Advanced macOS Quick Look Extension

a better quicklook

Fills the gaps in native macOS preview, empowering your Spacebar with advanced preview capabilities.

30+ All-in-One pro format support
Pro Feature-rich with deep parsing
Native Lightning fast, seamless integration
Design Handoff 34 folders · 1,248 files · 6.2 GB
Assets
Folder
Source
Folder
campaign-hero.heic
4.8 MB
README.md
12 KB
palette.json
3 KB
/Design Handoff/Assets/campaign-hero.heic
client-delivery.7z 286 items · 1.42 GB
Assets
Folder
Source
Folder
handoff.pdf
2.1 MB
preview.swift
42 KB
7z 2 items 2 KB -> 220 bytes 90%
4032 × 3024
1import Foundation
2import SwiftUI
3
4struct PreviewTheme {
5  static let accent = Color(hex: "#6aa9ff")
6  
7  static func statusBar(_ dark: Bool) -> some View {
8    Group { dark ? Color.black.opacity(0.14) : Color.white }
9      .overlay(alignment: .trailing) { ThemeToggle() }
10  }
11  
12  static func syntaxHighlight() -> CodeHighlighter {
13    let theme = UserDefaults.standard.string(forKey: "theme")
14    return CodeHighlighter(style: theme ?? "github")
15  }
16}
UTF-8 · LF · Swift
RELEASE_NOTES.md

GoodQuickLook 2.0

Bring important file details back into the first glance.

  • Archives, image dimensions, code, and everyday docs stay readable.
Release notes Added markdown themes and a cleaner reading layout
let preview = GoodQuickLook()

We have entirely rewritten the markdown rendering engine to support:

  • Multi-level headings for better structure
  • Code blocks with syntax highlighting
  • Live Table of Contents navigation
12 KB · Markdown
30+
Over 30 file formats supported in a single unified window. From source code to design masters, take control of your daily files.

More than preview. Ready for work.

Built for file work, development, design, and content creation. Press Space to inspect images, code, archives, and documents instantly.

Everyday

Handle files faster with fewer steps.

  • Archives Open ZIP and RAR contents without extracting
  • Media Preview MP4 and MP3 without a player
  • Folders See structure and size at a glance

Developer

Inspect code and configs in one tap.

  • Source Syntax highlighting with line numbers
  • Markdown Render READMEs and docs instantly
  • Configs Preview JSON, YAML, and Plist files

Designer

Check visual assets without heavy tools.

  • Images Accurate previews for HEIC, SVG, and PSD
  • Assets Browse folders full of design assets
  • Fonts Preview OTF and TTF typography

Creator

Review materials without breaking flow.

  • Markdown Supports tables, code blocks, and TOC
  • Documents Read ebooks and reference files smoothly
  • Media Check images and video clips quickly

Start free. Unleash full potential with Pro.

A solid free foundation for casual use, and a hardcore powerhouse for high-frequency professional workflows.

BenefitFreeLifetime Pro
Enable core preview plugins
Unlock 30+ preview categories -
Access to all future premium plugins -
Priority technical support -

Support & FAQ

Official guidance and support for installation, activation, purchase restoration, and compatibility.

Need help?

Installation, extension activation, purchase restore, and format compatibility reports all start from the support page.

How do I enable the Quick Look extension?

After installing, open GoodQuickLook settings and follow the prompts to enable the Quick Look and Finder extensions in macOS System Settings.

Why is a format not previewing?

Confirm that its plugin is enabled. The free version has a simultaneous plugin limit; upgrade to Pro to enable every preview category.

Are my files uploaded?

Never. GoodQuickLook is strictly built around local rendering. Aside from App Store purchase validation and support messages you initiate, the app does not collect any file contents.