Alternatives to TinyWall
A free, lightweight firewall controller for Windows that works without pop-up prompts. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
TinyWall
A free, lightweight firewall controller for Windows that works without pop-up prompts.
Replacements
Listings that take over the same core job as TinyWall.
simplewall
Puts a plain list of programs in front of the Windows Filtering Platform, so you decide what is allowed online.
simplewall is open source under GPL-3.0, uses a plain allow and block list over the Windows Filtering Platform, and includes a block list aimed at Windows telemetry.
Windows Firewall Control
A tray tool that extends Windows Firewall with outbound connection prompts and quick filtering modes.
Windows Firewall Control also uses the built-in firewall without a driver, but prompts when unknown programs try to connect out and offers one-click filtering mode switching.
Fort Firewall
Open-source per-application firewall for Windows built on its own filtering driver.
Fort Firewall is open source with per-application, wildcard and parent-process rules plus bandwidth graphs, but installs its own standalone filtering driver unlike TinyWall.
Portmaster
Shows every connection each application makes and lets you block any of them, with sensible defaults already set.
Portmaster is open source and runs on Windows and Linux, showing every connection per app, but installs a kernel driver and charges for some features.
GlassWire
Network monitor and firewall with a visual traffic history.
GlassWire adds a visual network traffic history and connection alerts on Windows and Android, but it is closed source and several features need a paid licence.
Similar software
Related functionality, not a direct replacement.
WPD
Windows privacy dashboard for telemetry, services and firewall rules.
O&O ShutUp10++
Portable Windows tool that toggles telemetry and data collection settings.
Hardentools
A Windows utility that reduces attack surface by disabling risky features commonly abused by malware.
OpenSnitch
An interactive application firewall for Linux that asks before letting any program make an outbound connection.
privacy.sexy
Generates privacy and hardening scripts for Windows, macOS and Linux.