LuLu

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Every plan, in full

On the record

Alerts

Alerts show the process and destination, and can display code-signing details and process origins.objective-see.org · read 11 Oct 2026

Compatibility

The product page lists macOS 10.15 or later as the platform requirement.objective-see.org · read 11 Oct 2026

Lists

Allow and block lists can use local files or remote URLs, and block-list matches take priority when both lists are configured.objective-see.org · read 11 Oct 2026

Maker

Objective-See describes itself as a nonprofit foundation focused on macOS security and free, open-source tools.objective-see.org · read 11 Oct 2026

Network monitor

LuLu packages Objective-See's Netiquette network monitor, which can be opened from the status-bar menu.objective-see.org · read 11 Oct 2026

Network scope

LuLu monitors outgoing traffic, and some traffic may not pass through macOS Network Extensions and therefore may not be visible or blockable by LuLu.objective-see.org · read 11 Oct 2026

Privacy

The maker says LuLu's automatic version check sends no user or product information, and the check can be disabled in settings.objective-see.org · read 11 Oct 2026

Profiles

Profiles keep separate rules and settings, and only the active profile is used to make connection decisions.objective-see.org · read 11 Oct 2026

Purpose

LuLu is a free, open-source firewall that alerts about and blocks unknown outgoing network connections.objective-see.org · read 11 Oct 2026

Rules

Rules can allow or block connections for a process or a specific remote endpoint, with permanent or temporary durations.objective-see.org · read 11 Oct 2026

Support

The maker directs users to create bug reports through LuLu's GitHub repository.objective-see.org · read 11 Oct 2026

VirusTotal

LuLu opens a VirusTotal lookup only when the user clicks the alert button, using a URL that includes the item's hash.objective-see.org · read 11 Oct 2026

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