Type detection
The decoder checks the Data URI and decoded magic bytes instead of trusting a label alone.
Developer · Free, no signup
Convert Base64 to an image
Paste a Base64 blob and immediately see its detected type, dimensions, and decoded size.
- No watermark
- Stays in your browser
- Real quality controls
Runs here in your browser. Very large values are blocked before decoding to protect the tab.
Your decoded image appears here.
Browser-only tool. The image or Base64 value is not uploaded.
Three clean steps
Get the result, then get on with it
The workspace keeps choices close to the file. Explanations stay down here.
- Paste a Base64 value or Data URI.
- Decode and inspect the detected image.
- Download the original decoded bytes.
Worth knowing
Convert Base64 to an image, with the tradeoffs visible
SVG safety
Decoded SVG is never injected as active page markup.