Purpose-built tool
Adjust alpha without changing RGB pixels and export a transparent PNG locally.
Change Image Opacity
Adjust alpha without changing RGB pixels and export a transparent PNG locally. Everything runs locally on your device.
Private by designRuns locally in browserNo signup needed
Extract Alpha Channel. Select one image from your device. Review the image preview, then download the result using the available format.
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 Change Image Opacity
- 1Select one image from your device.
- 2Adjust the labeled controls and check the preview. Opacity.
- 3Review the image preview, then download the result using the available format.
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?
Review the image preview, then download the result using the available format.
Is my input uploaded?
No. Processing happens in your browser; your input is not sent to an image-processing server.