Tool category

Crypto

Use focused security utilities to inspect, generate, or validate cryptographic material without routine uploads. Review every result before using it with production credentials or funds.

13 tools

Choose a task

Hashes, tokens, secrets, and security utilities.

TOTP Generator

Generate TOTP codes locally and import or export otpauth profiles with a setup QR.

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JWT Inspector

Decode JWTs, inspect claims, and verify HS signatures locally.

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Hash Generator

Generate and verify SHA hashes locally for text and files without server uploads.

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Token Generator

Generate secure random tokens locally with custom character sets.

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BIP39 Passphrase Generator

Generate and validate BIP39 mnemonic phrases locally, then derive a seed with an optional passphrase.

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HD Wallet Address Deriver

Derive BTC and ETH addresses locally from a mnemonic or xpub/tpub with testnet and Taproot support.

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HMAC Generator

Compute HMAC digests locally from a message and secret key.

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Password Strength Analyzer

Estimate password strength locally with entropy and safety warnings.

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PDF Trust Report

Check PDF signature integrity and active-content security signals locally.

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Certificate Inspector

Inspect PEM certificates, fingerprints, names, and validity locally.

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SSH Key Inspector

Parse OpenSSH public keys and copy SHA-256 fingerprints locally.

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RSA Key Pair Generator

Generate RSA public and private keys locally with PEM and JWK export.

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Encrypt / Decrypt Text

Encrypt and decrypt text locally with AES-GCM and a passphrase.

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Workflows

Tokens and hashes

Decode JWTs, calculate hashes and HMACs, generate tokens, and inspect password strength.

Keys and wallets

Inspect certificates and SSH keys or work with BIP39 and HD-wallet derivation locally.

Quick answers

Can I use these results with production secrets?

Treat generated or inspected material as sensitive, verify standards and network parameters, and test results before production use.