Security Tools

Security-focused tools for passwords, tokens, and cryptography.

7 tools

All Security Tools

Generate bcrypt-format password hashes using PBKDF2. Adjust cost rounds for security vs. speed tradeoffs.

Build Content-Security-Policy headers visually. Select directives and sources, then copy the header or meta tag.

Generate HMAC signatures using SHA-256, SHA-512, and other algorithms.

Decode and inspect JSON Web Tokens to view header, payload, and expiration.

Analyze password strength with detailed feedback and improvement suggestions.

Find and mask API keys, tokens, emails, and private keys in code or logs before you share them.

Calculate fingerprints from SSH public keys. Shows SHA-256 hash, key type, and approximate bit length.

Learn how to create strong passwords, understand entropy, hashing algorithms, and best practices for password security.

Learn how JWTs work, structure, algorithms, claims, signing, and security best practices for authentication and APIs.

Understand cryptographic hash functions. MD5, SHA-256, HMAC, and when to use each for integrity, passwords, and signatures.

Understand Content-Security-Policy, CORS, and other security headers, what they do and how to configure them.

Learn design tokens and CSS custom properties, build scalable themes, dark mode, and design systems with variables.

Write prompts that get precise results: specificity, context, output format, few-shot examples, role assignment, chain of thought, and anti-patterns.

Some online JSON formatters upload your data and some do not. Here is the 30-second DevTools check that tells you which one you are using.

What are security tools?

Security-focused tools for passwords, tokens, and cryptography.

How many security tools do you have?

We've got 7 free security tools including Bcrypt Hash Generator, CSP Header Generator, HMAC Generator, and more. All free to use!

Do I need to make an account?

Nope! Everything on BuildUtilities is free and works without signing up.