No. 10 of 33 ·Network Packet Analyzer Software

Zui

Windows · Mac · Linux

Freedom report

Three barsScore 6.5

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

Zui is ranked #10 of 33 in network packet analyzer software on Freedom251. It runs on Linux, macOS, Windows. There is a free plan.

Zui plans and pricing

All plans

Zui Free Free to download and use brimdata.io · 4 Oct 2026

Compared on network packet analyzer software

Free plan: Yes

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The record

Purpose: Zui is a desktop application for querying and debugging Zed lakes.
Data exploration: Zui is a graphical interface for exploring data in Zed lakes.
Ingest and query features: The product page lists drag-and-drop ingest, schema inference, named queries, and filters and pivots.
Preview and shape data: Zui lets users preview and shape data while loading it into a Zed lake.
Packet capture analysis: Bundled Brimcap generates Zeek and Suricata summary logs from packet captures, and Zui can extract packet flows.
Security integrations: Packet capture views can correlate Zeek events with Suricata alerts, and right-click options can query VirusTotal or whois.
Threat rules: By default, bundled Suricata applies Emerging Threats Open rules, which are updated when Zui launches while connected to the internet.
Local storage: Imported data is stored in a local Zed lake under the user's Zui data directory.
Remote lake support: Zui can connect to a remote Zed lake, whose service uses TCP port 9867 in the documented setup.
Security: The maker says Zui releases are signed with a code signing certificate to indicate the installer came from Brim Data and has not been tampered with since it was built.
Support: The installation guide directs users who need help to troubleshooting documentation and the public Slack community.
Platform requirements: The maker recommends Windows 10 or newer, macOS Ventura 13.7 or newer, Ubuntu 20.04 or newer, Debian 11 or newer, Fedora 31 or newer, or Rocky 9 or newer.
Notable limitation: The maker says Linux updates require manual uninstalling and reinstalling.
Maker status: Brim Data says it is currently developing SuperDB while continuing to publish legacy Zed and Zui releases and documentation.
Price from: Free

Where it ranks on Freedom251

Best Network Packet Analyzer Software in 2026#10 of 33
Best Network Protocol Analyzers in 2026#11 of 30

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Sources

brimdata.io/download/· checked 4 Oct 2026
zui.brimdata.io/docs· checked 4 Oct 2026
zui.brimdata.io· checked 4 Oct 2026
zui.brimdata.io/docs/features/Preview-Load· checked 4 Oct 2026
zui.brimdata.io/docs/features/Packet-Captures· checked 4 Oct 2026
zui.brimdata.io/docs/support/Filesystem-Paths· checked 4 Oct 2026
zui.brimdata.io/docs/support/Troubleshooting· checked 4 Oct 2026
zui.brimdata.io/docs/Installation· checked 4 Oct 2026
zui.brimdata.io/docs/support/Supported-Platforms· checked 4 Oct 2026
brimdata.io· checked 4 Oct 2026