A field guide
for your API.
Turn your OpenAPI file and Markdown guides into one public documentation site.
JSON or YAML · Preview stays in your browserFrom file to live site
Preview locally
Open a JSON or YAML file and explore its endpoints before signing in.
Shape your draft
Import into a workspace and write Markdown guides alongside your reference.
Publish a version
Share a public reader link. Later edits stay in your draft until you publish again.
Before you publish
What’s included for free?
One public documentation site per workspace, with API reference, Markdown guides and ZIP export. Readers don’t need an account.
Which files can I preview?
Choose a self-contained OpenAPI 3.0 or 3.1 definition in JSON or YAML, up to 10 MiB. Bundle external references into the file first.
Who can see my file?
Preview keeps the file in this tab. For GitHub sign-in you can choose an encrypted, ten-minute handoff. Import saves the original to your workspace. Publish shares it with readers who can access the site.