Image to Base64
Encode an image as text.
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About Image to Base64
Image to Base64 converts any image into a Base64 data URI right in your browser. Drop or select a PNG, JPG, GIF, SVG, or WebP file and instantly get the full data URI along with ready-to-paste HTML img and CSS background-image snippets, the encoded size, and a one-click copy button for each.
It is completely free with no sign-up, no watermarks, and no upload limits. Everything runs entirely in your browser using the built-in FileReader, so your images never leave your device and are never sent to a server.
Frequently asked questions
- Is this image to Base64 converter free?
- Yes, it is completely free to use with no account, no sign-up, and no limits on how many images you convert. There are no watermarks or hidden fees.
- Are my images uploaded to a server?
- No. The conversion happens entirely in your browser using the FileReader API. Your image is read locally on your device and is never uploaded, stored, or sent anywhere, which keeps sensitive images private.
- What is a Base64 data URI and when should I use one?
- A data URI embeds the image directly into your HTML or CSS as a text string, so the browser does not need a separate file request. It is ideal for small icons, logos, and inline assets. For large images, a normal image file is usually faster.
- Why is the Base64 version larger than my original file?
- Base64 encodes binary data using only text characters, which adds roughly 33% to the size. A 30 KB image becomes about 40 KB once encoded, so data URIs are best kept for small assets.
- Which image formats can I convert?
- You can convert PNG, JPG, JPEG, GIF, SVG, WebP, and BMP images. The tool preserves the original format and MIME type in the resulting data URI.
- How do I use the generated code?
- Copy the data URI to use anywhere a URL is expected, or use the ready-made snippets: paste the HTML img tag directly into your markup, or drop the CSS background-image rule into your stylesheet.