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OpenBSD

Hacker Approved

Ranked 5 of 87 operating systems by recommenders

A stable, security-focused Unix with simple configuration, excellent documentation and painless upgrades, though critics note limited hardware support, slower performance, and a minimalism that inflates its security reputation.

A stable, security-focused Unix with simple configuration, excellent documentation and painless upgrades, though critics note limited hardware support, slower performance, and a minimalism that inflates its security reputation.

315 people gave an opinion

recommend it
248
criticize it
67
approval share
79%
Each figure is 5 people. RecommendsCriticizes

Recommended in 13 of 13 months

  1. November 2025: recommended
  2. December 2025: recommended
  3. January 2026: recommended
  4. February 2026: recommended
  5. March 2026: recommended
  6. April 2026: recommended
  7. May 2026: recommended
  8. June 2026: recommended
  9. July 2026: recommended
  10. August 2026: recommended
  11. September 2026: recommended
  12. October 2026: recommended
  13. November 2026: recommended (month in progress)

Owned for 20 years

Median of the 28 owners who said how long they have had it.

Each square is one year.

Why it carries the badge

  • 248 people recommend itNeeds 10 or more, met.
  • 3.7 recommenders for every criticNeeds 2 to 1 or better, met.
  • Recommended in 13 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Simple, consistent configuration

    “I find the configuration of OpenBSD for this a lot more simple and everything that's needed, even for IPv6, is in the base install.”

    Comment from 4 Apr 2026 in “What changes when you turn a Linux box into a router”

    “Being able to understand the system, or at least being able to take a quick look when something doesn't work is very refreshing.”

    Comment from 19 May 2026 in “OpenBSD 7.9 Released”

    “simple easy to use system that I can configure to meet third party compliance requirements without jumping through hoops”

    Comment from 19 May 2026 in “OpenBSD 7.9 Released”
  • Security focus and mitigations

    “the reduced attack surface area of OpenBSD hardware support is a kick in the pants for average users, but desirable for hardened system design”

    Comment from 21 Jan 2026 in “FreeBSD”

    “They've done a lot of security research and pioneered a lot of open source work around OS-level stack smashing technologies”

    Comment from 12 Jul 2026 in “Theo de Raadt: "You've been smoking something mind altering" (2007)”

    “according to OpenBSD we outsiders have no luck in getting a cryptographically secure operating system except for OpenBSD”

    Comment from 19 May 2026 in “OpenBSD 7.9 Released”
  • Stable with painless upgrades

    “I've had my share of sudden power cuts hit OpenBSD during the 20+ years I've been using it, and I have yet to ever see its file system actually go corrupt.”

    Comment from 8 Jul 2026 in “OpenBSD has a use-after-free allowing local privilege escalation to root”

    “The documentation is fantastic, installation is easy; sysupgrade has been a big improvement, though I wish they'd slow the release cycle a little”

    Comment from 19 May 2026 in “OpenBSD 7.9 Released”

    “The BSD are very stable. You adjust some configuration, and then updates without having to change your tools or your config with every release.”

    Comment from 9 Apr 2026 in “FreeBSD Laptop Compatibility: Top Laptops to Use with FreeBSD”
  • Excellent, clear documentation

    “The documentation is fantastic, installation is easy; sysupgrade has been a big improvement, though I wish they'd slow the release cycle a little”

    Comment from 19 May 2026 in “OpenBSD 7.9 Released”

    “OpenBSD has an additional leg up in that incompatible changes between releases are concisely, clearly, and consistently documented”

    Comment from 24 Nov 2025 in “Moving from OpenBSD to FreeBSD for firewalls”

    “simpler and more consistent configuration, less churn, better documentation, focus on security and secure-by-default”

    Comment from 16 Nov 2025 in “Why use OpenBSD?”

What people warn about

Each mark is one comment

  • Security reputation rests on minimalism

    “The default install of OpenBSD doesn't do anything, so the fact that it hasn't had a remote hole in forever isn't saying much.”

    Comment from 16 Oct 2026 in “Big Fish: Exploiting a 37-Year-Old Kernel Bug in OpenBSD”

    “Most of their reputation comes from a time when linux distros and windows had every service enabled and exposed by default”

    Comment from 8 Jul 2026 in “OpenBSD has a use-after-free allowing local privilege escalation to root”

    “If your operating system only does 20% of what another operating system can do, it's easier for you to have 80% less bugs.”

