DiskAnalyzer

Beautiful • Fast • Native macOS disk usage analyzer
Interactive sunburst visualization • Instant drill-down • Professional insights

DiskAnalyzer is a fast, beautiful, and truly native-feeling macOS app to visualize where your disk space has gone.

Inspired by the best (DaisyDisk, GrandPerspective, Disk Inventory X) but built with modern tools for speed and clarity: Tauri + Rust for the engine and Svelte + D3 for buttery-smooth interactive sunburst charts.

✨ Highlights

• Stunning Sunburst Visualization — Hierarchical pie/rings that feel natural to explore. Click any segment to dive deeper.
• Blazing Fast Scanner — Powered by Rust + parallel directory walking. Handles millions of files without freezing.
• Start from anywhere — Root /, your Data volume, ~/Users, external drives, or any folder.
• Live Progress — See exactly what’s being scanned in real time.
• Smart Pruning — Automatically groups tiny files so the view stays clean and useful.
• Native macOS Experience — Proper permissions flow, Reveal in Finder, clean dark UI that matches the system.
• Releases with one-click DMG — Every build on main automatically creates a GitHub Release with a ready-to-install .dmg.

📥 Download & Install (Recommended)

1. Go to Releases
2. Download the latest DiskAnalyzer-*.dmg (Apple Silicon builds are primary)
3. Open the DMG → drag DiskAnalyzer to Applications
4. First launch: Right-click the app → Open (Gatekeeper)
5. For complete scans from root: grant Full Disk Access when asked
   (System Settings → Privacy & Security → Full Disk Access)

The app will guide you with clear Vietnamese + English instructions.

🖼️ Screenshots

Main view with live sunburst + volumes

(Imagine a beautiful concentric ring chart here with large colorful segments for Users, Applications, Library, System, etc.)

Drill-down experience

Clicking a segment smoothly focuses the visualization on that subtree while the sidebar updates with the largest children.

Progress during a full root scan

Real-time feedback so you never wonder if it’s stuck.

🚀 Features

• Multiple volume detection (Data volume, external disks, etc.)
• Hierarchical sunburst with smooth interactions
• Sidebar with top consumers + detail pane
• Breadcrumb navigation + “go up” support
• Safe actions: Reveal in Finder (more coming: move to trash staging)
• Full Disk Access helper + graceful degradation
• Persistent preferences (coming soon)
• Very small app size thanks to Tauri

🛠️ Development

Prerequisites

• macOS (Apple Silicon recommended)
• Rust (via rustup)
• Node.js 20+ + pnpm

Getting started

git clone https://github.com/dongitran/diskanalyzer.git
cd diskanalyzer
pnpm install

# Run in development
pnpm tauri dev

# Build production .app + .dmg (Apple Silicon)
pnpm tauri build -- --target aarch64-apple-darwin

The resulting DMG will be in:

src-tauri/target/aarch64-apple-darwin/release/bundle/dmg/

Quality Commands

pnpm quality          # typecheck + cspell
pnpm check            # Svelte type checking
pnpm lint
cd src-tauri && cargo check
cd src-tauri && cargo clippy -- -D warnings

🧠 Technical Notes

• Scanner: jwalk (parallel) + sysinfo for volumes. Future: getattrlistbulk / POSIX fts for even higher performance on APFS.
• Size accuracy: Reports allocated size. APFS clones and hard links are challenging (same limitation as most tools, including paid ones).
• Memory: Tree is pruned for visualization. Full raw data is never kept for millions of tiny files.
• Permissions: Uses tauri-plugin-macos-permissions + proper entitlements. The app is intentionally not sandboxed so it can request Full Disk Access.

🤝 Contributing

Contributions are very welcome!

1. Fork + create a feature branch
2. Make sure pnpm quality and cargo clippy pass
3. Open a PR with clear description + before/after if UI

Please follow the spirit of the project: clarity and performance first.

📄 License

MIT © 2026

Made with care for people who actually want to understand their disk.

If you find DiskAnalyzer useful, consider starring the repo — it helps others discover it.

⭐ Star on GitHub