Convert Base64 to Image Online for Free
This tool reverses the process of image-to-base64 encoding: paste in a base64 string or a full data URI, and get back a real, downloadable image file. It's built for developers debugging an embedded image, recovering a picture from a JSON payload or database field, or just checking what a base64 string actually decodes to.
Convert Base64 to Image Online for Free
This tool reverses the process of image-to-base64 encoding: paste in a base64 string or a full data URI, and get back a real, downloadable image file. It's built for developers debugging an embedded image, recovering a picture from a JSON payload or database field, or just checking what a base64 string actually decodes to.
Paste your string into the text box — either a complete data URI like `data:image/png;base64,iVBORw0KGgo...`, or a bare base64 string with no prefix. If your input includes the `data:` prefix, the tool reads the MIME type directly from it and decodes accordingly. If you're pasting a bare base64 string with no prefix, use the format dropdown to tell the tool whether to treat it as a PNG or JPG, since raw base64 data doesn't carry that information on its own.
Click "Convert to image" and the tool decodes the base64 text back into binary image data locally in your browser, then triggers a download of the resulting file. If the string isn't valid base64 — a common issue when a stray character or line break gets copied along with it — the tool shows a clear error rather than producing a broken file, so you know immediately if something needs re-copying.
This is a text-in, file-out utility rather than a typical drag-and-drop tool, since there's no image to upload in the first place — just a string to decode. Everything happens locally using standard browser APIs, so the data you paste in is never sent anywhere.
Common questions
Not necessarily — if you include the full data URI prefix, the tool reads the correct MIME type from it automatically. If you paste a bare base64 string with no prefix, use the format dropdown to specify whether it should be treated as PNG or JPG.
This usually means a stray character, extra whitespace, or a line break was accidentally included when the base64 string was copied. Try copying the string again, making sure to select the entire value with nothing extra attached.
Yes — if the image was stored as a base64 string (a common pattern in JSON payloads and some database fields), paste just that string value in here to decode it back into a downloadable image file.
No — decoding happens entirely in your browser using standard JavaScript APIs. Whatever you paste in is never transmitted to a server.
If your string includes a `data:` prefix, any MIME type in that prefix is used as-is, so other image formats will still decode correctly. The format dropdown only matters as a fallback for bare base64 strings with no prefix.