Free Base64 to Image Decoder
If you have an encoded string (Data URI) buried in CSS code, database exports, or raw HTML, extracting it into an actual image file can be troublesome. Our free Base64 to Image tool reads valid data URIs and outputs standard, downloadable files (PNG, JPG, SVG, WEBP) securely in your browser.
How to Convert a Base64 string to an Image
- Paste the String: Copy your Base64 encoded string and paste it into the large input field.
- Preview the Image: The tool automatically parses the string. If it's valid, the image preview will appear in the right-hand panel instantly.
- Download: Click the Download button to save the reconstructed image file. The tool automatically detects the correct file extension based on the data URI headers.
Is this tool secure?
Yes. Many developers use Base64 to transfer sensitive documents like signatures or ID scans. Because our Base64 to Image tool relies entirely on client-side JavaScript, the string you paste into the browser is never sent over the internet or saved on our servers.
Frequently Asked Questions
What format should the Base64 string be in?
The tool primarily expects standard Data URIs spanning forms like
data:image/png;base64,iVBORw0KGgo.... If you paste raw base64 data without the
data-uri prefix, the tool will attempt to parse it, but standard Data URIs provide the best
reliable detection for formatting.
Why did the image reconstruction fail?
Reconstruction generally fails if the base64 string is incomplete, truncated from copying
error, or if the string represents a file type other than a standard web image. Ensure you
copied the entire unified string.