Complete collection of free security and networking tools for developers and cybersecurity professionals. All tools are open-source and privacy-focused.
Advanced subnet calculator with VLSM, IPv6 support, topology visualization, and conflict detection. Essential for network administrators.
Encrypt and decrypt text using AES-256, RSA, and other algorithms. All encryption happens client-side for maximum security.
Generate cryptographically secure passwords with customizable length and character sets. Check password strength in real-time.
Generate MD5, SHA256, SHA512, and other cryptographic hashes. Essential for file integrity verification and security auditing.
Create QR codes for URLs, text, WiFi credentials, and contact information. Customizable size, error correction, and download options.
Decode and analyze JWT tokens to inspect headers, payloads, and verify signatures. Perfect for API development and debugging.
Encode and decode Base64 strings, including support for files and images. Essential for data transmission and API development.
Analyze password strength, check for common patterns, and get recommendations for stronger passwords. Includes breach database checking.