Make image transparent

Instantly remove white or black backgrounds from any image and convert them to a transparent PNG — entirely in your browser. No uploads, no sign-up, no server. Your image never leaves your device.

Upload a JPG, PNG, or WEBP image. The tool converts each pixel’s brightness to an alpha (transparency) value — bright pixels become transparent, dark pixels stay visible, or the other way around. You can use the direct grayscale formula for smooth gradual transparency, or set a hard threshold to snap pixels to fully transparent or fully opaque.

White and black background removal is one of the most common tasks in graphic design, document scanning, and photo editing. Common use cases include:

• Cleaning up scanned diagrams, sketches, or handwritten notes for use on colored slides or websites
• Removing white backgrounds from logos and illustrations without Photoshop
• Making scientific figures and charts transparent so they layer cleanly over other visuals
• Preparing images for print-on-demand, stickers, or merchandise where transparency matters
• Extracting dark ink illustrations from light paper scans

How to use it:

Download your transparent PNG instantly

Drop your image onto the upload area or click to browse

Choose whether to make white or black pixels transparent

Toggle the threshold on or off — without a threshold, pixel brightness maps directly to alpha for smooth gradients; with a threshold, only pixels above (or below) the cutoff become transparent

Click Process and preview the result on a checkerboard background

This tool works completely client-side using the browser’s Canvas API, meaning it’s fast, private, and works offline once loaded. It’s ideal for designers, students, scientists, and anyone who needs quick PNG transparency without installing software like Photoshop, GIMP, or Python’s Pillow library.