ExploreOpen Source & Communities
263 companies
Every company listed under Open Source & Communities in the mecomap library, with a page for each. Part of Developer & Infra.
Map Open Source & Communities →All companies
MozillaFirefox and the open web's conscience
ObsidianLocal-first notes on plain Markdown
BlenderPro 3D creation, free forever
Raspberry PiComputing for tinkerers everywhere
ArduinoOpen hardware for makers
MastodonDecentralized social networking
SignalPrivate messaging as a nonprofit
ProtonEncrypted email and privacy suite
Home AssistantOpen-source smart home hub
Internet ArchiveThe library of everything digital
KubernetesContainer orchestration standard
PostgreSQLThe world's most loved database
VLCThe player that plays everything
OBS StudioFree streaming production studio
LibreOfficeThe open office suite
curlThe URL transfer tool everywhere
FFmpegThe engine behind all video tools
NeovimModern modal editing
GitDistributed version control itself
PythonThe language of AI and everything
RustMemory safety without GC
Node.jsJavaScript on the server
ReactThe UI library that won
VueThe progressive framework
SvelteCompile-away UI framework
LaravelPHP for artisans
DjangoBatteries-included web framework
HomebrewThe missing package manager
NginxThe web server of the web
ApacheFoundation of open software
CanonicalUbuntu's steward
Red HatEnterprise open source
SUSEEnterprise Linux from Europe
Tor ProjectAnonymity infrastructure
NextcloudSelf-hosted collaboration
GoSimple, fast, compiled language
TypeScriptJavaScript that scales
KotlinModern JVM and Android language
SwiftApple open source language
RubyOptimized for programmer happiness
PHPThe web workhorse
ScalaFunctional meets object-oriented
ElixirErlang VM productivity
HaskellPure functional programming
JuliaNumerical computing speed
ZigC without the footguns
NimEfficient and expressive
DartThe language behind Flutter
LuaEmbeddable scripting classic
PerlThe Swiss Army chainsaw
RStatistical computing language
OCamlIndustrial-strength ML
ClojureLisp on the JVM
ErlangNine nines of uptime
GleamFriendly typed BEAM language
WebAssemblyPortable binary web runtime
DebianThe universal operating system
UbuntuLinux for humans
FedoraLeading edge Linux
Arch LinuxKeep it simple, btw
openSUSEChameleon-flavored Linux
Alpine LinuxTiny container-standard distro
NixOSDeclarative reproducible systems
GentooCompile everything Linux
Linux MintFriendly desktop Linux
elementary OSThoughtful, capable, ethical
Kali LinuxPenetration testing distro
TailsAmnesic incognito live system
FreeBSDThe power to serve
Linux FoundationHome of the kernel and friends
kernel.orgWhere Linux lives
GNOMEFree desktop environment
KDEPlasma desktop and apps
Rocky LinuxCentOS successor community
AlmaLinuxCommunity enterprise Linux
GIMPFree image manipulation
InkscapeVector graphics for everyone
KritaDigital painting, free forever
darktableRaw photo workflow
AudacityAudio editing for the masses
ArdourOpen source DAW
ThunderbirdIndependent email client
LanguageToolOpen grammar checking
ZoteroResearch citation manager
CalibreEbook library swiss knife
qBittorrentClean open torrent client
TransmissionLightweight BitTorrent
FileZillaFTP that refuses to die
7-ZipCompression classic
KeePassXCOffline password vault
ElementMatrix protocol messenger
MatrixDecentralized communication protocol
JitsiOpen video conferencing
BigBlueButtonOpen virtual classrooms
Rocket.ChatSelf-hosted team chat
ZulipThreaded open team chat
MattermostSecure collaboration for devs
MediaWikiThe software behind Wikipedia
DokuWikiWiki without a database
BookStackOrganized documentation wiki
Pi-holeNetwork-wide ad blocking
ProxmoxOpen virtualization platform
TrueNASOpen storage OS
SyncthingContinuous private file sync
ImmichSelf-hosted photo library
JellyfinFree media server
CaddyHTTPS by default server
TraefikCloud native reverse proxy
HAProxyThe load balancer standard
VarnishHTTP accelerator cache
OpenSSLThe TLS library of record
Let's EncryptFree certificates for all
OpenSSHSecure shell everywhere
WireGuardModern VPN protocol
OpenVPNThe VPN workhorse
F-DroidFree Android app store
OpenWrtLinux for routers
FreeCADParametric open CAD
OpenSCADCode your CAD
KiCadOpen PCB design
SearXNGSelf-hosted metasearch
GrowthBookOpen source feature flags
jsDelivrFree OSS CDN
unpkgnpm over CDN
cdnjsCommunity JS CDN
uBlock OriginThe content blocker standard
SageMathOpen mathematics software
IINAModern macOS media player
KapOpen source screen recorder
WeblateOpen source translation
