How it works
Complete the job in three clear steps
- Choose a JPG, PNG, WebP, or BMP image from this device.
- Run the lightweight U2-Net foreground model locally in your browser.
- Review the edges and download the generated PNG.
Private on-device image AI
Change Image Background Online
Replace a detected photo background with another image locally while keeping the main subject at full resolution.
Free to use Your image and generated result stay in this browser. Lucaden serves the reusable AI model, but never receives the selected image.
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Important
Check the result before relying on it
Keep an untouched copy of important source files. Browser processing depends on available device memory, and you should inspect every downloaded result before deleting the original.
Practical details
What this Lucaden tool does
Replace a detected photo background with another image locally while keeping the main subject at full resolution.
This is segmentation and compositing, not generative relighting. Check subject edges, perspective, lighting, ownership of both images, and visual authenticity before publishing.
The lightweight general-object model is self-hosted and cached by the browser. Its first run downloads roughly 4.6 MB; later runs can reuse the local cache.
Included capabilities
- AI foreground segmentation
- Second-image background replacement
- Cover or contain placement
- Full-resolution PNG output
Useful for
- Place a portrait in a new setting
- Create campaign variations
- Build product composites
- Prepare presentation artwork
Questions
About this tool
Does Lucaden upload my image?
No. The browser downloads Lucaden's self-hosted U2-Net model, then runs inference against the image locally with ONNX Runtime Web.
What should I verify?
This is segmentation and compositing, not generative relighting. Check subject edges, perspective, lighting, ownership of both images, and visual authenticity before publishing.
Open-source foundations
Built transparently
Lucaden documents its standards sources, architectural references, and permissive runtime dependencies while keeping this workspace consistent with the Lucaden interface.