What happens if the Base64 string is corrupted?

If characters are missing or invalid, the decoder flags the formatting error and highlights where the syntax broke.

Are pasted strings sent over the internet?

No. The decoding is handled entirely in local browser RAM.

Can I decode Base64 strings extracted from JSON API responses?

Yes. Simply paste the string from your API payload, and the tool will reconstruct the original image file.

How does the tool detect the image format?

It inspects the leading Data URI header or analyzes the initial decoded magic bytes to detect whether the file is PNG, JPG, WebP, or SVG.

Base64 to Image Converter

Decode Base64 strings into downloadable image files.

100% In-Browser

All-In-One StudioBulk + Single

Want to process images in bulk, add compressions, conversions, filters & background removal all in one flow?

Try Image Playground

100% In-Browser PrivacyLocal

Your files and data are processed locally and never leave your device.

Paste Base64 or Data URI String

Decoded Image Preview

Paste a Base64 string on the left to preview image

What is Base64 to Image Converter?

Base64 to Image Decoder parses Base64 encoded strings and Data URIs back into viewable, downloadable image files. Paste any Base64 string extracted from API responses, CSS files, or source code to inspect the image and save it to disk.

Zero-Server Client-Side Guarantee

Unlike legacy online utilities that upload sensitive media and documents to remote cloud storage, Shadow Toolkit executes this entire operation directly within your browser's local runtime. Your raw data never crosses the network.