Base64 to Image Converter
Paste a Base64 or data URI string, preview the decoded image instantly, and download it — runs 100% in your browser with nothing uploaded.
🔒 Decoded in your browser — nothing is uploaded.
What this Base64 to image tool does
Paste a full data URI such as data:image/png;base64,… and the tool instantly decodes it, shows a live preview of the picture, and gives you a Download button to save it as a real image file. If you only have a raw Base64 blob with no data: prefix, just pick the image type (PNG, JPEG, WebP, GIF, SVG or BMP) and the same preview and download appear. You can also copy the complete data URI back out with one click, which is handy when you started from raw Base64 and want the ready-to-embed version.
When to decode Base64 into an image
Base64 image strings show up all over the web: inline in CSS backgrounds, embedded in HTML and SVG, returned by APIs and JSON payloads, or stored in databases and JWT-style tokens. When you find one of these long strings and need to actually see what it is, this tool turns it back into a viewable, downloadable image without installing anything. Because everything is decoded locally with the browser's own APIs, it works offline and is safe for sensitive or private images that should never leave your machine.
Frequently asked questions
Is my image or Base64 string uploaded anywhere?
No. The string is decoded entirely in your browser with JavaScript. Nothing you paste is sent to a server, stored, or logged — you can even use the tool offline.
What is the difference between a data URI and a raw Base64 string?
A data URI includes a header like data:image/png;base64, that tells the browser the image type, so it previews immediately. A raw Base64 string is just the encoded bytes with no type, so you pick the image format and the tool builds the data URI for you.
Which image formats can I decode and download?
Any format your browser can render, including PNG, JPEG, WebP, GIF, SVG and BMP. The downloaded file uses the correct extension based on the image type.