Base64 Image Decoder
Turn a Base64 image string back into an actual image you can view and download. If you have ever received a wall of Base64 in an API response and wondered what picture it hides, this tool answers instantly.
Using the Base64 Image Decoder: step by step
- Copy the Base64 image string, with or without the data URI prefix.
- Paste it into the input area and press decode.
- The decoded image renders in the preview panel.
- Download the recovered image as a file if you need it on disk.
What people use the Base64 Image Decoder for
- Inspecting images embedded in API responses or database records.
- Verifying that a Base64 payload really contains the image you expect.
- Recovering images from email templates or JSON exports.
- Debugging broken data URIs that refuse to render in your application.
Inside the Base64 Image Decoder
The tool strips any data URI prefix such as data:image/png;base64, and hands the remaining string to the browser's image decoder, which renders it natively. Supported formats include anything your browser can display: PNG, JPEG, GIF, WebP, and SVG. Decoding happens in your browser only, so embedded graphics from private payloads are never exposed to an external service.
Limitations worth knowing
Very large Base64 strings may take a moment to decode, and corrupted input produces an error instead of an image.
Base64 Image Decoder FAQ
Do I need to remove the data:image prefix first?
No, the decoder accepts strings with or without the data URI prefix.
Which image formats are supported?
Any format your browser can render, including PNG, JPEG, GIF, WebP, and SVG.
Can I save the decoded image?
Yes, the download button saves the decoded result as an image file.
Last reviewed: October 2026.