Those Boring Tools
Image ToolsPrivate by design

Image to Base64 Converter

Convert an image file into a Base64-encoded data URI you can paste directly into HTML, CSS, or JSON — processed entirely on your device.

How to use this tool

  1. 1Add an image file.
  2. 2Copy the generated data URI or CSS background-image snippet.
  3. 3Paste it wherever you need an embedded image.

Frequently asked questions

When should I use a Base64 data URI instead of a normal image file?+

It's handy for small icons or images where you want to avoid an extra HTTP request, but it inflates file size by roughly 33% and isn't cached separately — best for small images only.

Keep the boring tools boring.

If this saved you five minutes of nonsense, you can help keep the free tools running.

Buy the toolbox a coffee