Free Base64 to Image Converter Online
Decode a Base64 string or data URL back to an image — preview it instantly and download. All in your browser.
How it works
Paste Base64 data
Paste a full data URL (data:image/png;base64,...) or just the Base64 string.
Preview
Click Preview or press Ctrl+Enter. The image is rendered in your browser immediately.
Download
Click Download to save the decoded image as a file.
Browser-only
Your data is set as an image src — nothing is sent to any server.
Common use cases
Verifying API image responses
APIs that return images as Base64 are hard to inspect in code. Paste the value here to see the actual image.
Debugging data URIs
Check that a CSS background-image data URI renders correctly before deploying.
Extracting embedded images
HTML documents often embed images as Base64 data URIs. Extract and download them as standalone files.
Database image preview
If your database stores image blobs as Base64, paste the value here to preview without writing code.
Frequently asked questions
Do I need to include the data: prefix?
Both work. If you paste just the Base64 string without the data: prefix, enter the MIME type below and the tool will construct the full data URL.
What image formats are supported?
Any format the browser can render: PNG, JPG, GIF, WebP, SVG, ICO. The MIME type in the data URL determines the format.
Why does my image show as broken?
The Base64 string may be corrupted, truncated, or the wrong MIME type. Make sure you've copied the complete string including any = padding.
Is my data sent to a server?
No. The decoder sets the string as an <img> src attribute — the browser renders it locally. Nothing is transmitted.