PrismKit

JSON & data

Encode & convert

Text & writing

Web & design

Dev & ops

Security

Hashing

Hash Text File Hasher

HMAC Generator CRC Calculator

Bcrypt

Key Derivation (PBKDF2 / HKDF)

Encryption

Text Encryption

RSA Encrypt and Sign Shamir Secret Sharing

String Obfuscator Ansible Vault Encrypt / Decrypt Jasypt Encrypt / Decrypt

Keys & certificates

RSA Key Pair Generator

EC Key Pair Generator CSR Generator Self-Signed Certificate Generator Certificate Decoder

PDF Signature Checker Certificate Format Converter

Passwords & secrets

Token Generator Passphrase Generator

Password Strength Analyser

Htpasswd Generator

Django Secret Key Generator

WPA-PSK Generator

OTP Generator BIP39 Mnemonic Generator

Tokens

JWT Parser

JWT Generator SAML Decoder

Validators

Luhn Validator Credit Card Validator

IBAN Validator ISBN Validator

VAT Number Validator

Classic ciphers

Caesar Cipher

Vigenère Cipher Classic Ciphers XOR Cipher

Payments & IDs

EMV TLV Decoder Bech32 / Bech32m Converter

Generate & media

Calculators & reference

English

Changelog Attributions

PrismKit

Crypto & Security

BIP39 Mnemonic Generator

BIP39 Mnemonic Generator

Runs in your browserLocal

Markdown

Generate a BIP39 recovery phrase from random entropy, or paste a phrase to recover the entropy behind it. Multiple wordlists supported.

OTP Generator

Generate live TOTP and HOTP codes from a Base32 secret, with a scannable QR code for authenticator apps.

JWT Parser

Split a JSON Web Token into its header, payload, and signature and read the decoded claims.