
A free, open-source macOS app that automatically sorts your Downloads folder.

Product memo
Boo is a free, open-source macOS menu-bar app designed to automatically sort files in the Downloads folder. It learns file types and moves them to appropriate folders without user intervention, offering a 'set it and forget it' product for managing digital clutter.
For who
macOS users with messy Downloads folders
Solves what
Automatically sorts files in the Downloads folder based on learned file types.
- Menu bar app
- Automatic sorting
- Learns file types
In their own words
Boo
Lives in your menu bar, eats your Downloads mess, and sorts it. Native, free, open source.
Commercial cues
Model
free only
Free tier
Yes
Trial
No
Pricing Strategy
Completely free, open-source product positioned as a delightful utility for macOS users.
- • Free-only model leverages open-source for distribution
- • MIT license encourages community contribution and customization
- • Sponsorships offer a voluntary pricing stream
Operator context
Operating setup
Team
Indie / lean
LLM classification
Founded
Jul 2026
Platform
Desktop
Audience
Consumers
Social footprint
Builder Strategy
- Strategy Type
- Niche Specialist
- Stage
- Bootstrapped Lean
- Effort
- Solo Buildable
About Boo Expand
Boo is a free, open-source menu-bar application for macOS designed to tackle the common problem of a cluttered Downloads folder. It operates quietly in the background, observing files as they arrive and automatically sorting them into appropriate folders based on learned file types.
Unlike rule-based systems, Boo learns and remembers, requiring no manual setup or complex configurations. Its native SwiftUI implementation ensures it's lightweight and efficient.
Available under an MIT license, Boo encourages community involvement, allowing users to fork, customize, or sponsor its development.
