I built StorageMap to help macOS users understand disk usage and explore files and folders visually. Its design focuses on handling large file collections with controlled memory use.
The challenge
Exploring large file collections without loading the entire directory tree into memory, while supporting navigation, search, and saved scans.
My responsibility
Built a scanner that writes file data to SQLite in batches and loads results on demand, rather than retaining the entire tree in memory.
Added search, an interactive treemap, saved scans, and folder navigation.
Provided file-access guidance and a recoverable Move to Trash workflow.
Engineering decisions
SwiftUI provides macOS integration, SQLite and FTS5 support storage and search, and Swift actors organize concurrent work alongside bounded caches.
SwiftSwiftUISwift actorsSQLiteFTS5FileManager
Application screens
About the project
Screens from StorageMap showing scan setup, progress, and the interactive treemap.
Interactive treemap · completed scanScan entry points and access guidanceLive scan progress · large file system
Screens from a private build; they do not represent a public release.
