Image to Base64
Turn an image into a Base64 data URI for HTML or CSS — or decode Base64 back into an image.
- Processed locally — your files never leave your device
- Free, no sign-up
- No file limits
How to use Image to Base64
- 1
Choose Image → Base64 and drop an image — or Base64 → Image and paste a string.
- 2
Pick the output: data URI, plain Base64, HTML <img> or CSS.
- 3
Copy the code or download the decoded image.
Features
- Both directionsEncode images and decode Base64 strings back into files.
- Ready-made snippetsGet an <img> tag or CSS background-image in one click.
- PrivateNothing is uploaded — conversion happens in your browser.
Frequently asked questions
When should I inline images as Base64?
For small icons and sprites, to save an HTTP request. Large photos are better as normal files.
What if my Base64 has no data: header?
The image type is detected automatically from the file's first bytes.
Is it free?
Yes.