JSON Viewer Extension
JSON Viewer Extension detects raw JSON in the browser and reformats it into a view that is much easier to read.
It is useful when you are testing APIs, opening JSON endpoints directly in the browser, or checking local files without pasting everything into another tool first.
Features
- syntax highlighting so raw responses are easier to scan
- collapsible tree view with indent guides
- clickable URLs inside the response
- switch between raw and parsed views
- copy the response or download it as a file
- light and dark mode
- handles larger payloads more carefully so the tab does not lock up
Public Test JSON Endpoints
If you want to try the extension right away, open one of these public test endpoints in your browser:
They are useful for quick testing when you do not have your own API response handy.
Source
JSON Viewer is open source on GitHub.
If you have ideas for improvements, send me a note from the contact page.