Instant conversion
100% browser based
Image preview support
One click copy
Image to Base64 Converter turns any image file into a Base64-encoded data string that you can embed directly inside HTML, CSS or JSON — no external file hosting required. It's handy for small icons, inline email images, or quick prototypes where an extra HTTP request isn't worth it.
src attribute or CSS background-imageYes! Image to Base64 Converter is 100% free with no registration required.
No, the conversion happens entirely in your browser using the FileReader API.
There's no hard limit, but very large images (several MB) may slow down your browser — it works best for icons and small graphics.
Base64 images avoid an extra HTTP request, which can help for very small, frequently used icons.