Create Black and White PNG
Force every pixel on the canvas into either pure white or absolute black. Runs entirely in your browser, so your data never leaves your device.
Drop a file here, or click to browse
Files never leave your device
Output
The result appears here as you type.
How to use Create Black and White PNG
- 1. Upload your PNG. Add the photo you want reduced to pure black and white, such as photo.png. Higher-contrast source images produce more balanced results at a mid-range threshold.
- 2. Set the threshold. Drag Threshold (0-255) to decide the brightness cutoff where a pixel turns to black instead of white. A lower value keeps more of the image white, a higher value keeps more black.
- 3. Download the 1-bit PNG. Save the resulting image, where every pixel has been forced to pure black or white, and use it for a stark, high-contrast graphic or print effect.
When to use Create Black and White PNG
Create Black and White PNG forces every pixel on the canvas into either pure white or absolute black, with nothing in between. Create Black and White PNG is a harder edge than simple grayscale, useful whenever a design calls for a true 1-bit, threshold-based look rather than a full range of gray tones.
- Preparing line art for engraving or etching. A maker preparing a design for a laser engraver needs pure black-and-white pixels since the machine's software treats every pixel as either burn or no-burn.
- Creating a bold, high-contrast poster effect. A designer wants a stark, graphic poster look and thresholds photo.png at a chosen cutoff to force it into pure black and white regions.
- Testing how a design reads at 1-bit depth. A developer working with a monochrome display checks how a UI screenshot looks once forced to pure black and white, since that is exactly how the hardware renders it.
Examples
1-bit look
Input
photo.png + threshold 128
Output
photo.png with every pixel forced to pure black or white
About the Create Black and White PNG tool
Create Black and White PNG runs as plain JavaScript in your browser tab, with no server behind it. Force every pixel on the canvas into either pure white or absolute black. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's PNG Tools section, 108 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with the Threshold (0–255) setting, and the result refreshes the moment you change it. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is Create Black and White PNG free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Are my files uploaded to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
Which files does Create Black and White PNG accept?
It accepts PNG images. There is no file size cap imposed by a server; very large files are limited only by your device's memory.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.