Free Security Tools • Privacy Safe

Secure Passwords & Hashes
Generated Locally

Generate strong passwords, create MD5 and SHA hashes, produce unique UUIDs, and decode JWT tokens. All processing runs in your browser so your sensitive data stays private.

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Free Security Tools for Developers, All Client-Side

These security tools help you create and verify the kinds of values that come up regularly in development. Generate a strong random password with custom length, uppercase, lowercase, numbers, and symbols. Create a hash from any string using MD5, SHA-1, SHA-256, or SHA-512 to verify data integrity. Generate a UUID when you need a unique identifier for a database record or API response. Decode a JWT token to inspect its header and payload without running any code. Everything runs in your browser, so your input never leaves your device.

All tools run entirely in your browser. No files are uploaded to our server.

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Frequently Asked Questions

Everything you need to know

Yes. All processing happens in your browser — nothing is sent to any server. Hashes are computed locally, passwords are generated locally, and JWT tokens are decoded locally.

We support MD5, SHA-1, SHA-256, and SHA-512 hashing. Input any text or string and get the hash output instantly. Useful for checksums, API signature verification, and data integrity checks.

A UUID (Universally Unique Identifier) is a 128-bit ID used in databases, APIs, and distributed systems to uniquely identify records. Our generator produces both UUID v1 (time-based) and v4 (random) formats.

Yes. Our JWT Decoder takes any Bearer token or raw JWT, decodes the header and payload, and displays the claims in readable JSON — no library or backend needed.

Use our Password Generator to create passwords of 8–128 characters using uppercase, lowercase, numbers, and special symbols. Use passwords of at least 16 characters for important accounts.

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