Black-white threshold
Convert an image to pure black and white using a chosen brightness threshold.
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Black-white threshold — workspace
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How to use: Black-white threshold
Choose an image from your device, or try the sample image.
Review Threshold (0–255), then select “Get result”.
Check the preview. Adjust the settings if needed, then download your image.
What you can do
- Convert an image to pure black and white using a chosen brightness threshold.
What you get
- An edited PNG image with a preview and download.
What you need
- Image
- Choose a local JPG, PNG or WebP image.
- Threshold (0–255)
- Enter a number (0–255).
Try an example
- Input
Try the built-in sample image, then replace it with your own photo.
- Threshold (0–255)
128
Good to know
- PNG output. Up to 20 MB and 24 megapixels. The original stays unchanged.
Your work stays on your device
Your files and entered values are processed in your browser and are not uploaded for processing. The website and any required processing engines still download from the site.
Questions & answers
Is Black-white threshold free?
Yes. Black-white threshold is free to use and does not require an account.
Are my files or entered values uploaded?
Your files and entered values are processed in your browser and are not uploaded for processing. The website and any required processing engines still download from the site.
What result can I save?
An edited PNG image with a preview and download.
What should I check before using the result?
PNG output. Up to 20 MB and 24 megapixels. The original stays unchanged.