Grammarly vs LanguageTool vs GPTZero vs QuillBot

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Grammarly
vs
Competitor 1
LanguageTool
Competitor 2
GPTZero
Competitor 3
QuillBot
Compare
4 tools · best value per row highlighted
Your tool Grammarly
grammarly.com
Writing confidence that follows you everywhere
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Competitor LanguageTool
languagetool.org
LanguageTool checks grammar, spelling, punctuation, casing and style as you write, and works in more than 30 languages and dialects, including English, German, Portuguese, Spanish, French and Dutch.
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Competitor GPTZero
gptzero.me
Used by over 10 million teachers and students across more than 100 countries, GPTZero detects AI-generated text across major language models while providing a suite of writing verification tools
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Competitor QuillBot
quillbot.com
Rephrase until it sounds right
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Traffic estimated monthly website traffic
Monthly visits
49.3Mvisits/mo
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11Mvisits/mo
31.4Mvisits/mo
MoM change
▲ 10.8%
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▼ 8.4%
6-month growth
-22.5%
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-27.9%
Global rank web
#688
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#1,318
Avg. last 3 months
46.5M
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11M
36.7M
Bounce rate lower is better
40%
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46%
Pages / visit
7.8
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5.5
Visit duration
4m 41s
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2m 52s
Traffic sources
● Direct 85% · ● Referral 9%
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● Direct 76% · ● Referral 22%
GrammarlyLanguageToolGPTZeroQuillBot
015.9M31.8M47.7M63.6MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MGPTZero · 11MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4M10M100MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MGPTZero · 11MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
Freemium
Freemium
Starting price
$12per month · free tier available
Free
$12.99per month · free tier available
$19.95per month · free tier available
Free tier
Free trial
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API access
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Plans
Free FreePro Custom/moEnterprise Custom/mo
Free Free
Free FreePremium $12.99/moProfessional $24.99/mo
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Capabilities input → output
Input
Text
Text
DocumentsText
DocumentsImagesText
Output
Text
Text
DataText
DocumentsImagesSlidesText
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
Writing & ContentAI Grammar CheckerAI RewriterAI Writing Assistants
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+5 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
6
10
7
9
Grammar checking
Paraphrasing
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Detection
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Plagiarism detection
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Writing
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Proofreading
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AI authorship detection
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Content detection
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Hallucination detection
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Multilingual grammar assistance
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Summarizing
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Content authenticity verification
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Document summarization
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Dutch text correction
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French grammar checking
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French text correction
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Multilingual writing assistance
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Spanish text correction
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Undetectable content writing
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 1
▲ 2
Saves
0
0
0
0
Reviews
0
0
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Prompts
0
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Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.