VUvunderba·Oct 14, 2026
Lulu is also very good as well!
https://github.com/objective-see/lulu
In Show HN: Pulse Local, a Mac budgeting app whose AI models run on your machineobjective-see
LuLu
Objective-C2018–2026
objective-see / LuLu
LuLu
LuLu is the free open-source macOS firewall
24Distinct people
24Mentions
0Explicit recommenders
13.6KGitHub stars
What to know before exploring
What it is
LuLu is the free open-source macOS firewall
GitHub
Where it is used
No documented product use was verified in the last source check.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year24 dated mentions
Observed mentions: 2018-01-19 20:14:59 UTC to 2026-10-14 04:52:23 UTC.
* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 4 | 0 | 4 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 6 | 1 | 5 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 3 | 0 | 3 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 3 | 0 | 3 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2026 (partial) | 2026-01-01 00:00:00 UTC | 2027-01-01 00:00:00 UTC | 4 | 0 | 4 |
What Hacker News says
24 sourcesfor folks on the mac, Lulu has been a great option too. https://github.com/objective-see/LuLu
In Little Snitch comes to Linux, but the core logic is closed sourceLittle Snitch is commercial. If you want largely similar features (focused on egress), check out LuLu: https://github.com/objective-see/LuLu
In AirSnitch: Demystifying and breaking client isolation in Wi-Fi networks [pdf]> LittleSnitch is great for MacOS; it is easily configured to alert you every time your machine makes ip/domain connections, which can then be accepted, denied, or rules made
For an open-source alternative, consider checking out - Lulu [0]. It's not as feature rich nor has impressive UI like the former but gets the main work done.
[0] https://github.com/objective-see/LuLu
In Notepad++ hijacked by state-sponsored actorsAs can the (FOSS) LuLu: https://github.com/objective-see/LuLu
In My Mac contacted 63 different Apple owned domains in an hour, while not is useIt's mostly what I use daily or a lot (except one these are not recurring; I will try to make these recurring once I am financially there again):
- https://objective-see.org/support.html (For https://github.com/objective-see/LuLu et al)
- https://www.thunderbird.net/donate (I hope none of it goes to Mozilla or Firefox. I also hope https://thundermail.com brings something than I can instead pay for, if I can or will decide to afford, instead of intermittent donations)
- https://www.borgbackup.org/support/fund.html (I would want to support https://restic.net as well as I use it so much but they never setup a way - it has been discussed :/)
- https://syncthing.net/donations
- https://github.com/Homebrew/brew#donations
- https://cryptomator.org/donate/
- https://www.patreon.com/db4s
- https://github.com/sponsors/qarmin for https://github.com/
Read the rest
qarmin/czkawka
- https://github.com/sponsors/garethgeorge for https://github.com/garethgeorge/backrest
- https://keepass.info/donate.html and https://keepassium.com/donate (Mostly the latter) (I had actually moved to StrongBox which did a U-turn on FOSS and then sold to another company. At that point I came back to KeePassium. The KeepPassium author actually took a stand a went FOSS as a principle. I think this is worth noting.)
..and few more.
…
…
# The ones I support by paying for one of its services bust mostly because its FOSS app:
- https://vorta.borgbase.com
- http://ente.io (But sadly not for long; because I really can't stand a non-native "photos" app. I just can't! Otherwise it's a great service!)
How’s it compare to Objective See’s LuLu OSS https://github.com/objective-see/LuLu ?
In Little Snitch: Network Monitor and Application Firewall for macOSThere's Lulu based on Apple's Network Extension framework but there are quite a few issues with the framework itself (it will briefly initiate a connection even though there's a deny rule for that address etc).
https://github.com/objective-see/LuLu
In OpenSnitch is a GNU/Linux interactive application firewallIf your into the tiling window manager experience, I would highly recommend looking into yabai + skhd + Sketchybar
- https://github.com/koekeishiya/yabai
- https://github.com/koekeishiya/skhd
- https://github.com/FelixKratz/SketchyBar
Some honorable mentions:
Hammerspoon - Unlock insane levels of configuration/automation (https://github.com/Hammerspoon/hammerspoon)
Raycast - Spotlight search replacement (https://www.raycast.com/)
LuLu Firewall - An amazing FOSS firewall (https://github.com/objective-see/LuLu)
In Ask HN: What macOS apps/programs do you use daily and recommend?You could install WPD (https://wpd.app/), use Simplewall (https://github.com/henrypp/simplewall) and a pihole on the network to block a lot, but it's still sad that we need to do this.
Apple alternatives include LuLu (https://github.com/objective-see/LuLu)
On Linux you can use Opensnitch (https://github.com/evilsocket/opensnitch)
In Windows users report appearance of unwanted HP appThis particular line in the developer's response[1] leads me to believe they don't - or at least don't properly - validate third party dependency changes, which is even more worrying if I'm honest:
> I will look into why Sentry.io is being contacted so often! This is strange as unless they changed their SDK/framework, is only supposed to happen on a crash report.
1: https://github.com/objective-see/LuLu/issues/488#issuecommen...
In macOS Free and Open-Source Security Tools by Objective-SeeLulu setup for Sentry seems to be for crash dumps being sent:
https://github.com/objective-see/LuLu/blob/dfe48c2a0f7a86361...
It does seem like a good idea that this could be disabled but now it's hard coded.
Issue on the topic: https://github.com/objective-see/LuLu/issues/488
In macOS Free and Open-Source Security Tools by Objective-SeeOpen source for good measure: https://github.com/objective-see/LuLu
In Portmaster – Open-source network monitor and firewallIt's worth mentioning that an excellent FOSS alternative is LuLu -- https://objective-see.com/products/lulu.html or https://github.com/objective-see/LuLu [last commit a week ago!]
In Wacom drawing tablets track the name of every application that you openLulu is the free and open source macOS firewall (like Little Snitch)
46 points · Open discussionShowing the 15 most recent of 24 sources. Enable JavaScript to search and browse every indexed mention.