Free Security Tools for Developers & Pentesters

Hash generators, encoders, network analyzers, and 60+ cybersecurity utilities. All free, all client-side, no data leaves your browser.

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Cryptography

Hash Generator

Generate cryptographic hashes using MD5, SHA-1, SHA-256, SHA-512, and SHA-3 algorithms. All processing happens in your browser.

Cryptography

Hash Type Identifier

Paste any hash and automatically identify its type. Supports MD5, SHA-1, SHA-256, bcrypt, and many more formats.

Cryptography

HMAC Signature Generator

Generate Hash-based Message Authentication Codes using SHA-256, SHA-512, and other algorithms with a secret key.

Cryptography

Password Strength Checker

Test your password strength with entropy analysis, crack time estimates, and actionable security suggestions.

Cryptography

Secure Password Generator

Generate cryptographically secure random passwords with customizable length, character types, and strength requirements.

Encoding

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 strings back to plain text. Supports UTF-8 and binary data.

Encoding

JWT Token Decoder

Decode JSON Web Tokens to inspect their header, payload, and signature. Verify token expiration and claims.

Encoding

URL Encoder / Decoder

Encode special characters in URLs or decode percent-encoded URL strings. Handle query parameters safely.

Your Cybersecurity Toolkit

PwnDeck provides a comprehensive collection of free online security tools designed for developers, penetration testers, and security professionals. Generate hashes, decode tokens, analyze headers, test regex patterns, and more — all from your browser with zero data collection.