Make PNG Transparent
Knock out a solid colour to give your PNG a transparent background
Erase a solid background from your PNG
A transparent background lets a logo, icon or product sit cleanly on any colour or photo instead of inside an obvious box. If your image has a flat, single-colour backdrop — a plain white studio shot, for example — you can lift that colour out in one step.
This tool works by colour keying: you pick the colour to remove and a tolerance for how strict the match should be, and the matching pixels become transparent. It all runs in the browser, so even unreleased artwork stays on your device.
How to make a PNG transparent
- Drop a PNG into the box above, or click to choose one.
- Pick the background colour you want to knock out.
- Adjust the tolerance until the edges look clean against the checkerboard.
- Click Download transparent PNG to save the result.
Getting the best result
Start with a flat background
Colour keying shines on solid backdrops. The more uniform the colour behind your subject, the cleaner the cut-out will be.
Tune the tolerance
Nudge the tolerance up to catch soft edges and slight shading, but not so far that it starts eating into your subject.
Real alpha output
The result is a genuine transparent PNG, ready to drop onto slides, websites or coloured backgrounds without a white halo.
Frequently Asked Questions
Are my images uploaded to make them transparent?
No. The colour is removed by your browser on your own device, so the PNG never leaves your machine and nothing is stored online.
How does the transparency work?
You pick the colour you want gone, and every pixel that matches it becomes transparent. The tolerance setting controls how close a pixel must be to that colour to be removed.
Will it work on any background?
It works best on a flat, solid background such as plain white. Busy photographic backgrounds have too many shades for a single colour key to remove cleanly.
What does the tolerance setting do?
A low tolerance removes only pixels that closely match the chosen colour, while a higher tolerance also clears nearby shades, which helps with slight gradients or anti-aliasing.
What format is the result?
The image is exported as a PNG with a real alpha channel, so the transparency is preserved wherever you use it.