PreviewCode is the Best, Easy-to-Use Source Code File Preview App. Free Download. Mac developers often require a quick way to preview source code files without launching a full editor. The PreviewCode App for Mac addresses this need by extending the Quick Look feature in Finder. Users can instantly view syntax-highlighted snippets for HTML, CSS, JavaScript, C++, Swift, and Python, making it an excellent tool for those who work across multiple languages. Also, Check Out GrandTotal .
The PreviewCode Free Download App version supports syntax highlighting and offers a QuickLook plugin, delivering colorful, readable previews that enhance productivity during file management. Unlike traditional editors, it operates natively within Finder for a seamless experience. QuickLook thumbnails and previews help developers quickly identify files without opening each one separately, saving time when browsing large repositories.
The app stands out for its modern interface, macOS Big Sur and later compatibility, and minimal impact on system resources. It supports additional features for advanced users, including customizable themes and broader file type coverage. Compared to other plugins like QLColorCode, PreviewCode offers better stability and integration, making it the top choice for Mac developers who need a lightweight yet functional tool for viewing code, scripts, and documentation. Overall, it’s an essential utility for effective source file organization and previewing on macOS.
- First, follow the link below and download the PreviewCode .
- Now double-click the setup file and install it on macOS.
- After installation is completed, your software is ready for use.
- QuickLook integration: Provides native QuickLook previews of source code files in Finder and the Preview pane.
- Thumbnail generation: Displays icon thumbnails for supported code/data files in Finder’s icon view.
- Broad language support: Recognizes and highlights over 50 programming, scripting, and data-file types (e.g., C, Python, Rust, Swift) for previews.
- Customizable appearance: Allows choosing a monospace font, text size, and line spacing for the code preview window.
- Theme switching: Includes light and dark themes, plus an “Auto” option that adapts to macOS appearance mode.
- Line-number display: Offers optional line-number display alongside code previews.
- Two extension modules: Ships with a “Code Previewer” for QuickLook and a separate “Code Thumbnailer” for icon thumbs.
- Minimal setup: After installation, you only need to launch once to register the extensions for system use.
- Apple-silicon & Intel support: Compatible with both Apple Silicon (ARM) and Intel Macs running macOS 11.5 or later.
- Privacy-conscious: Developer states the app collects no data.
| Name | PreviewCode |
|---|---|
| File Name | PreviewCode 2.2.2.dmg (typical Mac App Store / direct installer) |
| File Size | 5.6 MB (App Store listing) |
| Version | 2.2.2 (released Sep 27, 2025) |
| License Type | MIT license (for source) |
| Released Date | September 27, 2025 |
| Created By | Antony Smith / Black Pyramid Software |
| Publisher | Black Pyramid Software (via Mac App Store) |
| Developer | Black Pyramid Software (Antony Smith) |
| Category | Developer Tools |
| Language | English |
| Uploaded By | n/a (App Store listing) – credited to Antony Smith / Black Pyramid Software |
| Official Website of the Developers | https://smittytone.net/previewcode/ |
| Compressed Type | .dmg (typical Mac installer) — the App Store version is delivered via Mac App Store package |
| Compatibility | Requires macOS 11.5 or later (via App Store) |
| Requirement | Details |
|---|---|
| App | PreviewCode |
| Developer / Seller | Black Pyramid Software — Antony Smith |
| Latest version | 2.2.2 (released Sep 27, 2025) |
| Minimum macOS | macOS 11.5 or later |
| Supported architectures | Intel & Apple Silicon (universal) |
| App size | ≈ 5.6 MB |
| Language | English |
