A Mac tool for indie game art: auto-frame sprites from one sheet, grid or freehand boxes, magic wand cleanup, then export locally. No account. No cloud. Art stays on your Mac.
Works best when sprites are clearly separated. Sticky or complex art: use Freehand or Wand. Direct purchase is on the homepage ($7.99 one-time). Mac App Store link will appear here after review.
Quick start
Open an atlas (drag & drop or File → Open). Sample atlases are in the app bundle.
Use the sidebar to switch Grid or Free (freehand) mode.
Export tiles (or atlas + JSON) to a folder you choose — then drop them into your game project.
Capabilities (as on the product site)
Auto Frame
In Free mode, click the background once to box many sprites at once — ideal for clear sheets on transparent or solid fills. PNG: click transparent; JPG/BMP: click the solid key color. Settings → Auto Frame → Min Size… (or double-click the Auto tool) skips tiny islands (default about ≤ 8×8).
Grid & Freehand
Grid: regular tilesets — set cell size, rows/columns, margins, and spacing. Edge modes: Crop (discard leftover edge pixels; full cells only) or Pad (keep cell size; extra rows/cols filled with transparency). Hover a cell to preview the tile.
Free (Freehand): draw rectangles when the layout is irregular; resize with handles; organize and rename in the Cells list. Right-click a box for Trim to content, Add to list, Copy Image, or Delete. Overlapping boxes: right-click → Select → #id.
Magic Wand
Select and clear backgrounds to transparency when Auto Frame needs a cleaner pass. Click opaque pixels; Shift+click to add. Right-click: Expand 1px / Contract 1px / Make transparent / Invert / Deselect. Double-click the Wand tool (or Settings → Wand → Tolerance…) to adjust sensitivity. Undo / Redo supported.
Export for your pipeline
Batch-export individual PNG / JPG / BMP tiles with names you control.
Optional Atlas + JSON export for common 2D pipelines (one sheet + frame table).
Settings → Export Format: PNG (keeps transparency), JPG / BMP (white background), or match source.
Eraser — hard square brush clears alpha (1–16 px); right-click or double-click the tool for size; undo available.
Trim to content — tighten Free / selected cells to non-transparent pixels.
View Sync — keep canvas selection synced with the Cells list (Settings → View Sync; on by default).
Pan / zoom — Move tool, mouse wheel, two-finger scroll, pinch; Space / middle-mouse pan on other tools.
Session — unsaved slicing can be restored on next launch (local only).
Settings & UI
Language
English, 简体中文, 日本語, 한국어.
Button Theme
Charcoal, Blush, Teal, Steel Blue.
Keyboard Shortcuts
Help → Keyboard Shortcuts… (open, undo/redo, mode tips, Esc behavior).
Who it’s for
Built for indie / small-team 2D game developers and pixel artists — not “social-media grids.” On clear transparent atlases, Auto Frame + export is often about a couple of minutes. Complex backgrounds: Freehand + Wand, iteratively, with undo.
Licensing
One-time purchase, $7.99 (not a subscription).
macOS desktop app; delivered as a notarized .dmg from the website, and submitted to the Mac App Store.
You are responsible for the copyright of images you open and export.