Compare tools
Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
⇄ Comparison dimension — pick the market you're actually shopping in
✕
Originality AI
✓ verifiedPaid
Content-integrity suite pairing an accurate AI-text detector with plagiarism, fact, and readability checks.
2.4M visits/mo13K saves
✕
ZeroGPT
✓ verifiedFreemium
All-in-one AI writing suite led by an AI content/GPT detector, bundling a humanizer, paraphraser, grammar checker, translator, and chatbot.
26M visits/mo3.4K saves
✕
AI Content Detection
✓ verifiedFree
Free AI content detector for text, images and PDFs that estimates AI vs human probability with sentence-level analysis, no signup.
486 visits/mo
✕
ZeroGPT.Tools
✓ verifiedFree
Free, no-signup AI content detector that scores ChatGPT, Gemini, Claude, and other AI text, with a Chrome extension for webpage checks.
90K visits/mo
Pricing
Pro: $14.95/month (2,000 credits/mo)
Enterprise: $179/month (15,000 credits/mo)
Free: $0 forever
No public pricing
No public pricing
Core features
- ✦AI-content detector with sentence-level highlighting
- ✦Plagiarism checker
- ✦Fact, grammar, and readability checkers
- ✦Chrome extension with writing replay
- ✦Team management and API access
- ✦Multi-model AI text detector (ChatGPT, GPT-5, Gemini, Claude, DeepSeek, etc.)
- ✦AI text humanizer to reduce detectability
- ✦Plagiarism checker across billions of sources
- ✦AI paraphraser, summarizer, and grammar checker
- ✦AI translator and word counter utilities
- ✦ZeroCHAT general-purpose AI chatbot
- ✦WhatsApp and Telegram bot access
- ✦Downloadable PDF detection reports and batch file upload
- ✦Free AI text detection with probability scores
- ✦Sentence-level AI highlighting
- ✦AI image detection
- ✦AI PDF document detection
- ✦No signup, in-browser processing
- ✦Download results as PDF
- ✦Free AI content detection, no signup required
- ✦Supports detection across many AI models (ChatGPT, Gemini, Claude, Copilot, etc.)
- ✦Sentence-level DeepScan highlighting
- ✦File upload for document checks
- ✦Chrome extension for in-browser checking
- ✦Up to 2,000 words per scan
Use cases
- →Detect AI-generated text in submissions
- →Check content for plagiarism
- →Verify facts before publishing
- →Prove authorship of original writing
- →Run content QA at scale for agencies
- →Educators checking student submissions for AI-generated content
- →Writers verifying and humanizing AI-assisted drafts
- →Checking text for plagiarism before publishing
- →Businesses integrating AI detection via API
- →Quick grammar/translation checks while writing
- →Checking text for AI-generated content
- →Verifying images or PDFs
- →Quick, free AI checks without an account
- →Quickly checking if an article was AI-written
- →Verifying student assignments for AI content
- →Screening web content while browsing via the Chrome extension
- →Free alternative to paid AI detectors
Visit