Explore APIs
in plain text.

A focused desktop tool for exploring HTTP APIs in plain text. Write a request, run it, inspect the response, and keep what you learn alongside your code.

HTTP Lion for Windows

Coming soon to the Microsoft Store.

Explore the workflow

01 / THE WORKBENCHTEXT FIRST. EXPLORATION FIRST.

HTTP Lion with three plain-text API requests and a JSON response shown in the Tree inspector.

02 / FROM REQUEST TO UNDERSTANDING

The request is the workspace.

Start with a single line. Let useful experiments grow into files you can keep, share, and review.

Plain text. Real files.

Keep related requests and notes in ordinary text files. Save them alongside your source code, review changes in Git, or open them in another editor.

Change context, keep the request.

Reuse document variables and switch named environments without rewriting your requests. Browser authentication shares an isolated cookie session with its document.

See both sides of the exchange.

Inspect the effective request and the returned response, including headers and body. Explore supported previews or examine the original content in Raw and Hex views.

03 / LICENSING

A clear distinction.

HTTP Lion is free for personal and non-professional use.

Professional licensing for workplace use is coming.

FOR YOUR NEXT EXPLORATION

Open a file.
Start exploring.