Local browser processing

Image to Base64

Generate a Base64 data URL locally with FileReader. Files are not uploaded.

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How to use this tool

  1. Upload an image file such as PNG, JPG, WebP, GIF, SVG, or ICO.
  2. Generate the Base64 data URL.
  3. Copy the generated text or download it as a .txt file.
  4. Clear the output when you are finished.

Best use cases

  • Convert image to Base64 for small icons, placeholders, or examples.
  • Create a data URL that can be embedded in HTML or CSS.
  • Use a Base64 image converter when you need a quick text representation of an image.
  • Inspect how large an embedded image string becomes before using it in code.

Supported formats

  • Input: PNG, JPG/JPEG, WebP, GIF, SVG, and ICO where supported by the browser.
  • Output: Base64 data URL text.
  • Download: .txt file containing the generated data URL.

Privacy and local processing

  • Base64 generation uses the browser FileReader API.
  • Files are not uploaded to a server.
  • Large images create very long text strings, so Base64 is usually best for small assets.

FAQ

What is a Base64 data URL?

A Base64 data URL is text that includes the file type and encoded file data so an image can be embedded directly in HTML or CSS.

Can I convert an image to Base64 without uploading it?

Yes. This tool uses FileReader in your browser and does not upload the file.

Which formats can be converted to Base64?

PNG, JPG, WebP, GIF, SVG, and ICO files can be read as data URLs when supported by the browser.

Should I use Base64 for large photos?

Usually no. Large photos create very long strings and can make HTML or CSS files harder to manage.

Can I download the Base64 result?

Yes. You can download the generated data URL as a .txt file.

Does this tool use Canvas?

No for normal Base64 conversion. It reads the original file directly with FileReader.