English Speakers

English grammar rules can be counterintuitive. The checker catches errors that feel natural in other languages and explains why English works differently — a fast way to close the gap.

Frequently asked questions

The checker handles up to 3,000 words (approximately 18,000 characters) in a single check. For longer documents, split them into sections of 3,000 words or fewer and check each part separately.

The checker identifies four categories of issues: grammar errors (subject-verb agreement, tense consistency, sentence structure), spelling mistakes (including contextual errors a basic spell-check misses), punctuation problems (commas, apostrophes, colons, semicolons), and style issues (passive voice, filler words, weak phrasing, wordy constructions).

It explains every error. Each correction includes a reason — the grammar rule that applies, why the original phrasing is incorrect, and what the fix achieves. This makes the tool useful not just for cleaning up a document but for understanding recurring mistakes.

No — the corrections address errors only. The meaning, argument, and voice of your original text are preserved. Grammar corrections fix the mechanics; they don't rewrite what you're saying. For tone or style changes, see the Paragraph Rewriter tool.

Credits are based on the length of your text: 2 credits for texts up to 500 words, 3 credits for texts up to 1,500 words, and 5 credits for texts up to 3,000 words. The cost is calculated automatically based on your actual word count when you run the check.

Yes — every new account receives free credits on sign-up, no payment or credit card required. You can use those credits to generate real content, test different lengths and tones, and get a feel for the tool before choosing a plan. When your free credits run out, you can subscribe to a plan or top up with a one-time credit pack at any time.

This tool supports all languages listed below. Simply select your preferred language in the settings before generating.
English Français Español Deutsch Português (Brasil) Português (Portugal) Italiano Nederlands Polski Română Svenska Dansk Norsk Suomi Čeština Magyar Български Українська Русский Türkçe العربية 中文 日本語 한국어 हिन्दी ภาษาไทย Tiếng Việt Bahasa Indonesia

Write it right — every time

Grammar errors undermine your credibility, even when the ideas are strong. TextCharm catches every mistake and explains every fix — so your writing is always ready to send.

No credit card required. Free credits included on sign-up.