Image to Base64

Convert an image into a Base64 data URL for HTML, CSS, or JSON.

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How to use Image to Base64

This tool reads an image locally and represents its bytes as a Base64 data URL. The result can be embedded in HTML, CSS, JSON, or another text-based workflow.

  1. Choose the image that needs to be encoded.
  2. Wait for the browser to create the data URL.
  3. Copy the complete value, including its data and MIME-type prefix.

Practical example

A small icon can be converted to Base64 and placed directly in a prototype without hosting a separate image file.

Useful tips

  • Use Base64 mainly for small assets.
  • Keep the MIME-type prefix when pasting into HTML or CSS.
  • Store large images as files because Base64 increases text size.

Limitations

Base64 is an encoding, not encryption. Anyone who receives the text can decode the original image.

Related guide: How Browser-Based Image Tools Protect Your Privacy