Convert Image to Black & White
Turn any image into pure two-tone black and white with a clean luma threshold. Great for high-contrast logos, stencils, and line art. Instant preview; one credit for the full-resolution download.
Free preview · No signup · ~10 seconds
Drop your images here
PNG, JPG, WebP or SVG — up to 20 MB
Drop several at once — you can edit them all together in the app.
Runs entirely in your browser. Your image is never uploaded.
Threshold, not desaturation
A true two-tone threshold
Every pixel is measured for brightness and pushed to pure black or pure white at the midpoint — no grays. That is what separates real black and white from grayscale, and it is exactly what stencils, screen-print masks, and single-colour logos need.
Keeps transparency intact
Only the visible pixels are thresholded; the alpha channel is left alone, so a transparent PNG stays transparent and drops onto any background.
Instant and in-browser
The conversion runs on an HTML canvas on your device, so the preview is instant and your image never leaves your browser during editing.
How the threshold decides
Each pixel is first reduced to a single brightness value using luma weighting, then compared to the midpoint. Anything brighter becomes white and anything darker becomes black. The result is a clean two-value image with hard edges and no anti-aliased gray.
Black and white versus grayscale
Grayscale keeps hundreds of gray shades, so photos stay soft and detailed. A black-and-white threshold keeps only two values, which is ideal for cutting, printing, and tracing but can lose fine gradients. Choose based on whether you need detail or a hard-edged stencil.
How to convert image to black & white
Upload your image
Drag and drop a PNG, JPG, WebP, or SVG, or click to browse. The original loads on the left for easy before-and-after comparison.
See the two-tone result
The black-and-white version appears instantly on the right, with every pixel snapped to pure black or pure white at the brightness midpoint.
Download
Grab a free preview to check the contrast, or download the full-resolution PNG with one credit. Transparency is preserved in the export.
Where hard black and white beats gray
Stencils & screen print
Prepare a single-colour mask for stencils, screen printing, or vinyl cutting where every pixel must be one value.
High-contrast print
Make artwork that reproduces cleanly on fax, thermal, and one-colour print with no muddy midtones.
Line art
Reduce a sketch or logo to crisp black lines on white, ready for tracing or vector cleanup.
Bold graphics
Create punchy, high-contrast visuals for posters, stickers, and merch that stay readable at any size.
Or just ask
Describe the edit in your own words
Type what you want changed and the assistant does it on the canvas — each step lands as a layer you can reopen, so nothing it does is baked in.
No edits yet.
Frequently Asked Questions
Related Tools
Guides worth reading
How to Replace a Color in Canva (What's Possible on Elements, and What Isn't on Uploads)
Canva can swap colors on vector elements one swatch at a time. On an uploaded photo or PNG there is no per-color control at all — here is the full picture, including the Duotone approximation and its limits.
How to Remove a Background in Figma (There Is No Built-In Way — Here Is What Works)
Figma has no background removal feature. The honest options are a third-party plugin that uploads your image to its vendor, or a hand-drawn vector mask — plus when each is actually the right call.
How to Make a Duotone in Photoshop (Gradient Map vs Duotone Mode)
Photoshop has two duotone features and the one named Duotone is usually the wrong one. Why Image > Mode > Duotone demands a Grayscale conversion, why Gradient Map is what you actually want, and how to keep it editable.
Make your image black & white
Upload once, get a crisp two-tone result, and download.