Solid Background Editor

Add a color behind transparency or remove one solid color.

Your workspace Nothing to install. No signup.

How to use Solid Background Editor

Adding fills transparent areas. Removing makes pixels near the selected color transparent; it is best for flat backgrounds and is not AI subject detection.

Add your input

Select a supported file from your device.

Choose your settings

Review the options and limits before processing.

Use your result

Check the output, then save or copy what you need.

Good to know

Does this tool upload my input?

No. This tool processes your input on your device. Its libraries load from this site. Your input is not sent to a processing service.

What should I check before using the result?