Grammarly vs GPTZero vs Copyleaks vs LanguageTool

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

Your tool
Grammarly
vs
Competitor 1
GPTZero
Competitor 2
Copyleaks
Competitor 3
LanguageTool
Compare
4 tools · best value per row highlighted
Your tool Grammarly
grammarly.com
Writing confidence that follows you everywhere
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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 Copyleaks
copyleaks.com
Copyleaks is a content authenticity platform that checks whether text was written by AI and whether it copies existing sources.
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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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Traffic estimated monthly website traffic
Monthly visits
49.3Mvisits/mo
11Mvisits/mo
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MoM change
▲ 10.8%
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6-month growth
-22.5%
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Global rank web
#688
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Avg. last 3 months
46.5M
11M
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Bounce rate lower is better
40%
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Pages / visit
7.8
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Visit duration
4m 41s
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Traffic sources
● Direct 85% · ● Referral 9%
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GrammarlyGPTZeroCopyleaksLanguageTool
015.9M31.8M47.7M63.6MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MGPTZero · 11M10M100MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MGPTZero · 11MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Paid
Free
Starting price
$12per month · free tier available
$12.99per month · free tier available
$13.99per month
Free
Free tier
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Free trial
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API access
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Plans
Free FreePro Custom/moEnterprise Custom/mo
Free FreePremium $12.99/moProfessional $24.99/mo
Personal $13.99/moPro $74.99/moEnterprise CustomEducation Custom
Free Free
Capabilities input → output
Input
Text
DocumentsText
CodeDocumentsImagesTextVideo
Text
Output
Text
DataText
Data
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
AI Detection & SafetyAI DetectorAI Plagiarism Checker
AI Detection & SafetyAI DetectorAI Image DetectorAI Plagiarism Checker
Writing & ContentAI Grammar CheckerAI RewriterAI Writing Assistants
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
6
7
10
10
Grammar checking
Plagiarism detection
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Detection
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AI authorship detection
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Paraphrasing
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Content detection
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Proofreading
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Writing
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Content authenticity verification
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Hallucination detection
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Multilingual grammar assistance
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APIs
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Content moderation
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Deepfake detection
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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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Image authenticity analysis
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Multilingual writing assistance
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Spanish text correction
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 1
▲ 0
▲ 0
Saves
0
0
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0
Reviews
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.