Image to Base64
Optimizing web performance can often mean reducing server requests. Our Image to Base64 Converter allows you to encode your images directly into a text-based format that can be embedded into your CSS or HTML files. This is perfect for small icons, placeholders, or data transmission within APIs.
Turn any visual asset into a portable string in milliseconds.
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How to Encode Images to Base64
- 1
Upload the image file you want to encode.
- 2
The tool will instantly generate the long Base64 string for you.
- 3
Choose to copy the 'Raw Data', 'HTML Data URI', or 'CSS Background' code.
Developer Workflow
When to use Base64 images?
Base64 is best for small icons or images where speed is critical and you want to avoid an extra HTTP request to the server.
File Size Increase
Note that Base64 encoding usually increases the final file size by about 33% compared to the original binary image.
Frequently Asked Questions
Is it secure for private photos?
Yes. No image is ever uploaded. The encoding happens entirely within your browser's memory.
What is the HTML Data URI?
It is a specially formatted string `<img src="data:image/png;base64,..." />` that lets you use the text directly in place of an image URL.
Why Use This Tool?
- ✓Instant one-click encoding
- ✓Supports HTML and CSS formats
- ✓Reduces website server requests
- ✓Private and secure local conversion