https://github.com/relikd/qljson

QuickLook extension for JSON files
https://github.com/relikd/qljson

json macos quicklook quicklook-plugin

Last synced: 15 days ago
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QuickLook extension for JSON files

• Host: GitHub
• URL: https://github.com/relikd/qljson
• Owner: relikd
• License: mit
• Created: 2025-07-30T15:18:39.000Z (9 months ago)
• Default Branch: main
• Last Pushed: 2025-07-30T15:28:14.000Z (9 months ago)
• Last Synced: 2025-07-30T18:25:07.710Z (9 months ago)
• Topics: json, macos, quicklook, quicklook-plugin
• Language: JavaScript
• Homepage:
• Size: 269 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
[![macOS 10.15+](https://img.shields.io/badge/macOS-10.15+-888)](#)

[![Current release](https://img.shields.io/github/release/relikd/QLJSON)](https://github.com/relikd/QLJSON/releases/latest)

[![All downloads](https://img.shields.io/github/downloads/relikd/QLJSON/total)](https://github.com/relikd/QLJSON/releases)

![icon](resources/icon.png)

QLJSON

======

QuickLook plugin for `.json` files.

![screenshot](resources/screenshot.png)

I have been using [QuicklookJSON][1] until recently but it has no support for macOS 15.

I copied some parts of [QuickJSON][2] but did through away almost everything.

The remaining code was heavily refactored.

Installation

------------

Requires macOS Catalina (10.15) or higher.

```sh

brew install --cask relikd/tap/qljson

xattr -d com.apple.quarantine /Applications/QLJSON.app

```

or download from [releases](https://github.com/relikd/QLJSON/releases/latest).

Features

--------

- No dependencies

- Small app size (2 MB)

- Easy to review (lines of code: 40 Swift + 100 JS)

- Dark Mode

- Foldable structures

- Customizable html output

### How to customize CSS / JS

1. Right click on the app and select "Show Package Contents"

2. Go to `PlugIns` and repeat "Show Package Contents" on the Preview extension.

3. Copy `Contents/Resources/style.css` (or `script.js`)

4. Open `~/Library/Containers/de.relikd.QLJSON.Preview/Data/Documents/`

5. Paste the previous file and modify it to your liking (e.g. change text colors)

[1]: http://www.sagtau.com/quicklookjson.html

[2]: https://github.com/johan/QuickJSON