Base64 to Image
Base64
Image
The decoded image will appear here.
How to use
1.
Paste a data URL or raw Base64 string into the Base64 panel - it can still be inside quotes, an HTML img tag or a CSS url()
2.
Check the preview in the Image panel, with the detected format, dimensions and decoded file size
3.
Click Download to save the image with the right file extension
Common uses
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Previewing images embedded in API responses or database fields
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Saving an image that is inlined in HTML or CSS source as a file
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Recovering an image from a Base64 string in your code
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Verifying that an image was encoded correctly
Frequently asked questions
What image formats are supported?
PNG, JPEG, WebP, GIF, AVIF, BMP, ICO and SVG are detected from the data itself and previewed. TIFF, HEIC and JPEG XL are recognized too; if your browser cannot display one (most browsers other than Safari cannot show TIFF or HEIC), you can still download it.
Do I need the "data:image/..." prefix?
No. The tool accepts full data URLs and raw Base64 strings, including URL-safe Base64 (with - and _) and strings without = padding or split across lines. It also finds a data URL inside quotes, an HTML img tag, a CSS url() or a JSON string, so you can paste a line straight from code, and URL-encoded SVG data URLs (data:image/svg+xml,%3Csvg...) work too.
Is my data sent to a server?
No. Decoding happens entirely in your browser - the Base64 string is never transmitted to any server.
How do I get the original file size?
The decoded file size is shown under the preview, after the image format and dimensions. It is roughly three quarters of the Base64 string length, since Base64 encoding adds about 33%.
Can I download the decoded image?
Yes. Download saves it named after its dimensions, for example image-1600x1000.jpg - or just image.tiff, image.heic and so on when your browser cannot display it. The file extension matches the format detected in the data, even when the data URL declares a different type.