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Free, open source macOS firewall. It aims to block unknown outgoing connections, unless explicitly approved by the user.

Open Source

LuLu Privacy Policy

Privacy Policy Summary

  • There is a date of the last update of the agreements
  • When the service wants to make a material change to its terms, users are notified at least 30 days in advance


About the Data

This data is kindly provided by Read full report at: #3069

LuLu Source Code




LuLu is the free macOS firewall





10 Sept 17

Last Updated

21 Jun 24

Latest version


Primary Language



23,196 KB







Language Usage

Language Usage

Star History

Star History

Recent Commits

  • Patrick Wardle (10 Jun 24)


  • Patrick Wardle (06 Mar 24)

    version bump to v2.6.3

  • Patrick Wardle (06 Mar 24)

    improved rule exports strings now escaped #588

  • Patrick Wardle (07 Feb 24)

    cmdline install/uninstall/upgrade for Homebrew support Homebrew support #581 Improved logic in rules cleanup

  • Patrick Wardle (02 Feb 24)

    Update RulesWindowController.m Improved support for ad hoc signed binaries in UI

  • Patrick Wardle (02 Feb 24)

    version bump: v2.6.2

  • Patrick Wardle (02 Feb 24)

    improved handing of Apple Apps that moved to Mac App Store #584

  • Patrick Wardle (02 Feb 24)

    uninstaller cleanup

  • Patrick Wardle (02 Feb 24)


  • Patrick Wardle (02 Feb 24)

    version bump in install script

  • Patrick Wardle (02 Feb 24)

    improved code signing comparisons

  • Patrick Wardle (02 Feb 24)

    improved handling of code signing changes #580

  • Patrick Wardle (31 Jan 24)

    improved rule import/export UX

  • Patrick Wardle (31 Jan 24)

    Update RulesMenuController.m

  • Patrick Wardle (31 Jan 24)

    new rules (sub)menu, improved rule imports

  • Patrick Wardle (30 Jan 24)

    improved installation, rule saving, and rule imports...

  • Patrick Wardle (30 Jan 24)

    improved rule matching and UI

  • Patrick Wardle (29 Jan 24)

    .dmg signing, rules cleanup, ui improvements, friends++ added rule cleanup added startup splash window added code signing to disk image script

  • Patrick Wardle (26 Jan 24)

    rules import/exports, xpc client validation via new APIs setConnectionCodeSigningRequirement used for XPC connections (macOS 13+) logic for rule export/import (work in progress)

  • Patrick Wardle (18 Jan 24)

    improved (manual) rule adding added better support for creating rules for bundles

  • Patrick Wardle (26 Sept 23)

    rule export/import (work in progress) #265, #334, #364, #439, #500

  • Patrick Wardle (22 Sept 23)

    Removed Error Reporting Error reporting made the build process more involved, introduced external dependencies, and was causing crashes on older versions of macOS introduced GDPR concerns. (#488, #531, #543, #546, #555).

  • Patrick Wardle (08 Aug 23)

    moved from recursive to iterative approach to handling related flows

  • Patrick Wardle (07 Aug 23)

    Improved handling of "related" flows

  • Patrick Wardle (23 May 23)

    uninstaller/error reporting++ updated icon for uninstaller improved disabling of error reporting

  • Patrick Wardle (19 May 23)

    UI updates (#524)

  • Patrick Wardle (19 May 23)

    v2.5.0 New icon (mahalo Zabriskije) #520 Improved manual rule creation Added preference to allow all DNS traffic Improved block list filtering (via macOS 11+ remoteHostname)

  • Patrick Wardle (05 Apr 23)

    added option to turn off crash/error reporting #531 #488

  • Patrick Wardle (04 Apr 23)


  • Patrick Wardle (04 Apr 23)

    Merge branch 'master' of

LuLu Website


301 Moved


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Security Checks

1 security checks failed (65 passed)

  • External Redirect Detected

Server Details

  • IP Address
  • Hostname
  • Location Mountain View, California, United States of America, NA
  • ISP Google LLC
  • ASN AS15169

Associated Countries

  • US

Saftey Score

Website marked as safe


Blacklist Check was found on 0 blacklists

  • ThreatLog
  • OpenPhish
  • PhishTank
  • Phishing.Database
  • PhishStats
  • URLhaus
  • RPiList Not Serious
  • AntiSocial Blacklist
  • PhishFeed
  • NABP Not Recommended Sites
  • Spam404
  • CRDF
  • Artists Against 419
  • CERT Polska
  • PetScams
  • Suspicious Hosting IP
  • Phishunt
  • CoinBlockerLists
  • MetaMask EthPhishing
  • EtherScamDB
  • EtherAddressLookup
  • ViriBack C2 Tracker
  • Bambenek Consulting
  • Badbitcoin
  • SecureReload Phishing List
  • Fake Website Buster
  • TweetFeed
  • CryptoScamDB
  • StopGunScams
  • ThreatFox
  • PhishFort

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About the Data: LuLu


You can access LuLu's data programmatically via our API. Simply make a GET request to:

The REST API is free, no-auth and CORS-enabled. To learn more, view the Swagger Docs or read the API Usage Guide.

About the Data

Beyond the user-submitted YAML you see above, we also augment each listing with additional data dynamically fetched from several sources. To learn more about where the rest of data included in this page comes from, and how it is computed, see the About the Data section of our About page.

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