Koutuxia: Background Remover

Restore missed subject areas, then create 1:1, 4:5, and 9:16 share-ready images in one tap. Processing stays entirely on device.

Koutuxia is an on-device background remover and product-photo editor for iPhone and iPad. Choose a photo, separate its subjects, then adjust the background, canvas, composition, edges, and shadow. No account or upload is required, and it works in Airplane Mode.

Remove backgrounds · Choose from Photos, import from Files, or paste from the clipboard · Send an image straight from the Photos or Files share sheet · Detect people, pets, products, and everyday objects · Keep one, several, or all detected subjects · Export a transparent background for further design work

Edge cleanup · Smart mode removes colour fringes and keeps soft hair detail · Full-resolution export aligns the mask with real edges in the original photo · Hair & Fur preserves the mask exactly as detected · Product Edge applies stronger cleanup to common background fringes · Inspect edges full screen with pinch-to-zoom

Fix background · When detection misses the subject or leaves background behind, tap the area to clear it · Tap two separated same-colour areas to clear that colour everywhere · Brush anything back later with the refine editor

Refine precisely · A live magnifier follows the brush · A coloured mask overlay helps with erasing and restoring · Pinch to zoom and drag the canvas · Strokes are final; restore automatic edges at any time · Undo, redo, or reset changes

Product images · Apply a white background, square canvas, composition, edge treatment, and shadow in one tap · Original size or 800×800, 1000×1000, 1200×1200, and 1600×1600 squares · Adjust subject size, placement, background colour, and shadow

Batch processing · Select up to nine photos · Apply one background, size, format, placement, and shadow to the batch · Stop and resume any time, retry only failed items · Share every finished image at once

More tools · Stitch Screenshots reduces repeated fixed headers and footers · Film Negative restores colour or black-and-white negatives with manual colour controls

Save and share · Original-size export keeps the photo's full native pixels · PNG preserves transparency · JPG fills an effective background · Save to Photos or use the system share sheet

Privacy Koutuxia has no account, ads, cloud upload, or data collection. Apple frameworks process every image on your device.