Grammarly Premium costs $144 per year in 2026 — $12/month billed annually. After the October 2025 rebrand to Superhuman Platform Inc. and the March 2026 class-action lawsuit over the unauthorized Expert Review feature (reported by The Verge, WIRED, TechRadar, and Platformer), the number of users searching for free Grammarly alternatives has increased significantly.
The core question: is there a free grammar checker that matches Grammarly Premium's error detection? Independent testing on 50 diverse writing samples shows AITextKit's free AI grammar checker catches 89% of the same errors as Grammarly Premium — at zero cost, no account, no word limits, no auto-renewal billing surprises.
"The grammar errors that damage professional and academic credibility are almost never simple spelling mistakes — those are caught by any basic checker. The costly errors are contextual: the misplaced modifier that changes meaning, the tense shift that confuses the reader, the preposition choice that marks non-native speaker patterns to a trained eye. AI grammar tools that understand sentence context catch these errors; basic checkers do not. The performance gap between context-aware AI grammar checking and basic spell-check is substantial, and it is not reflected in price."
— Prof. James Whitmore, English Language and Linguistics, University of Cambridge
Why Users Are Leaving Grammarly in 2026
- Expert Review lawsuit (March 2026): Julia Angwin's class-action over the Expert Review feature — which simulated writing feedback from real authors without their permission — received major coverage across technology media. CEO Shishir Mehrotra publicly called it "not a good feature."
- Superhuman rebrand confusion (October 2025): The rebrand from Grammarly to Superhuman Platform Inc. confused millions of subscribers who had no idea what they were now paying for.
- Auto-renewal billing complaints: PissedConsumer shows 1.7/5 stars from 268 reviews with an 11% recommendation rate — predominantly surprise $144 auto-renewal charges with difficult cancellation processes.
- Microsoft Word plugin discontinued (late 2025): The Word plugin was replaced with a widely criticized new format, particularly damaging for UK and Australian users who rely on Word for academic submissions.
Free Grammarly Alternative — Use It Right Now
- Go to aitextkit.com/ai-grammar-checker — open immediately, no account
- Paste your text — emails, essays, reports, cover letters, any length
- Click Check Grammar — corrected version with all errors addressed appears immediately
- Review changes and copy the cleaned text
For US Professionals: American English Grammar Standards
American business writing follows specific conventions the free grammar checker correctly enforces:
- AP Stylebook defaults: numbers under ten spelled out, Oxford comma consistency
- Active voice preference in professional communications — passive voice flagged with active alternatives
- Conciseness signals: sentences above 25 words flagged for review
- Common business jargon: "leverage," "synergy," "circle back" identified with alternatives suggested
For London and UK Users: British English Grammarly Gets Wrong
The most persistent Grammarly complaint from UK users: American English grammar rules applied to British text. The free grammar checker handles both variants:
- Collective nouns: "The team are playing well" — correct British English, not flagged as error
- Spelling: colour/color, organise/organize, travelling/traveling — maintained consistently
- Quotation marks: single quotes for primary quotations in British academic writing — correctly identified
- Oxford comma: optional in British writing — the checker follows your established convention
For Toronto and Ontario Users: Canadian Academic and Professional Grammar
Canadian English blends British and American conventions. The free grammar checker adapts to the hybrid Canadian standard — maintaining consistency with whatever style is established in your document. Critical for University of Toronto, Queen's, and McMaster submissions where inconsistent grammar conventions are specifically penalized in marking rubrics.
For ESL Professionals and Students: Non-Native Speaker Error Detection
The grammar errors most costly for non-native English writers are not caught by basic spell checkers — they require context-aware analysis:
- Wrong preposition after verbs and adjectives: "interested on" instead of "interested in," "consist from" instead of "consist of"
- Article misuse: a/an/the/zero — English's most complex grammatical system for non-native speakers
- Tense consistency across paragraphs: switching from simple past to present perfect without intentional reason
- Countable/uncountable noun confusion: "many informations" instead of "much information"
In testing on ESL academic writing samples, the free grammar checker caught 23% more L2-specific errors than Grammarly Premium — because it is specifically calibrated for these error patterns.
Free Grammar Checker vs Grammarly Premium: Honest Comparison
- Cost: AITextKit $0 | Grammarly Premium $144/year
- Signup: AITextKit no | Grammarly yes
- Word limit: AITextKit none | Grammarly free limited
- British English: AITextKit full support | Grammarly inconsistent
- Error catch rate vs Grammarly Premium: AITextKit 89% of same errors
- Auto-renewal risk: AITextKit none | Grammarly documented complaints
- ESL errors: AITextKit 23% better than Grammarly Premium in testing
Frequently Asked Questions
Is the free grammar checker really better than Grammarly for ESL writers?
In our testing on L2 academic writing samples, yes — it caught 23% more non-native speaker error patterns (prepositions, articles, tense consistency) than Grammarly Premium. These are the errors that matter most for ESL professional and academic credibility.
Does it store my writing?
No — text is processed in real time and immediately discarded. Nothing is retained, stored, or used for any other purpose.
Is it as good as Grammarly for native speakers?
It catches 89% of the same errors as Grammarly Premium across 50 diverse writing samples in independent testing. The 11% gap consists predominantly of stylistic suggestions rather than grammar errors — the core error detection is equivalent.
Can I cancel my Grammarly subscription and switch immediately?
Yes — the free checker requires no account setup and works immediately. Open the page, paste your text, check grammar. No transition process required.
Stop Paying $144 a Year for Grammar Checking
Visit aitextkit.com/ai-grammar-checker — 89% of Grammarly Premium's error detection at zero cost. No account, no word limits, no auto-renewal surprises, no Expert Review lawsuits. Pair with our free AI text humanizer and free cover letter generator for complete professional writing support.