JSON Tools · JWT · Converter

Input JSON

Output

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JSON ↔ Converter

From

To

URL (optional)

Method

ResultCopy

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JWT Encode (Sign)

How it works: Fill in the Payload and Secret Key, then click Sign JWT to generate a JWT token. The header is auto-generated based on the selected algorithm.

Payload JSON *

Algorithm

Secret Key *

Header JSON (optional)

JWT Decode (no signature check)

JWT Token

JWT Verify Signature

Note: Supports HS256, HS384, HS512 algorithms. The algorithm is auto-detected from the token header if not specified.

JWT Token *

Secret Key *

Algorithm

HMAC Sign

Payload / Message *

Secret Key *

Algorithm

HMAC Verify

Payload / Message *

Signature to Verify *

Secret Key *

Algorithm

Encoding

Code Generator

Target Language

Method

URL

JSON Payload

Include Auth

Generated CodeCopy

Code will appear here…

Quick Convert

Click any conversion to auto-fill From→To and show a sample

Format Converter

From

To

URL (for HTTP outputs)

Table name (SQL INSERT)

OutputCopy

Output will appear here…

Base64 Encoder / Decoder

Input

URL-Safe