Prompt Injection Scanner — Free Online Tool
Scan user input for jailbreak patterns
Scan user input for prompt injection attacks before feeding to LLM. Detects common jailbreak + bypass patterns.
📚 Learn more
Prompt injection scanner
First-layer defense: scan user input for injection attacks before your LLM sees it.
How to use this tool
- 1
Paste user input
Or any text you want to feed to an LLM.
- 2
See detected patterns
Injection attempts, jailbreak tokens, role-override attacks.
- 3
Check risk score
Act before feeding to your LLM pipeline.
Frequently Asked Questions
What counts as prompt injection?
How reliable is pattern matching?
False positives?
Key Takeaways
- Prompt Injection Scanner is a free, browser-based ai tool — scan user input for jailbreak patterns.
- No signup, no downloads, no file uploads — your data stays on your device.
- Works on desktop, tablet, and mobile. Install as a PWA for offline access.
How to Use Prompt Injection Scanner
- Open the tool: Launch Prompt Injection Scanner on Toololis — no account or download needed.
- Enter your data: Paste text, enter values, or select a file directly in your browser.
- Get instant results: Everything is processed locally — results appear immediately.
- Copy or download: Save your output or share it. Bookmark for quick access next time.
Prompt Injection Scanner — Quick Facts
- Price
- Free — no limits, no watermarks, no paywalls
- Privacy
- 100% browser-based — no data is sent to any server
- Platform
- Any modern browser on desktop, tablet, or mobile
- Category
- AI Tools on Toololis
- Offline
- Works offline after first visit (Progressive Web App)
| Feature | Details |
|---|---|
| Tool | Prompt Injection Scanner |
| Category | AI |
| Signup Required | No |
| File Upload | None — processed in browser |
| Mobile Support | Fully responsive |
| Cost | Free forever |
Why Use Prompt Injection Scanner?
You should try Prompt Injection Scanner for a quick, private way to scan user input for jailbreak patterns. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.
On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.