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Convert an image to Base64

Convert images to Base64 strings and data URIs ready for HTML, CSS and JSON. Copy in one click. Free, private, and encoded in your browser.

  • Files never leave your device
  • Free, no sign-up
  • No watermark
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About Image to Base64

Encode an image as a Base64 string or a complete data URI you can paste straight into HTML, CSS, JSON or an email template. Embedding small icons and logos this way saves an extra network request and keeps everything in one file. Drop a JPG, PNG, WebP, GIF, SVG, BMP or ICO file, choose the output style and copy it. Encoding happens in your browser.

How to use Image to Base64

  1. 1

    Drop the image you want to encode.

  2. 2

    Choose plain Base64 or a full data URI.

  3. 3

    Copy the output in one click.

  4. 4

    Paste it into your HTML, CSS or code.

Why use this tool

  • Plain Base64 or ready-to-use data URI output.
  • Supports JPG, PNG, WebP, GIF, SVG, BMP and ICO.
  • Snippets for HTML and CSS usage.
  • One-click copy.
  • Files never leave your device.

Frequently asked questions

A data URI embeds the file directly in text, for example data:image/png;base64,…, so a browser can display it without downloading a separate file.

For small icons and logos. Large images become about a third bigger as Base64 and are better served as normal files.

Use it as background-image: url("data:image/png;base64,…").

Use Base64 to Image.

Images up to 10 MB are supported, though such large strings are rarely practical.

No. Your images are processed by your own browser and never sent to CodeMites or any other server.

Yes. There is no account, no watermark and no usage limit. The tool runs in your own browser, so there is no server cost to charge you for.

Yes. It runs in any modern browser on Android and iOS as well as on Windows, macOS and Linux, with nothing to install.

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