Security & Crypto
JWT decoders, hash generators, password generators, and key utilities.
Popular in Security & Crypto
JWT Decoder & Token Inspector
Decode JSON Web Tokens (JWT) payload, headers, and expiration dates instantly.
MD5, SHA1, SHA256 & SHA512 Hash Generator
Generate secure cryptographic hashes for text input using SHA-256, MD5, and SHA-512.
Secure Random Password Generator
Generate strong, cryptographically secure passwords with custom rules.
MD5 Hash Generator
Generate production-ready md5 hash output directly in the browser.
SHA-1 Hash Generator
Generate production-ready sha-1 hash output directly in the browser.
SHA-256 Hash Generator
Generate production-ready sha-256 hash output directly in the browser.
SHA-384 Hash Generator
Generate production-ready sha-384 hash output directly in the browser.
SHA-512 Hash Generator
Generate production-ready sha-512 hash output directly in the browser.
JWT Payload Viewer
Inspect and understand the supplied data locally with a structured visual view.
JWT Header Viewer
Inspect and understand the supplied data locally with a structured visual view.
JWT Expiry Checker
Validate input locally, highlight errors, and provide actionable fixes.
JWT Timestamp Converter
Convert supported input into the target format locally without uploading data.
All Security & Crypto
JWT Token Generator (Mock)
Create mock JSON Web Tokens with custom claims for development and testing.
SHA-3 Hash Generator
Generate production-ready sha-3 hash output directly in the browser.
BLAKE2 Hash Generator
Generate production-ready blake2 hash output directly in the browser.
HMAC Generator
Generate production-ready hmac output directly in the browser.
CRC32 Calculator
Calculate the requested result instantly using browser-side logic.
Adler-32 Calculator
Calculate the requested result instantly using browser-side logic.
File Checksum Generator
Generate production-ready file checksum output directly in the browser.
Hash Comparison Tool
Provide a fast, privacy-first browser utility for hash comparison tool.
Multi-Hash Generator
Generate production-ready multi-hash output directly in the browser.
PBKDF2 Derivation Tool
Provide a fast, privacy-first browser utility for pbkdf2 derivation tool.
Scrypt Derivation Tool
Provide a fast, privacy-first browser utility for scrypt derivation tool.
Argon2 Playground
Test inputs interactively in a safe browser-side playground.
Hash String Normalizer
Provide a fast, privacy-first browser utility for hash string normalizer.
Checksum Manifest Generator
Generate production-ready checksum manifest output directly in the browser.
Subresource Integrity Generator
Generate production-ready subresource integrity output directly in the browser.
Git Blob SHA Calculator
Calculate the requested result instantly using browser-side logic.
JWT Claim Validator
Validate input locally, highlight errors, and provide actionable fixes.
JWT Structure Validator
Validate input locally, highlight errors, and provide actionable fixes.
JWT Signature Inspector
Inspect and understand the supplied data locally with a structured visual view.
JWK Viewer
Inspect and understand the supplied data locally with a structured visual view.
JWKS Viewer
Inspect and understand the supplied data locally with a structured visual view.
OAuth Scope Builder
Generate production-ready oauth scope output directly in the browser.
OAuth State Generator
Generate production-ready oauth state output directly in the browser.
PKCE Code Generator
Generate production-ready pkce code output directly in the browser.
PKCE Challenge Verifier
Provide a fast, privacy-first browser utility for pkce challenge verifier.
API Key Generator
Generate production-ready api key output directly in the browser.
Secret Key Generator
Generate production-ready secret key output directly in the browser.
Bearer Token Parser
Inspect and understand the supplied data locally with a structured visual view.
Basic Auth Header Generator
Generate production-ready basic auth header output directly in the browser.
Authorization Header Builder
Generate production-ready authorization header output directly in the browser.
Token Entropy Calculator
Calculate the requested result instantly using browser-side logic.
Security and cryptography tools
Decode JWTs, generate secure hashes and passwords — all processed locally with zero data exposure.
JWT tools
Decode tokens, inspect claims, check expiration, and generate mock JWTs.
Hashing
SHA-256, SHA-512, MD5, and HMAC digest generation via Web Crypto API.
Passwords
Cryptographically secure password generation with custom rules.