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CF JSON Lens

ExtensionDeveloper Tools2 users
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Item media 1 (screenshot) for CF JSON Lens
Item media 1 (screenshot) for CF JSON Lens
Item media 2 (screenshot) for CF JSON Lens
Item media 3 (screenshot) for CF JSON Lens

Overview

Pretty, fast JSON in your browser. Themes, collapsible tree, raw toggle.

CF JSON Lens turns raw JSON in your browser into a clean, readable, collapsible tree, automatically, the moment a page loads. Open any API response, JSON file, or endpoint and instead of a wall of text you get syntax highlighting, line numbers, fold and unfold on every node, and a one-click toggle back to the raw source. Choose from 27 color themes on the options page, including dark modes. Type "json" in the address bar to format any pasted JSON. Works on application/json responses and on JSON served as plain text (many APIs do this). No account, no network calls, no analytics. Everything runs locally in your browser and your data never leaves the page. CF JSON Lens is a maintained, Manifest V3 fork of the open-source JSON Viewer extension by Tulio Ornelas (MIT), which is no longer available. Rebuilt with a modern toolchain and kept free by CF Soft. Source code: https://github.com/cfgenius145-sketch/cf-json-lens

Details

  • Version
    1.0.0
  • Updated
    September 12, 2026
  • Size
    327KiB
  • Languages
    English (United States)
  • Developer
    CFAISolutions
    2236 Gateway Oaks Dr #326 Sacramento, CA 95833-3217 US
    Email
    cfgenius145@gmail.com
    Phone
    +1 562-612-6730
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
  • D-U-N-S
    145907636

Privacy

Manage extensions and learn how they're being used in your organization

CF JSON Lens has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

CF JSON Lens handles the following:

Location
Web history
User activity
Website content

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes
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