Open source JavaScript engine by Google

https://v8.dev/

Programming language and compiler that converts Vala code into C code

https://wiki.gnome.org/Projects/Vala

Memory debugging and profiling tool

https://github.com/paulfloyd/freebsd_valgrind

Markup Validation Service from the World Wide Web Consortium (W3C)

http://validator.w3.org/

High-performance data structure server that primarily serves key/value workloads

https://valkey.io/

Vamp audio analysis plugin SDK

https://www.vamp-plugins.org/

Video processing framework with simplicity in mind

https://www.vapoursynth.com/

High-performance HTTP accelerator

http://www.varnish-cache.org/

High-performance HTTP accelerator

https://varnish-cache.org/

Open source Gameboy Advance emulator

http://vba.ngemu.com/

GNU VCDImager/VCDRip -- The GNU VideoCD Image Maker/Ripping Tool

http://www.gnu.org/software/vcdimager/

User-mode virtual ethernet infrastructure

https://github.com/virtualsquare/vde-2

Merchant Of Venice, a stock market trading program

http://mov.sourceforge.net/

PCB (printed circuit board) design software

https://sourceforge.net/projects/veroroute/

Virtual Ethernet Interface

https://github.com/hmatyschok/if_vether

Synchronize DNS with server names and aliases from Apache vhost

http://man.gnu.org.ua/manpage/?1+vhostcname

Emulator for Commodore C64, C128, VIC20, PET, and CBM-II

https://vice-emu.sourceforge.io/

Programming font with cursive italics and ligatures

https://rubjo.github.io/victor-mono/

Fast and simple image viewer

http://siyanpanayotov.com/project/viewnior/

Graphical class browser for Xt

https://gitlab.freedesktop.org/xorg/app/viewres

Web-based Version Control Repository Browsing

https://www.viewvc.org/

VIGRA stands for "Vision with Generic Algorithms"

http://ukoethe.github.io/vigra/

Improved version of the vi editor (tiny flavor)

https://www.vim.org/

VNC client for the GNOME Desktop

http://www.gnome.org/projects/vinagre/

VNC server that allows for remote access to your GNOME desktop

https://wiki.gnome.org/Projects/Vino

Toolkit to interact with virtualization capabilities

https://virt-manager.org/

Provides a graphical viewer for a guest OS display

https://virt-manager.org/

VirtualBox additions for FreeBSD guests

https://www.virtualbox.org/

VirtualBox additions for FreeBSD guests

https://www.virtualbox.org/

VirtualBox additions for FreeBSD guests

https://www.virtualbox.org/

VirtualBox additions for FreeBSD guests

https://www.virtualbox.org/

VirtualBox kernel module

http://www.virtualbox.org/

VirtualBox kernel module for FreeBSD

https://www.virtualbox.org/

Redirects commands from an OpenGL app to another X server

https://www.virtualgl.org

Loadable dynamic extension to both SQLite and SpatiaLite

https://www.gaia-gis.it/fossil/virtualpg/index

GUI tool combining CLI JDK tools and profiling capabilities

https://visualvm.github.io/

vitetris is a terminal-based Tetris clone by Victor Nilsson.

http://victornils.net/tetris/

Vixie Cron

https://github.com/vixie/cron/

Direct3D 12 to Vulkan translation

https://www.winehq.org/

Profile Vulkan devices to find their peak capacities

https://github.com/nihui/vkpeak

Qt based multimedia player and streaming server

https://www.videolan.org

Locks a terminal

http://freshmeat.net/projects/vlock

Management system for bhyve virtual machines

https://github.com/churchers/vm-bhyve

Connect virtual machines to the tor network

https://github.com/yurivict/vm-to-tor

Perceptual video quality assessment based on multi-method fusion

https://github.com/Netflix/vmaf

Fast offline password cracker for VNC passwords

http://www.randombit.net/projects/vnccrack/

Multi-client VNC proxy server

https://sourceforge.net/projects/vnc-reflector/

Free and healthy typeface for bread and butter use

http://vollkorn-typeface.com/

Play, encode, and manage Ogg Vorbis files

https://xiph.org/vorbis/

Client for Cisco 3000 VPN Concentrator

http://www.unix-ag.uni-kl.de/~massar/vpnc/