Click to upload or drag & drop a photo
Processed entirely in your browser — nothing is uploadedBest used for line art and signatures
Because every pixel is pushed to either pure black or pure white, this tool works best on high-contrast source material like scanned signatures, sketches, or text on a plain background. Running it on a detailed photograph will look quite stark since all of the mid-tones are lost — if you want to preserve more tonal detail, our grayscale tool is the gentler option.
How to use Convert Photo to Black & White
- Upload the photo you want to edit.
- Adjust any sliders, colours, or options shown above the upload box — the preview updates as you go.
- Compare the before and after side by side.
- Download the edited photo once it looks the way you want.
Tips for best results
- Try a few different settings before downloading — most sliders here update the preview instantly, so it's quick to compare options.
- Work from your best-quality original; effects applied on top of an already-compressed photo tend to look rougher.
- If you're combining this with another tool (like compressing afterwards), apply this effect first, then compress last.
❓ Frequently asked questions
Can I apply this more than once to stack the effect?
Yes — download the result and re-upload it to apply the effect again, though stacking some effects can look over-processed quickly.
Does this work on PNG images with transparency?
Transparent areas are generally preserved unless the tool specifically converts to JPG, which fills transparency with white.
Why does my photo look so extreme after this?
This tool converts every pixel to pure black or white with no in-between grey, which is intentionally stark — for a softer result, try grayscale instead.
Is this good for scanning signatures?
Yes — this is exactly the kind of content this filter suits best, since it sharpens the line between ink and background.
Can I adjust how aggressive the threshold is?
This tool uses a fixed midpoint threshold; for finer control over the cutoff, a dedicated photo editor would be needed.