XSS Test Sandbox
Learn XSS prevention with sandbox
🔒 Files never leave your browser
Educational Tool: This sandbox demonstrates how XSS attacks work and why input sanitization is critical. The "raw" preview uses a sandboxed iframe. No code leaves your browser.
How to Use XSS Test Sandbox
Select payload
Choose a test XSS payload.
Test
See sanitized vs raw output.
Learn
Understand what was filtered.
Why Choose AllTools XSS Test Sandbox?
- ✓ Test payloads
- ✓ Sanitizer
- ✓ Safe sandbox
- ✓ Before/after
- ✓ Educational
- ✓ No data stored
Related Resources
Frequently Asked Questions
Is this safe? ▼
Yes. The raw output is rendered in a sandboxed iframe with no access to the parent page.
Can this be used to attack websites? ▼
No. This is an educational tool that only demonstrates XSS in a local sandbox. It does not interact with any external websites.
What XSS types does this cover? ▼
The sandbox demonstrates reflected XSS payloads including script injection, event handlers, and encoding bypasses to help you understand sanitization.
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