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JSON Viewer icon

Port of Firefox's JSON Viewer

Port of Firefox's JSON Viewer

User reviews

10 Β· from the Chrome Web Store
  • I

    Iman Sh

    Jan 7, 2026
  • T

    Tom Kisha

    Dec 5, 2025

    Seems to work, even when you don't want it to. For example, visiting namecheap.com. It replaces the entire webpage with JSON Viewer because it found some hidden JSON somewhere on the page. Maybe check the response MIME type first?Developer doesn't seem interested in fixing it.

  • M

    Marko M

    Jul 5, 2025

    The single best json viewer extension. Works on huge payloads and on streamed responses.

  • P

    Peter Mckenna

    May 21, 2025

    When it works it is very nice. However it doesn't always work reliably. I've just opened a clearly JSON formatted file ending with .json in the browser's regular window and it has not been picked up by this extension. It's happened a few times recently.

  • P

    Prab Singh

    Mar 4, 2025

    Works beautifully

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