$ ls /tools/

Free Tools

Browser-based security & developer utilities. No signup, no paywall, forever free.

Live Browser Tools
💻
Code Runner
Write and execute code in 20+ languages. Full IDE with stdin support.
Python JS Bash C++
Open tool  →
#️⃣
Hash Generator
Generate MD5, SHA1, SHA256 and SHA512 hashes instantly.
MD5 SHA1 SHA256
Open tool  →
🔑
Password Generator
Create strong, random passwords with custom rules.
Secure Custom
Open tool  →
🧬
Base64 Encoder/Decoder
Encode and decode Base64 strings in-browser.
Encode Decode
Open tool  →
🌍
IP Lookup
Geolocation, ASN and ISP info for any IP address.
Geo ASN
Open tool  →
🔌
Port Checker
Check open ports and reference common port numbers.
TCP UDP
Open tool  →
🔒
SSL Checker
Verify SSL certificate validity, expiry and chain.
TLS Cert
Open tool  →
📄
PDF Tools
Extract text and metadata from any PDF file. 100% in-browser.
Extract Meta
Open tool  →
🎫
JWT Decoder
Decode JWT tokens and inspect header, payload and signature.
Token Auth
Open tool  →
🌐
CIDR Calculator
Compute network address, broadcast, hosts and subnet mask.
Network Subnet
Open tool  →
🔗
URL Encoder/Decoder
Percent-encode URLs for safe transmission and decode back.
Encode Decode
Open tool  →
{}
JSON Formatter
Format, minify and validate JSON with error highlighting.
Format Validate
Open tool  →
.*
Regex Tester
Live regex testing with match highlighting and groups.
Regex Live
Open tool  →
🎨
Color Converter
Convert between Hex, RGB, HSL and get color palettes.
Hex RGB HSL
Open tool  →
🕐
Timestamp Converter
Convert Unix timestamps to dates across timezones.
Unix Date
Open tool  →
🎲
UUID Generator
Generate cryptographically random UUID v4 values in bulk.
UUID Random
Open tool  →
Cheatsheets & References
📋
Linux Commands Cheatsheet
300+ commands · PDF · A4
Coming Soon
⚔️
Kali Linux Tools Guide
Top 50 pentesting tools · PDF
Coming Soon
🐍
Python 3 Quick Reference
Syntax + stdlib · PDF · A4
Coming Soon
🌐
Network Commands Cheatsheet
nmap, tcpdump, wireshark · PDF
Coming Soon
🔐
Metasploit Basics
Common modules & patterns · PDF
Coming Soon
🐚
Bash Scripting Reference
One-liners & templates · PDF
Coming Soon
🛡️
CTF Toolkit
Tools & tricks for CTFs · PDF
Coming Soon
🗺️
Cyber Roadmap 2026
Zero to security pro · PDF
Coming Soon