Base64 Toolbox
Quick Base64-encode files
Only for Mac
$1.99
Mac
Base64 Toolbox is a macOS utility for developers, designers, and anyone working with Base64. Encode and decode files and text directly from Finder or from any app.
Base64 Toolbox is a macOS utility for developers, designers, and anyone working with Base64. Encode and decode files and text directly from Finder or from any app.
Encode Files in Seconds
• Base64-encode entire files via drag & drop or right-click in Finder
• Supports images (JPG, PNG, GIF, TIFF) and other file types
• Images are displayed directly in the app
• Output formatted for HTML, CSS, XML, or URL (data URIs)
System-Wide Encoding
• Use macOS Services: "Base64Encode" and "Base64Decode" from the Finder context menu
• Encode or decode text directly in other apps (e.g. TextEdit, Xcode, VS Code)
• No need to copy into the app – everything stays integrated in the system
Clear View of Encoded and Decoded Data
• Side-by-side view of encoded and decoded content
• For images: automatic detection and display
• For binary data: hexadecimal view with optional display of printable characters
• Useful for debugging and analyzing Base64 structures
Simple and Fast Workflow
• Drag & drop for files
• One-click copy to clipboard
• Formatted output for HTML, CSS, XML, and URL
• Save decoded data to a file with one click
Who Is Base64 Toolbox For?
• Developers embedding data URIs in HTML/CSS
• Designers embedding images in web pages
• Admins inspecting or editing Base64 data
• Anyone who needs a fast, clear Base64 tool
Technical Details
• Native macOS app
• Sandbox compliant
• Uses macOS Services for system-wide integration
Originally created by John Bowers as Base64Anywhere. Continued and developed by Smart-App.Dev.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
New look
• New app icon
• Dark theme with updated layout
• Footer with version info and Smart-App.Dev branding
Improvements
• Fixed footer that stays visible when resizing or loading images
• Fixed window size for a consistent layout
• Faster file encoding (background processing)
• Corrected “Save decoded” so it saves decoded data
• Version and build number now taken from app settings
Technical
• Updated project structure
• Modern macOS window styling (transparent title bar)
• Bug fixes and stability improvements
The developer, Stefan Hollekamp, 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
- Stefan Hollekamp
- Size
- 2.4 MB
- Category
- Graphics & Design
- Compatibility
Requires macOS 12.4 or later.
- Mac
Requires macOS 12.4 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Stefan Hollekamp
