I don't know about you, but my Downloads folder has always been a disaster zone. PDFs next to memes, installers tangled with family photos, zip files from six months ago still sitting there unopened. Every few weeks I'd open it, sigh, and spend ten minutes manually dragging things into folders. Then two days later it'd be chaos again.
So I built Mouzi — a tiny desktop app that watches your Downloads folder and automatically sorts every file by type into the right subfolder. All while living silently in your system tray.
🤔 The Problem
Let's be honest — we all download files constantly:
- That one PDF invoice you need for taxes
- A Zoom installer for tomorrow's meeting
- Screenshots from the last debugging session
- The .zip someone sent you on Slack three months ago
They all land in the same flat folder. Finding a specific file becomes a hunt. The Downloads folder becomes a digital black hole.
✨ The Solution
Mouzi sits in your system tray and monitors your Downloads folder for new files. When something appears, it moves it to the appropriate subfolder based on its extension:
| File Type | Extensions | Target Folder |
|---|---|---|
| Images | .jpg, .png, .gif, .webp | Downloads/Images/ |
| Documents | .pdf, .docx, .xlsx | Downloads/Documents/ |
| Archives | .zip, .rar, .7z | Downloads/Archives/ |
| Installers | .exe, .msi, .dmg | Downloads/Installers/ |
No popups, no notifications, no interruptions. It just works.
🛠️ Use Case: My Real-Life Workflow
Here's how Mouzi actually fits into my day:
- Client sends a contract as PDF → lands in Downloads
- Mouzi moves it to
Downloads/Documents/ - I download a logo asset as PNG → lands in
Downloads/Images/ - I grab a new tool as .exe → lands in
Downloads/Installers/
I don't think about it. I just know where my files are. When I need that contract, I know it's in Documents. When I need that logo, it's in Images. No manual sorting, no mental overhead.
🧠 Key Features
- 100% Local & Private — Your file names and contents never leave your machine. No cloud, no telemetry, no tracking. Period.
- Open Source (MIT) — The full code is on GitHub. You can audit every line, fork it, modify it, build it yourself.
- Silent System Tray Operation — Runs in the background, completely invisible until you need it.
- Undo Any Action — Every file move is logged in the History tab. Undo with one click if something goes wrong.
-
Custom Rules Engine — Coming soon: define your own sorting rules by extension, name pattern, size, or date. Dynamic placeholders like
{year}or{month}will let you build powerful, automated folder structures. - Multi-Folder Support — Watch more than just Downloads. Point Mouzi at any folder and it'll apply your rules there too.
⚙️ Tech Stack
| Layer | Technology |
|---|---|
| Desktop Framework | Tauri v2 |
| Backend | Rust |
| Frontend | React 19 + TypeScript |
| Build Tool | Vite |
| Styling | Tailwind CSS |
| System Tray | tauri-plugin-tray |
Why Tauri instead of Electron?
- Bundle size: ~5 MB vs 100+ MB
- Memory: Uses the system WebView, not a bundled Chromium
- Rust backend: Native performance for file system operations
- Security: Minimal attack surface, explicit permissions model
🔒 Privacy Philosophy
I built Mouzi because I couldn't find a file organizer that didn't want to upload my file names to some cloud or charge a subscription. Mouzi is built on three principles:
- Local-first — everything runs on your machine
- Open source — transparent and auditable
- Zero friction — no accounts, no paywalls, no features locked behind payments
📥 Try It
- 🌐 Website: https://mouzi.cc
- 🐙 GitHub: https://github.com/hsr88/mouzi
Mouzi is free forever. If it saves you time and you want to support ongoing development, you can buy me a coffee on Ko-fi.
🚧 What's Next
This is an early beta. I'm actively working on:
- Custom rules engine with pattern matching
- Scheduled folder cleanup for Downloads older than N days
- Dark mode
- Native Acrylic/Mica effects on Windows
- macOS and Linux builds
🙏 Feedback Welcome
I'd love honest feedback — bugs, feature ideas, code reviews, everything. I'm a self-taught dev and this is a project I genuinely use daily. If Mouzi could help you too, I'd be thrilled.
Drop a comment below, star or open an issue on GitHub, or reach out directly. Thanks for reading!
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