YAML & JSON Pretty Viewer icon

YAML & JSON Pretty Viewer

by Carlos Brandt · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

View JSON and YAML files directly in the browser with pretty printing instead of downloading them.

Users
3
store count
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
total ratings
Store rank
#326K
#256K among extensions
Version
1.0.0
updated 3 Oct 2026

About YAML & JSON Pretty Viewer

Stop annoying file downloads and view JSON and YAML files directly in your browser with beautiful syntax highlighting. Tired of clicking a link to an API response, configuration file, or raw data feed only to have your browser instantly download the .json or .yaml file to your computer? YAML & JSON Pretty Viewer intercepts these files and renders them directly in your current tab. Instead of a messy wall of raw text, your code is automatically parsed, indented, and displayed in a clean, developer-friendly dark mode theme. Key Features: - Prevents Unwanted Downloads: Forces .json, .yml, and .yaml links to open in the browser instead of cluttering your Downloads folder. - Syntax Highlighting: Easily distinguish keys, strings, numbers, booleans, nulls, and comments with a color palette inspired by modern code editors. - Auto-Formatting: Automatically pretty-prints and correctly indents JSON data for maximum readability. - Dark Mode by Default: Easy on the eyes with a sleek, high-contrast dark theme. - Lightweight & Fast: Runs instantly without slowing down your browsing experience. Zero configuration required—just install and go. How it works: The extension uses minimal permissions to remove the Content-Disposition download header from JSON and YAML web requests, allowing Chrome to safely render the text on screen. It then applies a lightweight, local script to format the raw data. Privacy Focused: No user data is collected, tracked, or sent to external servers. All file formatting happens locally on your device in real-time.

Growth

WindowUsersChangeRatingsRating
7 days+2+200.0%00.00

Version history

1 versions recorded
1.0.03 Oct 2026

Details

Category
Developer Tools
First seen
3 Oct 2026
Size
42 KB
Languages
en
Pricing
Free
Extension ID
jlpgkgacmnalnecbhmffeepefnacoonk

Permissions and risk

Moderate riskimpact 2, likelihood 3
Permissions
declarativeNetRequest
Site access
<all_urls>
Can read and change data on every website you visit.

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