Images · runs locally
Convert Base64 back to an image
Pasted data URI or raw Base64 — decoded into a real image file you can save.
Runs on your device
No uploads, ever
Free, no account
- 1Paste the Base64
With or without the data:image/... header — the tool works either way.
- 2Check the preview
If it's valid, you'll see the image. If not, you'll see exactly what's wrong with the input.
- 3Save the file
The original format is detected from the data itself.
Questions people actually ask
It says the Base64 is invalid. Now what?
Usual suspects: the string is truncated, wrapped in quotes, or has stray whitespace mid-string. Everything after 'base64,' is the part that matters.
Can it decode huge strings?
Yes, within browser memory — several MB of Base64 is routine.