What does this tool do?
Image to Base64 is a free tool that instantly converts an image (PNG, JPG, GIF, SVG, WebP, ICO) into a Base64 Data URL right in your browser. It's the practical way for developers to embed small icons and logos into CSS or HTML without an extra HTTP request.
How to use it
- Adjust the values and options.
- See the result in the live preview.
- Copy the generated CSS/code into your project.
What it does and how to use it
Drag and drop an image or click to pick one, and the tool reads the file and produces a full Data URL (data:image/png;base64,...). You'll see the file name, MIME type, original size, Base64 size, and character length. Use 'Copy Data URL' to paste straight into a src or CSS, or 'Copy Base64 only' to grab the raw encoded string. Everything runs on your device.
When to embed and when not to
Base64 embedding is ideal for tiny icons, email signatures, and single-file HTML templates because it removes a separate network request. However, Base64 encoding inflates the file by roughly 33%, so embedding large photos slows the page and defeats browser caching. Use it for logos and SVG glyphs; for hero photos, prefer a normal file link instead.
Frequently asked questions
What's the difference between Data URL and Base64 only?
The Data URL is the complete string including the 'data:image/png;base64,' prefix, ready to drop into a src or CSS url(). 'Base64 only' is the raw encoding after the comma, which is what you want when placing it in an API body or a JSON field.
Which image formats are supported?
Any image type the browser can read, including PNG, JPG, GIF, SVG, WebP, and ICO. The MIME type is detected automatically from the file and written correctly into the generated Data URL.
How do I use it as a CSS background?
Just paste the copied Data URL as background-image: url("data:image/..."). The tool also shows a ready-made CSS usage example at the bottom.
Is Image to Base64 free?
Yes. Image to Base64 and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. Image to Base64 works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.