About this tool
Fill Background lets you add a solid colour background to any transparent PNG — instantly and privately in your browser. Choose any colour from the picker or your saved history, then download the filled image ready for use.
How it works
- 1Upload a PNG with a transparent background.
- 2Pick a fill colour from the colour picker.
- 3Previously used colours are saved and shown for quick re-use.
- 4Download your image with the background filled in.
Common use cases
- ✓Adding white backgrounds to product images for e-commerce
- ✓Preparing transparent logos for presentations
- ✓Creating opaque versions for JPEG export
- ✓Filling backgrounds before printing
Privacy first. Fill Background runs entirely inside your browser using the HTML5 Canvas API. Your images are never uploaded to any server, stored anywhere or shared with third parties. Everything happens locally on your device.
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