C Openbsd

Open-source C projects categorized as Openbsd
Linux Freebsd C Unix Bsd

Top 23 C Openbsd Projects

  1. cosmopolitan

    build-once run-anywhere c library

    Project mention: Release Cosmopolitan v4.0.0 · jart/cosmopolitan | news.ycombinator.com | 2025-01-23
  2. InfluxDB

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  3. zapret

    DPI bypass multi platform

  4. src

    Read-only git conversion of OpenBSD's official CVS src repository. Pull requests not accepted - send diffs to the tech@ mailing list.

    Project mention: PostgreSQL on OpenBSD: Upgrade 16 to 17 with pg_upgrade | dev.to | 2025-04-27

    OpenBSD gives us good documentation as a series of the project. (For example, the man pages are cared and kept maintained.) It's applied to principal service packages as well as the OS. So is as to PostgreSQL.

  5. stress-ng

    This is the stress-ng upstream project git repository. stress-ng will stress test a computer system in various selectable ways. It was designed to exercise various physical subsystems of a computer as well as the various operating system kernel interfaces.

    Project mention: How to Reproduce Kubernetes Node-pressure Eviction Locally | dev.to | 2024-08-15

    Next, we need to perform a memory stress test on the node where the head pod is located. After some Googling, I found that stress-ng is commonly used for this purpose, so Ill use it as well. We need to ensure that the head pod has stress-ng available. The simplest way is to copy the statically compiled stress-ng binary directly into the head pod, so we don't have to worry about the head pod's base image or any missing dependencies. As for obtaining the statically compiled binary, you can compile it yourself, but I took a shortcut by copying it from a Docker image that includes the binary. Assuming the head pod is named raycluster-kuberay-head-ldg9f.

  6. arcan

    Arcan - [Display Server, Multimedia Framework, Game Engine] -> "Desktop Engine"

    Project mention: In praise of grobi for auto-configuring X11 monitors | news.ycombinator.com | 2025-05-10

    Yes, multi-protocol display servers like Arcan are the future.

    https://arcan-fe.com/

  7. LibreSSL

    LibreSSL Portable itself. This includes the build scaffold and compatibility layer that builds portable LibreSSL from the OpenBSD source code. Pull requests or patches sent to [email protected] are welcome.

  8. arp-scan

    The ARP Scanner

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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  10. solo5

    A sandboxed execution environment for unikernels

  11. rdrview

    Firefox Reader View as a command line tool

  12. puNES

    Qt-based Nintendo Entertaiment System emulator and NSF/NSF2/NSFe Music Player (Linux, FreeBSD, OpenBSD and Windows)

    Project mention: Plastic – A Modern NES Emulator That Works with EGUI and TUI | news.ycombinator.com | 2024-10-19

    puNES also deserves more attention. It is highly accurate and supports obscure mappers and Famicom Disk System games: https://github.com/punesemu/puNES

  13. exploits

    A handy collection of my public exploits, all in one place. (by 0xdea)

  14. mg

    Micro (GNU) Emacs-like text editor ❤️ public-domain

  15. oksh

    Portable OpenBSD ksh, based on the Public Domain Korn Shell (pdksh).

    Project mention: Pnut: A C to POSIX Shell Compiler you can Trust | news.ycombinator.com | 2024-07-23

    All of Android is still based on a pdksh-derivative known as mksh, which is an enormous install base.

    http://www.mirbsd.org/mksh.htm

    OpenBSD switched their default shell to their own pdksh-derivative known as oksh.

    https://github.com/ibara/oksh

    There was an effort to (re)start ksh93 development, but AT&T halted this effort. The bugfixes from the failed effort have moved back into Korn's last release.

    https://github.com/ksh93/ksh/tree/dev

  16. signify

    OpenBSD tool to sign and verify signatures on files. Portable version.

    Project mention: Show HN: Signify – FOSS tool to generate Email signatures (HTML and PNG) | news.ycombinator.com | 2025-01-04

    Not to be confused with https://github.com/aperezdc/signify which can be used for the other kind of signature. I don't think it is typically used for email, but it probably could be, and I intitially thought that was what this was about.

