Grammarly vs QuillBot: Which Writing Tool is Better in 2026?
Grammarly and QuillBot both help you write better, but in very different ways. Here's an honest comparison of features, pricing, and which one is right for you.
Grammarly and QuillBot are both labeled “AI writing tools” — but they solve different problems. Grammarly focuses on catching mistakes and improving clarity. QuillBot specializes in paraphrasing and rewriting text. Understanding that distinction will save you from paying for the wrong tool.
I’ve used both regularly for writing, editing, and content work. Here’s what actually matters.
The Core Difference
Grammarly is an editor. It reads your writing and tells you what’s wrong — grammar mistakes, unclear sentences, weak word choices, inconsistent tone. It’s like having a proofreader looking over your shoulder.
QuillBot is a rewriter. You give it text and it transforms it — different words, different structure, same meaning. Its core use case is paraphrasing: avoiding plagiarism, changing writing style, simplifying complex sentences.
If you want to write better, Grammarly. If you want to rewrite existing text, QuillBot.
Feature Comparison
| Feature | Grammarly | QuillBot |
|---|---|---|
| Grammar & spell check | ✅ Best-in-class | ✅ Solid |
| Paraphrasing | Limited | ✅ Core feature |
| Plagiarism checker | ✅ Pro plan | ✅ Premium plan |
| AI text detection | ✅ Pro plan | ✅ Premium plan |
| AI text humanizer | ❌ | ✅ Premium plan |
| Writing tone analysis | ✅ | Limited |
| Browser extension | ✅ Chrome, Firefox | ✅ Chrome, Edge |
| Word/Google Docs add-in | ✅ | ✅ |
| Languages supported | 1 (English) | 23 paraphrasing, 40+ translation |
Where Grammarly Wins
1. Grammar and Clarity Checking
Grammarly’s core feature is still best-in-class. It catches errors that most grammar checkers miss — misplaced commas, subject-verb disagreement, passive voice overuse, unclear pronoun references. The suggestions come with explanations, which makes it genuinely educational over time.
QuillBot has a grammar checker, but it’s secondary to its paraphrasing features. For pure error-catching, Grammarly is more thorough.
2. Tone Detection
Grammarly shows you how your writing comes across — confident, formal, friendly, direct — and lets you adjust it with a click. This is useful for professional communication where tone matters as much as correctness.
QuillBot offers nine paraphrasing modes (Standard, Fluency, Formal, Academic, etc.) that adjust tone indirectly, but it’s not the same as Grammarly’s real-time tone feedback.
3. Workflow Integration
Grammarly integrates deeply with almost every platform: Gmail, Google Docs, WordPress, LinkedIn, Slack, and more. The browser extension works passively — it just appears wherever you’re typing without you doing anything.
Where QuillBot Wins
1. Paraphrasing Quality
This is QuillBot’s primary strength, and it’s genuinely good at it. Give it a paragraph and it rewrites it in multiple modes — Standard, Fluency, Formal, Simple, Creative, Expand, Shorten, Academic, and Custom. The variations are meaningful, not just synonym swaps.
For students avoiding plagiarism, writers refreshing old content, or non-native English speakers making their writing more natural, QuillBot’s paraphraser is more useful than anything Grammarly offers.
2. Pricing
Grammarly Pricing (March 2026):
| Plan | Price | Best For |
|---|---|---|
| Free | €0/month | Basic grammar checking |
| Pro | €12/month | Full features, individuals |
| Enterprise | Custom | Organizations |
QuillBot Pricing (March 2026):
| Plan | Price | Best For |
|---|---|---|
| Free | €0/month | Basic paraphrasing (125 words) |
| Premium | €8.33/month (annual) | Unlimited paraphrasing |
| Team | Custom | Organizations |
QuillBot Premium at €8.33/month is noticeably cheaper than Grammarly Pro at €12/month. For budget-conscious users, QuillBot’s free tier is also more generous — you can paraphrase 125 words at a time without paying.
3. AI Humanizer
QuillBot Premium includes an AI text humanizer — it rewrites AI-generated content to read more naturally and pass AI detection tools. Grammarly doesn’t offer this. For anyone working with AI-generated drafts, this is a meaningful differentiator.
4. Multilingual Support
QuillBot supports paraphrasing in 23 languages and translation into 40+. Grammarly only works in English. For non-English writers, this is a significant advantage.
Free Tier Comparison
| Feature | Grammarly Free | QuillBot Free |
|---|---|---|
| Grammar check | ✅ Basic | ✅ Basic |
| Paraphrasing | ❌ | ✅ (125 words) |
| Plagiarism check | ❌ | ❌ |
| AI detection | ❌ | ✅ Limited |
| Word limit | Unlimited text | 125 words per paraphrase |
Both free tiers are genuinely useful as starting points.
Who Should Choose Grammarly
- Professional writers who want real-time feedback while typing
- Business communication — emails, reports, presentations
- Native English speakers focused on clarity and style
- Teams that need consistent writing quality across members
- Anyone writing primarily in English across multiple platforms
Who Should Choose QuillBot
- Students who need to paraphrase sources or academic content
- Content creators refreshing or repurposing existing articles
- Non-native English speakers who want to improve fluency
- Anyone working with AI-generated content who needs the humanizer
- Budget-conscious users — more value per euro
Can You Use Both?
Yes, and many writers do. They’re complementary tools:
- Write → QuillBot helps structure and rephrase
- Edit → Grammarly catches errors and improves clarity
- Publish → QuillBot humanizes if needed
At combined costs of ~€20/month, this is actually cheaper than many standalone AI writing tools.
Verdict
For grammar and professional editing: Grammarly wins. It’s more thorough, better integrated, and provides real-time feedback that actually improves your writing over time.
For paraphrasing, rewriting, and multilingual use: QuillBot wins. It’s cheaper, has a better free tier, and its paraphrasing capabilities are genuinely superior.
| Category | Winner |
|---|---|
| Grammar checking | Grammarly |
| Paraphrasing | QuillBot |
| Pricing | QuillBot |
| Integrations | Grammarly |
| Multilingual | QuillBot |
| AI humanizer | QuillBot |
| Overall for professionals | Grammarly |
| Overall for students | QuillBot |
Rating: Grammarly 4/5 | QuillBot 4/5
Both tools earn their place. Pick based on your primary use case — or use both.
Pricing verified March 2026. Prices shown in EUR and may vary by region.
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