Client-side engine
PNG background filler
Fill PNG transparency with a color you choose. Free. No upload.
- PNG
- WebP
- 20 MB per image
- About 50 megapixels
Workflow
How to use PNG background filler
Three steps. Your file is processed in this browser and is not uploaded by this tool.
- 01
Choose a PNG or WebP.
Choose a PNG or WebP.
- 02
Pick a background color.
Pick a background color.
- 03
Download PNG or JPEG.
Download PNG or JPEG.
Direct answers
Essential questions answered
Short answers for search and answer engines. Same facts as the FAQ.
How do I add a background to a PNG?
Choose a PNG or WebP, pick a color, then download PNG or JPEG.
Is this background removal?
No. It fills transparency; it does not cut a subject out.
Is the file uploaded?
No.
Practical applications
Good for everyday workflows
Put a white background behind a logo
Paint a solid background behind a transparent PNG, then download PNG or JPEG.
Flatten a transparent PNG for email
Paint a solid background behind a transparent PNG, then download PNG or JPEG.
Prepare a PNG for a form that rejects alpha
Paint a solid background behind a transparent PNG, then download PNG or JPEG.
Got questions?
Frequently asked questions
Is PNG background filler free?
Yes on ToolStudio.
Can I export JPEG?
Yes. JPEG uses the fill color you chose.
Is my image uploaded?
No.
Related utilities
Related image tools
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Flatten a PNG onto a background color and save a JPEG. Transparency becomes that color.
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Reduce JPEG, PNG or WebP files in this browser. Re-encoding strips metadata.
Image color palette
Upload a photo and get a palette of dominant colors with HEX and RGB values to copy.
Pick a tool. Get it done.
Free browser utilities on ToolStudio. No account. Most tools keep files on this device.