OpenAPI viewer — list endpoints from a spec
Paste an OpenAPI 3.x document in JSON or YAML and see the title, version and every endpoint at a glance. It parses entirely in your browser (0 uploads, works offline).
How to use it
- Paste your OpenAPI spec (JSON or YAML).
- Read the endpoint list — method, path and summary.
- Copy or Download the endpoint list.
FAQ
How do I view an OpenAPI spec for free?
Paste the document, in JSON or YAML, and this page lists each path and method with its summary or operation id — on your device with no upload.
Does it read both JSON and YAML?
Yes. It detects the format automatically, so you can paste either a JSON or a YAML OpenAPI document.
Is my spec uploaded anywhere?
No. Parsing runs entirely in your browser and nothing is transmitted or stored, which you can verify by turning off your Wi-Fi. That keeps internal, unreleased API designs private.
Which OpenAPI versions are supported?
It reads the paths and info from OpenAPI 3.0 and 3.1 documents, which covers the vast majority of specs in use.
Limits
Lists endpoints and basic info; it does not render full request/response schemas or offer a try-it console.
Related
The API spec generator scaffolds a new spec; the HAR analyzer inspects real traffic.
Bookmark this page (Ctrl+D, or ⌘D on Mac) or install the app — it works offline the next time you need it.