Image to Base64 Converter
Convert images to Base64 encoded strings online
Drag & drop an image here or
About the Image to Base64 Converter
The Image to Base64 Converter turns an image into a Base64 data URL that you can embed directly in HTML, CSS or JSON, with no separate file to host.
How it works
The browser reads the file and encodes its bytes as Base64 text, prefixed with its type (for example data:image/png;base64,…). Base64 uses 4 characters for every 3 bytes, so the result is about 33% larger than the original file.
How to Use Image to Base64 Converter
Enter Your Data
Drop an image or click to choose one.
Run the Tool
The Base64 string appears instantly.
Use the Result
Copy it into an <img src> or CSS url().
Why Use Our Image to Base64 Converter?
100% Free
No registration, no hidden fees, no limits — ever.
Privacy First
All processing runs in your browser. Your data never leaves your device.
Mobile Friendly
Works perfectly on phones, tablets, and desktops.
Instant Results
Results appear as soon as you run the tool.
Frequently Asked Questions
Q. When should I use Base64 images?
For small icons and images under a few KB, where saving an extra request matters. Large images are better served as normal files that browsers can cache.
Q. Is my image uploaded?
No. Encoding happens in your browser.
Q. How do I use it in CSS?
background-image: url("data:image/png;base64,…"); paste the full string, including the data: prefix.