Encoding & Token Tools
Your all-in-one encoding toolkit. Encode and decode Base64, inspect JWT tokens, and generate UUIDs — all in one place, entirely in your browser.
What this tool is used for
The Encoding & Token Tools page groups together the utilities developers reach for during API, auth, and infrastructure work: Base64, JWT, and UUID. It is useful when you need to switch between encoding text, inspecting tokens, and generating identifiers without opening multiple tabs.
This page is designed for fast debugging and small tasks that do not justify installing a package or writing a quick script. Everything runs locally in the browser, which keeps the workflow private and lightweight.
Common use cases
- Decode a JWT while testing authentication and authorization flows
- Encode or decode Base64 values found in API payloads or logs
- Generate UUIDs for fixtures, identifiers, and quick setup work
When to use each tool
Base64
Use Base64 when you need to encode data for transport through text-only systems, URLs, config files, or data URIs.
JWT
Use JWT when you need to inspect authentication tokens, read claims, or debug login and authorization issues.
UUID
Use UUID when you need random unique identifiers for records, distributed systems, fixtures, or client-generated IDs.
Privacy note: All processing happens locally in your browser. Your data never leaves your device.