Add a Background Colour to an Image
Fill the transparent areas of a PNG with a solid colour. The fastest way to make a cut-out safe for JPG, email, and anywhere transparency breaks.
Free preview · No signup · ~10 seconds
Drop a transparent PNG
PNG, JPG, WebP or SVG — up to 20 MB
Drop several at once — you can edit them all together in the app.
Runs entirely in your browser. Your image is never uploaded.
What adding a background changes
Filling behind, not painting over
The colour is composited underneath your image, so it only appears where pixels are transparent. Your subject is never covered, and semi-transparent edges blend into the new colour instead of against a checkerboard.
The black square problem
Some apps render transparency as black rather than white. A transparent logo that looks right on a white page can turn into a black block in a messaging app, an email client, or a slide template. Filling the background yourself decides the answer instead of leaving it to the renderer.
What JPG does to transparency
JPG has no alpha channel, so converting a transparent PNG straight to JPG fills the gaps with whatever the encoder defaults to, which is usually white. Choosing the colour first means the result is deliberate rather than accidental.
Choosing the colour
Match the surface the image will sit on. For a white page use pure white, for a dark interface sample the actual background, and for print ask for the paper colour. A near-miss is more visible than an obvious contrast, because the eye finds the rectangle edge instantly.
The canvas is unchanged
Only the transparent pixels are filled. The width and height stay exactly as they were, so nothing shifts and no padding is added. To grow the canvas as well, use the Add Padding tool.
How to add a background colour to an image
Upload your image
Drop in a transparent PNG, or any image if you just want to flatten it. The original stays on the left.
Pick the background colour
Choose a hex value. The fill appears behind your subject immediately, so you can see how the edges blend against it.
Download
Take a free preview, or download the full-resolution file with one credit.
Where a solid background is needed
Email and messaging
Stop a transparent logo from turning into a black block in clients that do not handle alpha.
Preparing for JPG
Decide the background colour yourself instead of letting the encoder default to white.
Print artwork
Give a cut-out a defined background so the printer is not guessing what sits behind it.
Slides and documents
Match a logo to the exact slide or page colour so no rectangle edge shows.
Or just ask
Describe the edit in your own words
Type what you want changed and the assistant does it on the canvas — each step lands as a layer you can reopen, so nothing it does is baked in.
No edits yet.
Frequently Asked Questions
Related Tools
Guides worth reading
How to Fix Blurry or Fringed Edges on a Transparent PNG
Why your transparent PNG has a white halo, a grey fringe or soft edges — the four real causes, how to tell them apart in seconds, and the fix for each.
SVG vs PNG for Logos: Which File Do You Actually Need?
What SVG and PNG really are, where each one wins, why your developer keeps asking for the SVG, and the three files that cover almost every request.
How to Make a Duotone Image in Figma (Building One From Blend Modes)
Figma has no duotone effect. You assemble one from a desaturated image and two blended rectangles — here is the layer stack, the order that matters, and an honest account of what it costs to maintain.
Add a background colour
Upload a transparent PNG, pick a colour, and download the filled result.