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Password & Security

Password & Security

Strong passwords, hashes, tokens and encoding, for the logins and keys you would rather not reuse or guess at.

16 tools in 5 groups

Password Generators

5 tools

Password Generator

Create strong, random passwords with full control over length and character sets.

Passphrase Generator

Create strong, memorable Diceware-style passphrases from random common words.

PIN Generator

Generate random numeric PINs, skip weak codes, and export thousands to a file for provisioning.

Password Strength Checker

Test how strong a password is - see its entropy, estimated crack time, and what to fix, all in your browser.

2FA Authenticator

Add all your two-factor accounts and watch every code tick at once. Take one link away with you, a bookmark or a note or a spreadsheet cell, and it opens them all again.

Hashing

3 tools

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text - live as you type, with a one-click copy for each digest.

HMAC Generator

Compute an HMAC signature from a message and secret key using SHA-1, SHA-256, SHA-384, or SHA-512 - output as hex and base64, with one-click copy.

Checksum Calculator

Drop a file (or paste text) to compute its CRC32, MD5, SHA-1, and SHA-256 checksums, then paste the publisher’s expected value to verify a match - all in your browser.

Encoding

2 tools

Base64 Encode / Decode

Convert text to and from Base64 instantly, with full Unicode support - all in your browser.

Basic Auth Generator

Turn a username and password into an HTTP Basic Authorization header, Base64 token, and curl example - or decode a Basic token back to credentials. All in your browser.

Encryption

2 tools

AES Encrypt / Decrypt

Encrypt text with a passphrase using AES-256-GCM, or decrypt it back - the salt and IV are bundled into one base64 string. Runs entirely in your browser, nothing sent.

Caesar Cipher Encoder / Decoder

Encrypt or decrypt text with a Caesar shift (0-25), use the ROT13 preset, or brute-force an unknown shift by seeing all 25 rows at once. Runs entirely in your browser.

Identifiers

4 tools

UUID Generator

Generate UUIDs in every version in your browser: v4 random, v7 time-ordered for database keys, v1, deterministic v5 namespace, plus the Nil and Max IDs.

Random String Generator

Generate random strings, tokens, and keys with one-click presets for hex, base62, URL-safe tokens, and API keys.

Credit Card Validator

Check one card number or a whole list against the Luhn checksum, detect the network (Visa, Mastercard, Amex, Discover) from the prefix, and export the results. Runs in your browser.

MAC Address Generator

Generate random MAC addresses in colon, hyphen, or Cisco format, with real vendor OUI prefixes (VMware, VirtualBox, Hyper-V) and a locally-administered bit option.