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Image to Base64

Convert any image file into a Base64 encoded string for CSS or HTML embedding.
Local-first

Select an image to encode

Browse on this device · JPG, PNG, WebP · Max 50.0 MB

Select an image to enable encoding.

How this tool works

What it accepts, how to use it, and where your input is processed.

Embed images directly into your code! Our Online Image to Base64 Encoder creates portable data strings that eliminate the need for external image hosting in your CSS, HTML, or JSON files.

Best For:

  • Email Templates: Embed icons directly so they display without needing 'Download Images' permission.
  • Small Assets: Perfect for favicons, tiny icons, and loading spinners to reduce HTTP requests.
  • CSS backgrounds: Keep your stylesheets self-contained by embedding background textures.
Need an extra feature or found an edge case?Send Feedback

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