DevToolkitUtilities

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ID Generator
Mock Data Generator
Thai CID Generator
Lorem Ipsum
QR Code Generator

Password Generator
Password Hasher
Hash Generator
HMAC Generator
Encryption / Decryption

Base64 Encoder
URL Encoder / Decoder
JWT Decoder
JWT Builder / Signer
Number Base Converter

JSON Formatter
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CSV ↔ JSON Converter

CSS Gradient Generator
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SEO Toolkit

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Text Diff Tool
Markdown Preview
LINE Message Formatter

Timestamp Converter
Timezone Converter
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SQL Analyzer

DevToolkit

JWT Builder / Signer

Secure JSON Web Token (JWT) builder. Create and sign your own JWTs with custom payloads, headers, and secret keys for testing authentication flows and token verification.

1. Header

Algorithm

Type (typ)

2. Payload (JSON)

3. Signature Secret

Keep this secure. Used to sign the HMAC segment.

Generated Token

Click Generate to create your JWT