Question 1

When should I use a Base64 image?

Accepted Answer

For small images such as icons and logos in emails or single HTML pages — the image travels inside the code and can't break. For large images, use a normal image file.

Question 2

Why is the Base64 bigger than the file?

Accepted Answer

Base64 is always about a third longer than the original. That is how the encoding works, not an error.

Question 3

Is it free? Do I need an account?

Accepted Answer

It is completely free and needs no sign-up.

Question 4

Which image types can I use?

Accepted Answer

JPG, PNG, WEBP, GIF, BMP and AVIF, up to 5 MB each.

Question 5

Which output should I pick to paste into a web page?

Accepted Answer

Pick "img tag" to paste into an HTML page or email, "CSS" to use it as a background image in your stylesheet, or "Data URI" if you need the complete string to place somewhere else.

Image to Base64

How to convert an image to Base64

Frequently asked questions

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