Purpose-built tool
Measure alpha coverage, transparent bounds and whether a file contains a usable transparent background.
Transparency Checker
Measure alpha coverage, transparent bounds and whether a file contains a usable transparent background. Everything runs locally on your device.
Private by designRuns locally in browserNo signup needed
No images selected. Files stay on your device.
Processed
Your images never leave your computer.
Image Well Done executes all image algorithms inside your browser memory. We never transmit your image bytes, metadata, or filenames to a remote server.
How to use Transparency Checker
- 1Select one image from your device.
- 2Adjust the labeled controls and check the preview. Analysis.
- 3Read the analysis results; image download is not required.
Browser-local processing
Your input is processed on your device, without uploading it to an image-processing server.
No account required
Open the tool and use it without signing up.
Frequently Asked Questions
What input and result does this tool support?
Read the analysis results; image download is not required.
Is my input uploaded?
No. Processing happens in your browser; your input is not sent to an image-processing server.