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Network visibility & firewall

See every connection. Understand every alert.

GlassWire turns your device's network activity into a live, readable picture — then explains what each connection is actually doing in plain English. Spot threats, block what you don't trust, and stay in control of your bandwidth, without needing to be a security expert.

Download free See what it does
Live
traffic graph
Plain-English
connection verdicts
Win + Mac
one experience
Network activity live

svchost.exe → Microsoft (Windows Update)

Expected. A trusted system process downloading updates. No action needed.

unknown.exe → 185.* (new outbound)

First time this app reached the internet. Review it, or block with one click.

What it does

Everything happening on your network, made obvious

GlassWire combines a network monitor, a firewall, and an alert system into one tool that an everyday person can actually read.

  • Live network visualization

    Watch traffic as it happens on a clean, readable graph. See which apps are talking, to whom, and how much — past and present.

  • One-click firewall

    Block any app's connection the moment you see it. No cryptic rules — just an on/off switch next to every app.

  • Threat & new-connection alerts

    Get a calm, clear heads-up when something new or unusual connects — a new app, an unknown host, a spike.

  • Bandwidth & data usage

    Find what is eating your data. Per-app, per-day usage so you can catch surprises before they hit your bill.

  • App reputation

    Cross-fleet reputation tells you whether an app talking on your machine is common and trusted — or rare and worth a look.

  • Private & on-device

    The analysis runs on your device. GlassWire is your window into your own network — not another company watching it.

New: the verdict layer

Security tools shout. GlassWire explains.

Most network tools throw raw connections and red badges at you and leave you to guess. GlassWire adds a verdict layer: for every connection it answers the only question that matters — "is this fine, or should I care?" — in one plain sentence.

  • Plain-English, not packet dumps

    Each alert reads like a sentence a person wrote, not a log line.

  • Calm, but visible

    Routine activity stays quiet in the background; the things worth your attention stand out.

  • You decide, fast

    Every verdict comes with the one action that makes sense: allow, block, or learn more.

Example verdict

"backup-helper.exe just connected to a storage server in Germany for the first time. It matches your cloud-backup app and is uploading — this looks expected."

Looks expected Block anyway Tell me more

How it works

Useful in three steps

  1. 1

    Install in a minute

    Download GlassWire and run it. It starts mapping your network activity immediately — nothing to configure.

  2. 2

    See & understand

    Watch the live graph fill in. New and unusual connections surface with a plain-English verdict so you know what they are.

  3. 3

    Stay in control

    Block anything you don’t trust with one click, set alerts that matter, and keep an eye on your data usage over time.

Platforms

One experience, every device

GlassWire is being rebuilt on a shared, portable core so the same clear experience runs across platforms — Windows today, macOS next.

Windows

Available now — the home GlassWire has always run.

Available

macOS

In active development on the new cross-platform core.

Coming soon

Take back the view of your own network

Free to start. See what's connecting, understand why, and block what you don't trust.

Download GlassWire Explore the features

Windows · macOS (soon) · no account required to start