No. Composition runs on the local Canvas; nothing leaves your browser. The background image is also kept locally.

Which input formats are supported?

JPEG / PNG / WebP. The output keeps the original format and extension. Use PNG or WebP if you need to preserve transparency (JPEG has no alpha).

Can I add a background to a JPEG photo too?

Yes. JPEGs have no transparency, so set Padding > 0 to add a margin on all sides — that margin becomes the background. With transparent PNGs, even Padding 0 fills the transparent areas.

What color formats are supported?

Only 6-digit hex codes #rrggbb (e.g. #ffffff, #1e3a8a). 3-digit shortcuts (#fff) and rgba() are not supported.

How do I avoid the background image being stretched or cropped?

Choose contain in Fit to preserve the aspect ratio and fit inside the frame (may leave gaps). cover crops the background to fully fill the frame.

Can I target a specific 1:1 or 16:9 canvas?

Not yet — only percentage padding relative to the source width is supported. Aspect-ratio targets are on the consideration list.

Back to Image

Add image background — solid color or another photo overlay

Composite a solid color (hex code) or another image as the background for transparent PNGs and photos. Runs on the local Canvas — nothing leaves your browser. Either fill the original transparent areas or add padding on all sides and let the background wrap around. Batch-process and download as a ZIP. Output keeps the source format (PNG / JPEG / WebP).

image

How to use

Drop images (batch supported). In Solid color mode set a hex code (#rrggbb); in Image mode pick a background image and choose cover / contain. Padding 0 keeps the original size and only paints transparent areas; > 0 adds padding on all sides and lets the background wrap around. Click Apply background to composite on Canvas. Download per file or as a single ZIP. Output keeps the source format (PNG / JPEG / WebP).

FAQ

Are images uploaded?: No. Composition runs on the local Canvas; nothing leaves your browser. The background image is also kept locally.
Which input formats are supported?: JPEG / PNG / WebP. The output keeps the original format and extension. Use PNG or WebP if you need to preserve transparency (JPEG has no alpha).
Can I add a background to a JPEG photo too?: Yes. JPEGs have no transparency, so set Padding > 0 to add a margin on all sides — that margin becomes the background. With transparent PNGs, even Padding 0 fills the transparent areas.
What color formats are supported?: Only 6-digit hex codes #rrggbb (e.g. #ffffff, #1e3a8a). 3-digit shortcuts (#fff) and rgba() are not supported.
How do I avoid the background image being stretched or cropped?: Choose contain in Fit to preserve the aspect ratio and fit inside the frame (may leave gaps). cover crops the background to fully fill the frame.
Can I target a specific 1:1 or 16:9 canvas?: Not yet — only percentage padding relative to the source width is supported. Aspect-ratio targets are on the consideration list.

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