Working image—
Points6
OutlineClosed
Feather0 px
Trace and refine an image outline by hand, feather its edge, and export a transparent PNG or mask without AI segmentation or uploads.
Step by step
01Start with the source
Choose an image or try the sample. Start a new outline and click around the part of the picture to keep. The editor uses a polygon, so add more points where the boundary changes direction or needs finer detail.
02Edit and inspect
Close an outline with at least three points. Drag its handles, edit exact point coordinates, insert midpoints, or delete unnecessary points. Zoom into the image while refining the boundary and use a small feather radius when a softer edge is needed.
03Export and verify
Preview the cutout against the transparency checkerboard and download the transparent PNG. A mask PNG is available for other editors. Save the outline coordinates if you want to apply the same boundary to the same working image later.
Why this one
A deliberate manual boundary
The retained region is exactly the inside of the closed polygon. The tool does not identify hair, products, people, or backgrounds. Straight polygon segments make the boundary reproducible; detailed curves require additional carefully positioned points.
Transparency is baked into pixels
The output is a new PNG with alpha outside the retained region. It does not distribute the original image beneath an editable SVG clipping path. The optional mask contains opaque white inside the shape and transparency outside, softened by the same feather setting.
Refinement stays local
Undo and redo keep recent outline edits. A saved outline contains dimensions and coordinates but excludes the image. Reopening requires an image with the same working dimensions, which prevents accidentally applying pixel coordinates to a differently scaled source.
FAQ
The manual background cutout editor uses a hand-traced polygon and a local alpha mask. No segmentation model or processing API is used.
The manual background cutout editor supports a 0–20 pixel feather radius, applied to the alpha mask before PNG export.
The manual background cutout editor supports one closed outer polygon. Interior holes and multiple disconnected selections are not supported.
The manual cutout outline file contains point coordinates, closure state, and working dimensions. It does not include the source image.
Files and project content are processed on this device. No AI tokens or third-party processing API are used. Share links include settings only; source files and private project content are excluded. Downloaded projects are ordinary local files that you choose where to store and share.
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