1 Open Source Alternatives to Glasswire

A list of 1 carefully selected open-source alternatives to Glasswire.

Created by

Adrian

Mar 9, 2025Updated•2 min read

The open-source alternatives are ranked based on our custom ranking system and score. This system takes into account various factors to determine the best alternatives.

If you’re looking for alternative features or workflows, here is a prepared detailed list of Glasswire open-source alternatives — each with its own distinctive strengths and key features.

Portmaster

9,794

329

Portmaster is a free and open-source network monitoring and firewall tool that gives you full control over your computer’s connections. Designed to block mass surveillance and unwanted trackers, it empowers users with customizable rules for both system-wide and per-application settings.

Key Features

Monitors all network activity and exposes every connection
System-wide auto-blocking of trackers, ads, and malware hosts
Secures DNS queries using DNS-over-TLS
Customizable global and per-application settings
Open source transparency and community-driven development

Portmaster monitors every network connection your device makes, exposing both legitimate and potentially harmful communications. It automatically blocks trackers, ads, and malware hosts using trusted filter lists, while securing your DNS queries by routing them through DNS-over-TLS providers. With options to create your own rules and configure global or per-app settings, Portmaster offers robust, user-controlled privacy protection for your computer, ensuring a safer Internet experience.

Learn more about Portmaster

Price comparison of Glasswire open-source alternatives

Tool	Tier 1	Tier 2	Tier 3	Details
Portmaster	- Portmaster Free	- Portmaster Plus	- Portmaster Pro	Learn more

* Pricing shown is based on publicly available information and may not reflect current rates. Visit each tool's website for detailed pricing information and additional tiers.

About Glasswire

GlassWire is a renowned brand that offers a comprehensive network security tool designed to keep your digital life safe. With a rich history and a team fueled by a passion for cybersecurity, GlassWire was born to provide users with an attractive, easy-to-use network monitor that brings attention to suspicious internet activities. It all started when GlassWire's dedicated team, based in Austin, Texas, created the tool they had always wanted. After gaining recognition on YCombinator's Hacker News and receiving glowing reviews from prestigious publications like PCWorld and Fast Company, GlassWire became a household name. From notifying you when a new device joins your network to helping you monitor app data usage on Android, GlassWire empowers you to control and protect your digital environment. Whether you're a seasoned GlassWire user or new to the brand, explore their feature-packed app and join the community of security-conscious individuals. Trust GlassWire to continuously enhance their app's functionality and ensure your online safety.

Similar Alternatives

Comodo Firewall

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This comparison data was compiled with AI assistance.

Glasswire

GlassWire is a modern personal firewall and network monitor with over 43 million downloads. Download GlassWire free!

Founded

2014

Employees

Location

Austin, United States

Visit Website

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