Chart standing · US
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SpriteAtlas Pack is a paid, local-first production utility for game artists, UI designers, indie developers, and technical art teams. Create a saved atlas project and import real PNG or JPEG artwork through Apple's document picker. The app preserves source dimensions, calculates transparent trim bounds, copies assets into private local storage, and lets you edit logical names, group tags, and pack inclusion. Build a deterministic shelf-packed atlas with a live placement map. Choose a 512, 1024, or 2048 pixel limit, adjust padding, require a power-of-two canvas, and record edge-extrusion intent. The audit checks frame overlap, canvas overflow, duplicate logical names, suspicious untrimmed assets, and names that need normalization. Export a transparent atlas PNG, sorted structured JSON frame metadata with source and trim offsets, and a CSV packing report. Duplicate the complete project before changing a delivery revision. No login is required. The app has no subscription, in-app purchases, ads, analytics, tracking, cloud sync, AI processing, or developer-server upload.
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