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How to Convert an Image to Base64 for Embedding in Code

Turn a small image into a text string you can paste directly into HTML, CSS, or JSON.

Key takeaways

  • Image to Base64 turns a picture into a Base64 text string you can embed directly in code, instead of linking to a separate file.
  • Useful for small icons, inline email images, or a self-contained HTML/CSS file with no external image dependencies.
  • Not ideal for large images โ€” Base64 text is roughly a third larger than the original binary file.

Converting an image

Open Image to Base64, drop in your image, and copy the resulting string โ€” paste it directly into a `src="data:image/png;base64,..."` attribute in HTML, or wherever your code expects an inline image.

Frequently asked questions

Should I Base64-encode every image on my website?

No โ€” it's best for small, frequently-reused icons or images in a context where avoiding an extra network request matters. For regular photos and larger images, linking to a normal image file is more efficient.

Is this the same tool as the Base64 text encoder?

Related but separate โ€” [Base64 Decoder](/base64) is for encoding/decoding plain text; this tool is specifically for image files.

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