OpenAPI DevTools – Chrome extension that generates an API spec
Effortlessly discover API behaviour with a Chrome extension that automatically generates OpenAPI specifications in real time for any app or website.
OpenAPI DevTools – Chrome extension that generates an API spec launched on October 25, 2023 with 811 votes, #6 of 4,393 launches that month and more than 99% of that year's launches. The site was not reachable when checked in September 2026.
In plain words
OpenAPI DevTools is a Chrome extension that automatically generates OpenAPI specifications by monitoring network activity on any app or website. It captures API behavior in real time, eliminating manual documentation work. The tool is designed for developers who need to understand or document APIs quickly without writing specifications from scratch. It works across any web application directly in the browser.
written from the facts on this page · September 2026
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OpenAPI DevTools2023 · chromewebstore.google.com · ▲1Instantly generate API specs for any app or website for free
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