Base64 Encoding and Decoding: Complete Developer Guide
Master Base64 encoding and decoding with practical examples. Learn when to use it, common pitfalls, and best practices for handling binary data.
Convert PNG images to Base64 data URLs for HTML, CSS, and web development
Drag & drop your file here
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Supported formats: PNG files
Maximum file size: 10MB
Convert PNG images to Base64 data URLs for direct embedding in HTML, CSS, or JSON. PNG (Portable Network Graphics) is ideal for images with transparency, logos, and icons. This tool generates a data URL with the data:image/png;base64,... prefix that works immediately in <img> tags, CSS backgrounds, and API payloads. All conversion happens locally in your browser for maximum privacy.
Upload a PNG image file
The tool automatically converts it to Base64
Copy the Base64 data URL output
Use it in HTML: <img src='data:image/png;base64,...'>
Or in CSS: background-image: url('data:image/png;base64,...')
Embed PNG logos and icons in HTML without separate files
Inline transparent PNG images in CSS for UI elements
Create self-contained HTML email templates with PNG graphics
Send PNG data in JSON API requests
Build offline web apps with embedded PNG assets
Share HTML prototypes with embedded PNG images
Optimized for PNG format with transparency support
image/png;base64,... URLs
Fast browser-based conversion (no upload required)
One-click copy to clipboard
Perfect for logos, icons, and transparent images
files stay on your device
Learn more about this tool with our in-depth guides
Master Base64 encoding and decoding with practical examples. Learn when to use it, common pitfalls, and best practices for handling binary data.