GrapheneOSHardened private Android
CalyxOSPrivacy-focused Android
LineageOSCommunity Android for old phones
e FoundationDeGoogled Android OS
CoolifySelf-hosted Heroku alternative
DokployOpen source deploy panel
Kamal37signals deploy tool
QuartoScientific publishing system
AutomergeCRDT library standard
HelixModal editing, batteries included
LazyVimNeovim distro of choice
GhosttyTerminal by Mitchell Hashimoto
WezTermGPU terminal, Lua-configured
AlacrittyMinimal GPU terminal
KittyFast featureful terminal
Starship PromptCross-shell prompt
Oh My ZshZsh framework phenomenon
AtuinShell history, synced
CharmGlamorous CLI tooling
TextualizeTUI apps in Python
RatatuiRust TUI framework
MathJaxMath rendering for the web
ONNXOpen model interchange
OpenWebUISelf-hosted AI chat UI
LibreChatOpen multi-model chat
CryptomatorClient-side cloud encryption
OpenTofuThe Terraform fork
The GuildOpen source GraphQL tooling
PocketbaseBackend in a single file
RevoltOpen source Discord alternative
PostizOpen source social scheduling
MiseDev tool version manager
ChocolateyWindows package manager
pnpmFast disk-efficient package manager
YarnJavaScript package manager
MinifluxMinimalist feed reader
FreshRSSSelf-hosted RSS aggregator
PixelfedFederated photo sharing
PeerTubeFederated video platform
LemmyFederated link aggregator
Delta ChatChat over email
JamiFree distributed communication
MumbleLow latency voice chat
OwncastSelf-hosted live streaming
UmbrelPersonal server OS
CasaOSSimple home cloud system
YunoHostSelf-hosting made simple
UnraidNAS operating system
OpenMediaVaultDebian-based NAS solution
Paperless-ngxDocument management self-hosted
Stirling PDFSelf-hosted PDF toolkit
ResticFast secure backup program
BorgBackupDeduplicating backup
KopiaCross-platform backup tool
RcloneThe rsync for cloud storage
DashySelf-hosted dashboard
PangolinSelf-hosted tunneled reverse proxy
Nginx Proxy ManagerEasy reverse proxy UI
TechnitiumSelf-hosted DNS server
KavitaSelf-hosted reading server
KomgaComics and manga media server
FrappeThe framework behind ERPNext
HandBrakeOpen source video transcoder
DocusaurusDocumentation sites made easy
ShotcutFree open source video editor
StarlightDocs framework from Astro
KdenliveKDE video editor
VitePressVite-powered static site generator
MkDocsProject documentation with Markdown
NuxtThe intuitive Vue framework
TanStackHigh quality open source web libraries
ReduxPredictable state container
ZustandSmall fast state management
MobXSimple scalable state management
React Hook FormPerformant form validation
ZodTypeScript-first schema validation
ValibotModular schema library
PydanticData validation for Python
LitestarFast Python ASGI framework
FlaskMicro web framework for Python
StarletteLightweight ASGI framework
CeleryDistributed task queue for Python
NumPyThe fundamental package for computing
SciPyScientific computing in Python
CrystalFast as C slick as Ruby
FilamentAdmin panels for Laravel
LivewireFull-stack Laravel framework
HotwireHTML over the wire
SidekiqBackground jobs for Ruby
RSpecBehaviour-driven development for Ruby
MicronautJVM microservices framework
KarabinerKeyboard customizer for Mac
HammerspoonAutomation for macOS
EspansoOpen source text expander
AutoHotkeyAutomation scripting for Windows
XMPPOpen messaging standard
EleventyA simpler static site generator
ActixRust web framework
CobraCLI framework for Go
Crates.ioThe Rust package registry
DioxusCross-platform apps in Rust
DrupalEnterprise open CMS
EchoHigh performance Go framework
FishThe friendly interactive shell
PelicanStatic site generator in Python
ZolaStatic site generator in Rust
GinWeb framework for Go
EmacsThe extensible self-documenting editor
FiberExpress-inspired Go framework
HugoThe world fastest static site generator
JekyllTransform plain text into sites
JujutsuA Git-compatible VCS
JoomlaCMS of the mid-2000s web
LeptosFull stack Rust web framework
MailpitEmail testing for developers
MariaDBMySQL community fork
MercurialDistributed source control
MySQLThe popular open source database
NushellA new type of shell
pgAdminPostgreSQL administration tool
PijulPatch-based version control
PostgRESTREST API from your Postgres schema
RocketWeb framework for Rust
SerdeSerialization framework for Rust
SQLiteThe most deployed database
TokioAsynchronous runtime for Rust
UppySleek modular file uploader
VimThe ubiquitous text editor
WezTermGPU-accelerated terminal and multiplexer
XonshPython-powered shell
YewRust framework for web apps
YjsCRDT framework for collaboration
ZellijTerminal workspace multiplexer