Traffic shaping for macOS Big Sur

Throttle Apps Bandwidth

Monitor and throttle apps bandwidth on a per-app basis using a simple interface

Snail main window displays real-time apps bandwidth and total traffic
Use controls next to each app to tune apps bandwidth

Mobile data cap? Save data using Snail! Automatically enable bandwidth throttle when connected to your iPhone local hotspot and automatically disable it when connected to home wifi or ethernet network

Working from home? reduce your videocalls bandwidth usage to save data and to let more users share the same Internet connection.

This release of Snail has been tested on macOS 11.1 arm/intel.
Please report bugs to


Snail 1.0 Beta

This release of Snail Beta is free

Snail requires macOS 11.1 Big Sur
Snail is a Universal app, it runs natively on both Intel and Apple Silicon Macs

Please note: this is beta software, use at your own risk. Please read the included README file.
Please report bugs to, thank you.