    Comment from 8 Jul 2026 in “OpenBSD has a use-after-free allowing local privilege escalation to root”
  • Limited hardware and software support

    “the reduced attack surface area of OpenBSD hardware support is a kick in the pants for average users, but desirable for hardened system design”

    Comment from 21 Jan 2026 in “FreeBSD”

    “they have a convulated install process, dubious hardware and software compatibility that is better solved in the Linux world today”

    Comment from 13 Jul 2026 in “GhostLock, a stack-UAF that has existed in ALL Linux distributions for 15 years”

    “Recent OpenBSD versions have had to reduce the range of binary packages on i386 because of the difficulty of compiling them”

    Comment from 3 Feb 2026 in “Floppinux – An Embedded Linux on a Single Floppy, 2025 Edition”
  • Slower performance than alternatives

    “open-bsd has so many mitigation in place that your computer will probably run 50% slower than a traditional OS”

    Comment from 3 Jan 2026 in “Linux kernel security work”

    “OpenBSD's filesystem operations are slow not because of UFS2, but because they simply haven't been optimized”

    Comment from 16 Dec 2025 in “High Performance SSH/SCP”

    “OpenBSD is going through a slow fine grained locking transformation that FreeBSD started over 20 years ago.”

    Comment from 25 Nov 2025 in “Moving from OpenBSD to FreeBSD for firewalls”
  • Demanding for average users

    “the reduced attack surface area of OpenBSD hardware support is a kick in the pants for average users, but desirable for hardened system design”

    Comment from 21 Jan 2026 in “FreeBSD”

    “It's only practical for hobbyists. I used OpenBSD as a daily driver between 2001-2005. I fought, I suffered, I conquered”

    Comment from 16 Nov 2025 in “Why use OpenBSD?”

    “I would not necessarily recommend this to anyone, you give up a lot, but obsd is my ultimate comfort system”

    Comment from 1 Aug 2026 in “NetBSD 11.0 Released”

Other operating systems people recommend

The four most recommended other operating systems, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

OpenBSD compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Windows1,2873,58226%1310 yrs192 owners—
macOS1,0411,92835%1211 yrs183 owners—
Linux74527773%1219 yrs116 ownersApproved
FreeBSD3359478%1220 yrs69 ownersApproved
OpenBSDThis page2486779%1320 yrs28 ownersApproved
See all 87 operating systems, ranked

What people said

40 of the 551 comments that mention it, newest first. Each links to the original comment.

“pledge(2) and unveil(2), which is in firefox, makes me feel even more secure while away from my home router.”

RecommendsComment from 20 Oct 2026 in “OpenBSD 8.0”

“the thing that has allowed openbsd to adopt new things so slowly is a rock-solid set of core competencies”

MixedComment from 20 Oct 2026 in “Wine ported to OpenBSD”

“The upgrade mechanism from 7.9 to 8.0 is still gloriously simple, and exactly the same as it has been for many years”

RecommendsComment from 20 Oct 2026 in “OpenBSD 8.0”

“The default install of OpenBSD doesn't do anything, so the fact that it hasn't had a remote hole in forever isn't saying much.”

MixedComment from 16 Oct 2026 in “Big Fish: Exploiting a 37-Year-Old Kernel Bug in OpenBSD”

“I would not necessarily recommend this to anyone, you give up a lot, but obsd is my ultimate comfort system”

MixedComment from 1 Aug 2026 in “NetBSD 11.0 Released”

“I'm using OpenBSD as a daily desktop. The main motivation is that it's a complete system instead of several projects.”

RecommendsComment from 1 Aug 2026 in “NetBSD 11.0 Released”

“they have a convulated install process, dubious hardware and software compatibility that is better solved in the Linux world today”

MixedComment from 13 Jul 2026 in “GhostLock, a stack-UAF that has existed in ALL Linux distributions for 15 years”

“They've done a lot of security research and pioneered a lot of open source work around OS-level stack smashing technologies”

RecommendsComment from 12 Jul 2026 in “Theo de Raadt: "You've been smoking something mind altering" (2007)”

“I've had my share of sudden power cuts hit OpenBSD during the 20+ years I've been using it, and I have yet to ever see its file system actually go corrupt.”

RecommendsComment from 8 Jul 2026 in “OpenBSD has a use-after-free allowing local privilege escalation to root”

“If they can provide only 20% of the functionality and only 1% of the bugs, that's a compelling trade-off for many use-cases!”

RecommendsComment from 8 Jul 2026 in “OpenBSD has a use-after-free allowing local privilege escalation to root”

“It runs most services as their own separate users, with pledge+unveil to limit what they can access even more.”

RecommendsComment from 8 Jul 2026 in “OpenBSD has a use-after-free allowing local privilege escalation to root”

“If your operating system only does 20% of what another operating system can do, it's easier for you to have 80% less bugs.”

MixedComment from 8 Jul 2026 in “OpenBSD has a use-after-free allowing local privilege escalation to root”

“Most of their reputation comes from a time when linux distros and windows had every service enabled and exposed by default”

MixedComment from 8 Jul 2026 in “OpenBSD has a use-after-free allowing local privilege escalation to root”

“pledge and unveil are nice, but exactly how effective do you expect them to be against an ssh/sftp server?”

MixedComment from 19 May 2026 in “OpenBSD 7.9 Released”

“You just need to put the firmware needed on a usb stick, mount it and run one command, fw_update -p ./ It wasn't hard.”

