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Debugger

Warning: JWTs are credentials, which can grant access to resources. Be careful where you paste them! We do not record tokens, all validation and debugging is done on the client side.
Algorithm

HEADER:ALGORITHM & TOKEN TYPE

PAYLOAD:DATA

VERIFY SIGNATURE

HMACSHA256(
  base64UrlEncode(header) + "." +
  base64UrlEncode(payload),
  
) 
RSASHA256(
  base64UrlEncode(header) + "." +
  base64UrlEncode(payload),
  ,
  
)

Libraries for Token Signing/Verification

Filter by
Warning: Critical vulnerabilities in JSON Web Token libraries with asymmetric keys. Learn more

.NET

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.NET

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.NET

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Python

Minimum Version 1.0.1

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Python

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Python

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Python

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EdDSA

Node.js

Minimum Version 4.2.2

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Node.js

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Java

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Java

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EdDSA

Java

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EdDSA

Java

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EdDSA

Java

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EdDSA

Java

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EdDSA

JavaScript

Minimum Version 3.2.0

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JavaScript

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EdDSA

JavaScript

Minimum Version 0.9.4

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Perl

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Ruby

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Lindsay & Rudat

Ruby

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Fleshman

Ruby

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Ruby

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Elixir

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Fleshman

Elixir

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bryanjos

Elixir

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hassox

Erlang

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Go

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Groovy

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Haskell

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Haskell

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Haxe

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EdDSA

Rust

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EdDSA

Rust

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Rust

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EdDSA

Lua

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Scala

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Scala

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Scala

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Scala

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Scala

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D

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D

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Clojure

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Objective-C

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yourkarma & lolgear

Swift

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Swift

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Swift

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EdDSA

Swift

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EdDSA

C

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C++

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C++

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EdDSA

C++

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C++

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kdb+/Q

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EdDSA

Delphi

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Delphi

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EdDSA

PHP

Minimum Version 2.0.0

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EdDSA

PHP

Minimum Version 3.0.0

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EdDSA

PHP

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EdDSA

PHP

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HS256

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EdDSA

PHP

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RS384

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ES256

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PS256

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EdDSA

PHP

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HS256

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HS512

RS256

RS384

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ES256

ES384

ES512

PS256

PS384

PS512

EdDSA

PHP

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HS256

HS384

HS512

RS256

RS384

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ES256

ES384

ES512

PS256

PS384

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EdDSA

PHP

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HS256

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RS384

RS512

ES256

ES384

ES512

PS256

PS384

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EdDSA

PHP

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HS256

HS384

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RS256

RS384

RS512

ES256

ES384

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EdDSA

PHP

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HS256

HS384

HS512

RS256

RS384

RS512

ES256

ES384

ES512

PS256

PS384

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EdDSA

PHP

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HS256

HS384

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RS384

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ES384

ES512

PS256

PS384

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EdDSA

PHP

Minimum Version 7.2.1

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HS256

HS384

HS512

RS256

RS384

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ES512

PS256

PS384

PS512

EdDSA

Crystal

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EdDSA

1C

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EdDSA

PostgreSQL

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EdDSA

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