jose is a JavaScript module for JSON Object Signing and Encryption, providing support for JSON Web Tokens (JWT), JSON Web Signature (JWS), JSON Web Encryption (JWE), JSON Web Key (JWK), JSON Web Key Set (JWKS), and more. The module is designed to work across various Web-interoperable runtimes including Node.js, browsers, Cloudflare Workers, Deno, Bun, and others.

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Support from the community to continue maintaining and improving this module is welcome. If you find the module useful, please consider supporting the project by becoming a sponsor.

jose has no dependencies and it exports tree-shakeable ESM¹.

jose is distributed via npmjs.com, jsr.io, jsdelivr.com, and github.com.

example ESM import¹

import * as jose from 'jose'

The jose module supports JSON Web Tokens (JWT) and provides functionality for signing and verifying tokens, as well as their JWT Claims Set validation.

• JWT Claims Set Validation & Signature Verification using the jwtVerify function
  • Using a remote JSON Web Key Set (JWKS)
  • Using a local JSON Web Key Set (JWKS)
• Signing using the SignJWT class
• Utility functions
  • Decoding Token's Protected Header
  • Decoding JWT Claims Set prior to its validation

The jose module supports encrypted JSON Web Tokens and provides functionality for encrypting and decrypting tokens, as well as their JWT Claims Set validation.

• Decryption & JWT Claims Set Validation using the jwtDecrypt function
• Encryption using the EncryptJWT class
• Utility functions
  • Decoding Token's Protected Header

The jose module supports importing, exporting, and generating keys and secrets in various formats, including PEM formats like SPKI, X.509 certificate, and PKCS #8, as well as JSON Web Key (JWK).

• Key Import Functions
  • JWK Import
  • Public Key Import (SPKI)
  • Public Key Import (X.509 Certificate)
  • Private Key Import (PKCS #8)
• Key and Secret Generation Functions
  • Asymmetric Key Pair Generation
  • Symmetric Secret Generation
• Key Export Functions
  • JWK Export
  • Private Key Export
  • Public Key Export

The jose module supports digital signature and MAC computation and validation over arbitrary JWS Payloads using the JWS Compact Serialization and the flattened and general JWS JSON Serialization syntaxes (RFC 7515, Section 7).

• Signing - Compact, Flattened JSON, General JSON
• Verification - Compact, Flattened JSON, General JSON
  • Using a remote JSON Web Key Set (JWKS)
  • Using a local JSON Web Key Set (JWKS)
• Utility functions
  • Decoding Token's Protected Header

The jose module supports encryption and authenticated decryption of arbitrary plaintext using the JWE Compact Serialization and the flattened and general JWE JSON Serialization syntaxes (RFC 7516, Section 7).

• Encryption - Compact, Flattened JSON, General JSON
• Decryption - Compact, Flattened JSON, General JSON
• Utility functions
  • Decoding Token's Protected Header

The following are additional features and utilities provided by the jose module:

• Calculating JWK Thumbprint
• Calculating JWK Thumbprint URI
• Verification using a JWK Embedded in a JWS Header
• Unsecured JWT
• JOSE Errors

The jose module is compatible with JavaScript runtimes that support the utilized Web API globals and standard built-in objects or are Node.js.

The following runtimes are supported (this is not an exhaustive list):

• Bun
• Browsers
• Cloudflare Workers
• Deno
• Electron
• Node.js

Please note that certain algorithms may not be available depending on the runtime used. You can find a list of available algorithms for each runtime in the specific issue links provided above.