All Developer Utilities

Search and filter our complete suite of 46 offline, client-side tools.

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Base64 Encode/Decode

Security

Encode text or files to Base64 and decode Base64 strings

base64encode

JWT Decoder

Security

Decode and inspect JSON Web Token header, payload and signature

jwtjson web token

SHA-256 Hasher

Security

Calculate cryptographic hashes for text or files without server transmission.

sha256hash

RSA Key Generator

Security

Generate secure RSA public/private key pairs and SSH keys locally.

rsassh

Bcrypt Hasher & Verifier

Security

Hash passwords and verify text against Bcrypt hashes locally and securely.

bcryptpassword

Local Cryptography, Hashing & Decoding

Security is paramount when developing software. Our suite of security utilities allows you to inspect JWT authentication structures, calculate cryptographic hashes (like SHA-256, SHA-512, MD5), and generate RSA public/private key pairs completely within your browser's local sandbox.

Unlike online tools that upload credentials to remote systems, we utilize the standard Web Crypto API so that private keys and plaintext passwords never cross the network.

Key Features

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Secure Hash Generator: Calculate MD5, SHA-1, SHA-256, and SHA-512 values locally.
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JWT Signature Verification: Safely inspect payload signatures and algorithms.
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RSA Key Generator: Generate secure key pairs in PEM format right in your browser.
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No Server Logs: Absolute privacy guarantee—no private keys or data are logged.