Grammarly vs QuillBot vs LanguageTool vs StealthGPT

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

Your tool
Grammarly
vs
Competitor 1
QuillBot
Competitor 2
LanguageTool
Competitor 3
StealthGPT
Compare
4 tools · best value per row highlighted
Your tool Grammarly
grammarly.com
Writing confidence that follows you everywhere
Remove
Competitor QuillBot
quillbot.com
Rephrase until it sounds right
Make main Remove
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.
Make main Remove
Competitor StealthGPT
stealthgpt.ai
StealthGPT is an AI humanizer and writing assistant that rewrites generated text so it reads naturally and avoids detector flags.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
49.3Mvisits/mo
31.4Mvisits/mo
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MoM change
▲ 10.8%
▼ 8.4%
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6-month growth
-22.5%
-27.9%
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Global rank web
#688
#1,318
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Avg. last 3 months
46.5M
36.7M
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Bounce rate lower is better
40%
46%
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Pages / visit
7.8
5.5
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Visit duration
4m 41s
2m 52s
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Traffic sources
● Direct 85% · ● Referral 9%
● Direct 76% · ● Referral 22%
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GrammarlyQuillBotLanguageToolStealthGPT
015.9M31.8M47.7M63.6MGrammarly · 58.8MGrammarly · 54.5MGrammarly · 55.9MGrammarly · 55.7MGrammarly · 63.6MGrammarly · 58.3MGrammarly · 54MGrammarly · 45.8MGrammarly · 44.5MGrammarly · 49.3MQuillBot · 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 · 49.3MQuillBot · 59.8MQuillBot · 47MQuillBot · 42.9MQuillBot · 43.5MQuillBot · 49.6MQuillBot · 48.1MQuillBot · 44.6MQuillBot · 34.3MQuillBot · 31.4MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Free
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Starting price
$12per month · free tier available
$19.95per month · free tier available
Free
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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
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Free Free
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Capabilities input → output
Input
Text
DocumentsImagesText
Text
Text
Output
Text
DocumentsImagesSlidesText
Text
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+4 more
AI Detection & SafetyWriting & ContentAI DetectorAI Grammar Checker+5 more
Writing & ContentAI Grammar CheckerAI RewriterAI Writing Assistants
AI Detection & SafetyAI DetectorHumanizer AI
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
6
9
10
9
Paraphrasing
Writing
Grammar checking
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Proofreading
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Detection
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Plagiarism detection
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Undetectable content writing
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Humanizing AI text
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Text humanization
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Bypassing AI content detection
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Multilingual grammar assistance
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Summarizing
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Citation formatting
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Content detection
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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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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 2
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
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.