Base64 to Image
Decode a base64 string back into a viewable image.
How to use
- 1 Paste a base64 string or full data URI into the box.
- 2 If it is a bare payload, choose the image type from the dropdown.
- 3 Click Decode to image to preview the result.
- 4 Click Download image to save it with the right extension.
About Base64 to Image
Base64 to Image turns an encoded text blob back into the picture it represents.
Paste a full data URI such as data:image/png;base64,... or just the bare base64 payload, and the tool reconstructs the original file, shows you a live preview and lets you download it — all without sending a single byte to a server.
It is forgiving about input.
Whitespace and line breaks inside the payload are stripped automatically, the MIME type is read from the data URI header when present, and when you paste a bare payload with no header you can pick the image type yourself from a dropdown.
The tool validates the base64 before doing anything, so malformed strings get a clear message instead of a broken image, and it confirms the decoded bytes really are a valid image before offering the download.
This is the natural counterpart to embedding images as data URIs in HTML, CSS or JSON: developers often end up with a long base64 string in a config file, an API response or a stylesheet and need to see what it actually is.
Because the decode happens with the browser Canvas and Fetch APIs against an in-memory data URI, the content never touches the network, making it safe for tokens, internal assets and anything you would rather keep private.
The download is named with the correct extension for the detected format.
FAQ
Does my base64 data get uploaded anywhere?
No. The string is decoded into an in-memory image using the browser Canvas and Fetch APIs, so it never leaves your device.
Do I need the full data: URI prefix?
No. A bare base64 payload works too — just pick the matching image type from the dropdown so the download gets the right extension.
Why does it say my image is invalid?
The base64 decoded successfully but the resulting bytes are not a picture the browser can render. Double-check you copied the entire string.