Whitespace in the string?

Newlines are stripped. If decode still fails, you probably lost the header or truncated the payload.

What filename do I get?

decoded-image. Your browser may add an extension from the MIME type.

Base64 to Image — Paste and Download

Paste Base64 or a data URI

Paste Base64 and download a real image

Accepts a data URI or naked Base64. The preview is decoded in the browser, then you download PNG/JPEG/WebP according to the header. Encoding the other way is image to Base64. Check pixels with the dimension checker.

Base64 to image FAQ

Whitespace in the string?: Newlines are stripped. If decode still fails, you probably lost the header or truncated the payload.
What filename do I get?: decoded-image. Your browser may add an extension from the MIME type.

Related image tools

Image resizer

Resize by pixels, percent, or longest side. JPEG, PNG, or WebP out.

JPG compressor

Shrink JPEGs with a quality slider. Stays in your browser.

PNG compressor

Reduce PNG size by scaling or converting to WebP or JPG.