Paste a data URI — or just the Base64 part — and see the image inside it. You get its format, dimensions and size, and a button to save it as a file.
Runs entirely in your browser — nothing you enter here is sent to a server.
Data URIs turn up wherever a file had to be squeezed into text: an src attribute in an HTML email, a background-image in a stylesheet, a field in an API response, a row in a database, a line in a log. In that form the image is an unreadable run of letters and digits. Pasting it here turns it back into something you can look at — and save, if you need the file.
A data URI has four parts: the scheme data:, a media type such as image/png, the marker ;base64, and after a comma the content itself. The decoder accepts the whole URI, a CSS url(…) wrapper, or the bare Base64 with nothing in front.
If the media type is missing, the first characters give it away: iVBORw0KGgo is PNG, /9j/ JPEG, R0lGOD GIF, UklGR WebP, PHN2Zy SVG.
The decoded size in bytes is about three quarters of the Base64 length — useful when deciding whether an inlined image should be a file instead.
Strings using - and _ in place of + and /, as found in JWTs and some APIs, are accepted and converted.
Logs and database columns often cut long values. If the image shows only its top part or fails to load, the string is probably incomplete.
Debugging is the main one: checking what an API actually returned in an avatar field, finding out which icon a minified stylesheet embeds, or confirming that an image stored as text in a database is intact. The other is extraction — recovering a logo or a signature image from an HTML email or an exported document when the original file is no longer around.
Paste the Base64 string, with or without the data:image/…;base64, prefix. The image is shown immediately, and "Download image" saves it with the right file extension.
From its first characters. PNG starts with iVBORw0KGgo, JPEG with /9j/, GIF with R0lGOD, WebP with UklGR and SVG usually with PHN2Zy. The decoder recognises these automatically.
The string is most often truncated, wrapped in quotes or other text, or not an image at all. The error message says which check failed.
No. Decoding happens in your browser; nothing is uploaded or stored.
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