RecommendsComment from 19 May 2026 in “OpenBSD 7.9 Released”

“simple easy to use system that I can configure to meet third party compliance requirements without jumping through hoops”

RecommendsComment from 19 May 2026 in “OpenBSD 7.9 Released”

“I use it on my ~10 year old desktop as my everyday OS. Performance may be measurably worse on benchmarks, but I never notice it doing regular stuff as a user. It's fine.”

RecommendsComment from 19 May 2026 in “OpenBSD 7.9 Released”

“The documentation is fantastic, installation is easy; sysupgrade has been a big improvement, though I wish they'd slow the release cycle a little”

MixedComment from 19 May 2026 in “OpenBSD 7.9 Released”

“isn't as strong at limiting an attacker that successfully exploited a bug they missed or weren't responsible for”

MixedComment from 19 May 2026 in “OpenBSD 7.9 Released”

“it's particularly good for troubleshooting older hardware too since most bog standard x86 parts are well supported”

RecommendsComment from 19 May 2026 in “OpenBSD 7.9 Released”

“so many things are maintained there (OpenSSH, LibreSSL, PF, Tmux, sudo kinda) that it'll always exist to a degree”

RecommendsComment from 19 May 2026 in “OpenBSD 7.9 Released”

“Being able to understand the system, or at least being able to take a quick look when something doesn't work is very refreshing.”

RecommendsComment from 19 May 2026 in “OpenBSD 7.9 Released”

“Configuring OpenBSD was really quite simple and rewarding. No insane linux network stack / netplan / cloud-init”

RecommendsComment from 19 May 2026 in “OpenBSD 7.9 Released”

“Back then, a full GUI environment with terminal, web browser, editor: 28MiB of memory for the whole operating system and user environment!”

RecommendsComment from 19 May 2026 in “OpenBSD 7.9 Released”

“I have used OpenBSD as a desktop for 7 years. Though my usage and the machine were minimal. But I thoroughly liked it.”

RecommendsComment from 19 May 2026 in “OpenBSD 7.9 Released”

“according to OpenBSD we outsiders have no luck in getting a cryptographically secure operating system except for OpenBSD”

RecommendsComment from 19 May 2026 in “OpenBSD 7.9 Released”

“Or, just install OpenBSD or (or FreeBSD if you're willing to sacrifice a chunk of security for nvidia, jails, and bhyve)”

RecommendsComment from 8 May 2026 in “Maybe you shouldn't install new software for a bit”

“The BSD are very stable. You adjust some configuration, and then updates without having to change your tools or your config with every release.”

RecommendsComment from 9 Apr 2026 in “FreeBSD Laptop Compatibility: Top Laptops to Use with FreeBSD”

“I find the configuration of OpenBSD for this a lot more simple and everything that's needed, even for IPv6, is in the base install.”

RecommendsComment from 4 Apr 2026 in “What changes when you turn a Linux box into a router”

“Recent OpenBSD versions have had to reduce the range of binary packages on i386 because of the difficulty of compiling them”

MixedComment from 3 Feb 2026 in “Floppinux – An Embedded Linux on a Single Floppy, 2025 Edition”

“I didn't want to be told that I'm using my computer wrong by someone getting paid to make Linux less usable.”

RecommendsComment from 27 Jan 2026 in “Windows 11's Patch Tuesday nightmare gets worse”

“the reduced attack surface area of OpenBSD hardware support is a kick in the pants for average users, but desirable for hardened system design”

MixedComment from 21 Jan 2026 in “FreeBSD”

“It started in 7.3 with the frame buffer changes and the only workaround was to disable the kernel driver.”

MixedComment from 16 Jan 2026 in “OpenBSD-current now runs as guest under Apple Hypervisor”

“The problem with their approach is they rely on it 100%, and have not enough in place to protect against bugs they miss.”

MixedComment from 3 Jan 2026 in “Linux kernel security work”

“open-bsd has so many mitigation in place that your computer will probably run 50% slower than a traditional OS”

MixedComment from 3 Jan 2026 in “Linux kernel security work”

“OpenBSD's filesystem operations are slow not because of UFS2, but because they simply haven't been optimized”

CriticizesComment from 16 Dec 2025 in “High Performance SSH/SCP”

“OpenBSD is going through a slow fine grained locking transformation that FreeBSD started over 20 years ago.”

CriticizesComment from 25 Nov 2025 in “Moving from OpenBSD to FreeBSD for firewalls”

“OpenBSD has an additional leg up in that incompatible changes between releases are concisely, clearly, and consistently documented”

RecommendsComment from 24 Nov 2025 in “Moving from OpenBSD to FreeBSD for firewalls”

“It's only practical for hobbyists. I used OpenBSD as a daily driver between 2001-2005. I fought, I suffered, I conquered”

MixedComment from 16 Nov 2025 in “Why use OpenBSD?”

“simpler and more consistent configuration, less churn, better documentation, focus on security and secure-by-default”

RecommendsComment from 16 Nov 2025 in “Why use OpenBSD?”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.