Free Security Tools
Hands-on interactive tools to learn, explore, and test cybersecurity concepts — all free, no signup required.
10+ Tools
No Signup Required
Browser Based
Password Strength Checker
Test the strength and security of any password in real-time
Enter a password to check strength
Hash Generator
Generate MD5, SHA-1, SHA-256 hashes for any text input
Hash will appear here...
Base64 Encoder / Decoder
Encode or decode Base64 strings instantly in your browser
Output will appear here...
IP Address Info
Look up geolocation and ISP info for any IP address
Enter an IP address and click Lookup
CVE Quick Reference
Search and reference common CVEs by ID or keyword
CVE-2026-1234
9.8 CRITICAL
CVE-2026-5678
8.5 HIGH
CVE-2026-9012
6.5 MEDIUM
Security Knowledge Quiz
Test your cybersecurity knowledge with our interactive quiz
What does SQL injection allow an attacker to do?
Score: 0 / 7
CVSS v3.1 Score Calculator
Calculate vulnerability severity scores for bug bounty reports
0.0
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
JWT Token Decoder
Decode and inspect JSON Web Tokens � check claims, expiry and algorithm
Header
Payload (Claims)
Security Note: JWT signatures are NOT verified here. Never trust JWT payload data without server-side verification.
URL Encoder / Decoder
Encode and decode URL strings for payload crafting and testing
Output
Subnet Calculator
Calculate network address, broadcast, hosts and subnet mask from IP/CIDR
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