Capture The Flag security tools
Complete toolkit for Capture The Flag competitions and security research. From classic ciphers to modern cryptography, steganography to forensics - everything you need to solve security challenges.
Encode and decode Base64 strings with multiple variants
URL encode/decode with support for double encoding
Convert between text and hexadecimal representation
Convert between ASCII codes and characters
Convert text to binary and vice versa
Quick access to the most used security tools
Encode and decode Base64 strings with multiple variants
URL encode/decode with support for double encoding
Classic shift cipher with brute force capabilities
Rotation cipher with customizable shift values
Generate MD5, SHA1, SHA256, SHA512 hashes
Essential strategies for Capture The Flag competitions
Always start by gathering information about the challenge
Start with the most common encoding schemes
Many CTFs use historical encryption methods
Information can be hidden in unexpected places
Look for mathematical patterns and sequences
Understand network protocols and traffic
Start with our most popular tools or explore specific categories based on your challenge type.