Port of Firefox's JSON Viewer for Chromium-based Browsers
https://chrome.google.com/webstore/detail/json-viewer/efknglbfhoddmmfabeihlemgekhhnabb
Port of Firefox's JSON Viewer for Chrome and Opera
Install it from Chrome Web Store
Opera users could use this extension: Install Chrome Extensions
Try https://httpbin.org/headers after installation
Open Allow access to file URLs to make file:/// work
MIT
Port of Firefox's JSON Viewer for Chromium-based Browsers
https://chrome.google.com/webstore/detail/json-viewer/efknglbfhoddmmfabeihlemgekhhnabb
MIT License