Image to Base64 / Data URI Converter
Convert images to Base64 data URIs for HTML, CSS and JSON — or paste Base64 to preview and download the image. Runs in your browser.
How to use
- 1Drop an image to get its Base64 data URI, plus ready-made HTML and CSS snippets.
- 2Or paste a Base64 string to preview it and download the image.
Frequently asked questions
When should I inline images as Base64?
For tiny icons and placeholders, to save a request. Larger images are better as normal files — Base64 is about 33% bigger and can't be cached separately.
Why is the Base64 bigger than the file?
Base64 encodes every 3 bytes as 4 characters, adding about a third to the size.
Is my image uploaded?
No — conversion happens entirely in your browser.