
PreviewCode
Easy source code file previews
Only for Mac
$2.49
Also Included In
Mac
Easy source code QuickLook previews and icon thumbnails.
PreviewCode provides QuickLook file previews and Finder file icon thumbnails for source code documents and data files for a wide variety of programming languages.
The app provides two app extensions: Code Previewer and Code Thumbnailer, which can be viewed and managed in macOS’ System Preferences > Extensions. The app itself is a container for these extensions.
You must run the app first to gain these benefits.
PreviewCode supports the following languages features:
• ActionScript
• Ada
• AppleScript
• Arduino
• Basic
• Brainf**k
• C
• C++
• C#
• Clojure (see Known Issues, below)
• CoffeeScript
• Dart
• Elixir (see Known Issues, below)
• Elm
• Erlang
• Fortran
• F#
• GML
• Go
• Haskell
• Java
• JavaScript
• Julia
• Kotlin
• Lisp
• Lua
• Objective-C
• OPL
• Pascal
• Perl
• PHP
• Python
• Ruby
• Rust
• Swift
• TypeScript (see Known Issues, below)
• Visual Basic Script
• Vue.js
Shell Scripting
• Bash
• C Shell
• Korn Shell
• TCSH
• Z Shell
Assembly
• ARM Assembler
• x86-64 Assembler
• 6809 Assembler
Others
• Asciidoc
• CMake files
• Config
• CSS
• DxO PhotoLab sidecar files (.dop)
• Environment files (.env)
• Extensible Metadata Platform files (.xmp)
• LaTex
• Protobuf
• SASS/SCSS
• SQL script
• Twig
• Terraform source and vars files
• Translation Memory eXchange files (.tmx)
• Xcode files (.storyboard, .xib, .plist, .strings)
• XML Localization Interchange File Formaf (.xlf)
Known Issues
• PreviewCode will not render TypeScript .ts files: the .ts file extension is pre-set on macOS to MPEG-2 transport stream video files. The .tsx and .typescript extensions are supported.
• PreviewCode will not render Clojure .edn files: the .edn file extension is pre-set on macOS to an Adobe digital rights management product.
• PreviewCode will not render Elixir .exs files if GarageBand and/or Logic Pro is installed on your Mac. This is because these apps use this file extension for EXS24 instrument files.
• Previews displayed on external displays, or on Macs with connected to multiple monitors, may intermittently not be scrollable if you’re using a third-party mouse. Workaround: a MacBook’s built-in trackpad will be able to scroll.
• Deselecting code in the preview is not immediate: the highlight clears after ~1s. We are investigating fixes.
This app hasn’t received enough ratings or reviews to display an overview.
• Tahoe support phase II: adjust PreviewMarkdown’s Settings UI for the new design style.
The developer, Black Pyramid Software, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Antony Smith
- Size
- 10.5 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 11.5 or later.
- Mac
Requires macOS 11.5 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025, Tony Smith
