Developer tools

Use these free online developer tools to generate keys and identifiers, inspect tokens, and debug common web application integration tasks.

Privacy note: Submitted values are processed only to produce the requested result and are not stored by these tools.

JWT Generator & Decoder

Create, decode, and verify JSON Web Tokens with common HMAC, RSA, and ECDSA algorithms for authentication and API testing.

UUID Generator

Generate UUID v1, v4, and v7 identifiers for databases, fixtures, distributed systems, API examples, and automated tests.

VAPID Keys Generator

Generate public and private VAPID keys used to authenticate application servers for browser Web Push notifications.

When to use these tools

They are designed for API debugging, authentication tests, database fixtures, web push setup, and quick checks during Drupal, PHP, and JavaScript development.