Developer tools

Browse developer tools. Choose a tool to open its workspace.

• Hash generator

  Calculate SHA hashes from text or files.

• JWT decoder

  Read token headers and payloads.

• Regex tester

  Test an expression and inspect its matches.

• HTTP header viewer

  Inspect a response or paste raw headers.

Privacy

We do not sell data. Tool inputs and files are processed locally. The HTTP header viewer can make direct requests to a website you choose. Read the Privacy Policy.