Question 1

Is this Image to Base64 converter free to use?

Accepted Answer

Yes — completely free, with no sign-up, no account, and no limit on how many images you convert.

Question 2

Does converting to Base64 change my image?

Accepted Answer

No. The exact bytes of your original file are what get encoded, so the image itself — its quality, dimensions, and transparency — is completely unchanged. Decoding the result gives back the identical file.

Question 3

What's the difference between the two output options?

Accepted Answer

The Data URL includes a short “data:image/...;base64,” header that tells a browser or app what kind of image it is and lets you paste it straight into an <img> src or a CSS background-image. Turning that option off gives you just the raw Base64 text.

Question 4

Why is the Base64 text so much bigger than my image file?

Accepted Answer

Base64 encoding represents binary data as text, which takes roughly a third more space than the original file. A 300 KB image becomes roughly 400 KB of Base64 text.

Question 5

Is my image uploaded anywhere?

Accepted Answer

No. The file is read and encoded entirely inside your browser — it never leaves your device, and nothing is stored on a server.

Image to Base64

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