  17. InitWare

    The InitWare Suite of Middleware allows you to manage services and system resources as logical entities called units. Its main component is a service management ("init") system.

    Project mention: InitWare, a portable systemd fork running on BSDs and Linux | news.ycombinator.com | 2025-04-03

    Agree and so I went looking and here is the reason: https://github.com/InitWare/InitWare/commit/3ee721035525dbb1....

    They started with a specific version of systemd and have been mutating it since then, so the whole this is "tainted" with LGPL now.

  18. dhcp

    ISC DHCP is enterprise grade, open source solution for DHCP servers, relay agents, and clients, supports both IPv4 and IPv6, and is suitable for use in high-volume and high-reliability applications. (by isc-projects)

  19. OpenVi

    OpenVi: Portable OpenBSD vi for UNIX systems

  20. pl0c

    Self-hosting PL/0 to C compiler to teach basic compiler construction from a practical, hands-on perspective.

  21. loksh

    A Linux port of OpenBSD's ksh

  22. ts-warp

    Transparent proxy server and traffic wrapper

  23. minc

    MinC Is Not Cygwin

    Project mention: Moving Forth: a series on writing Forth kernels | news.ycombinator.com | 2025-05-15

    to enable do...loop support and such. After you enabled them, try ./sublec ./sublrec.dec < ./sublec.fth > new.dec, wait a lot, and then run ./subleq sublec.dec .

    In order to save lots of time, clone the muxleq repo https://github.com/howerj/muxleq , edit muxleq.fth as always, and then run ./muxleq ./muxlec.dec < muxlec.fth > new.dec, and ./muxlec ./new.dec to run the new DEC EForth image.

    Is not especially fast but it's a ready to run Forth and the Subleq machine can be compiled even under Windows XP and up with Min-C or any bundled C compiled on GNU/Linux BSD, from cproc to tcc, gcc or clang. If some of your code runs fast under Muxleq+EForth, it will fly under PForth and GForth.

    https://minc.commandlinerevolution.nl/english/home.html

  24. bbcp

    BlackBox Cross-Platform (Windows, GNU/Linux, OpenBSD, FreeBSD) (by bbcb)

  25. openbsd_hammer2

    HAMMER2 file system for OpenBSD

  26. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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C Openbsd related posts

  • PostgreSQL on OpenBSD: Upgrade 16 to 17 with pg_upgrade

    2 projects | dev.to | 27 Apr 2025
  • OpenBSD 7.6 を 7.7 へ アップグレード

    3 projects | dev.to | 27 Apr 2025
  • MinC Is Not Cygwin

    6 projects | news.ycombinator.com | 23 Apr 2025
  • Using multiple SSH keys on multiple Git repositories

    1 project | dev.to | 26 Mar 2025
  • Release Cosmopolitan v4.0.0 · jart/cosmopolitan

    1 project | news.ycombinator.com | 23 Jan 2025
  • Show HN: Signify – FOSS tool to generate Email signatures (HTML and PNG)

    2 projects | news.ycombinator.com | 4 Jan 2025
  • OpenBSD 7.5 を 7.6 へ アップグレード

    2 projects | dev.to | 3 Jan 2025
  • A note from our sponsor - SaaSHub
    www.saashub.com | 18 May 2025
    SaaSHub helps you find the best software and product alternatives Learn more →

Index

What are some of the best open-source Openbsd projects in C? This list will help you:

# Project Stars
1 cosmopolitan 19,348
2 zapret 11,204
3 src 3,433
4 stress-ng 2,055
5 arcan 1,668
6 LibreSSL 1,404
7 arp-scan 1,069
8 solo5 937
9 rdrview 877
10 puNES 701
11 exploits 608
12 mg 454
13 oksh 383
14 signify 291
15 InitWare 288
16 dhcp 175
17 OpenVi 167
18 pl0c 141
19 loksh 123
20 ts-warp 118
21 minc 111
22 bbcp 76
23 openbsd_hammer2 71

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