Bower   defunct

bower.io

A package manager for the web

Gulp  

gulpjs.com

The streaming build system • Support us at https://opencollective.com/gulpjs 

Helm  

helm.sh

The Package Manager for @kubernetesio, now a #CNCF graduated project. Check out Helm V3 now!

Release Butler  

releasebutler.now.sh

Twitter bot that helps you stay up to date with releases of frontend frameworks & libraries! #angular #react #vue #rxjs #typescript #webpack by @tomastrajan

LuaRocks  

luarocks.org

A website for hosting Lua modules. Twitter account run by @moonscript

Yarn  

yarnpkg.com

pip

pypi.org

Atom Package Manager

github.com

Webpack

webpack.js.org

WebAssembly

webassembly.org

VCPKG

github.com

SwiftPM

swift.org

Snappy aka Snapcraft

snapcraft.io

SDKMAN

sdkman.io

Scoop Installer

scoop.sh

Rollup

rollupjs.org

Browserify

browserify.org

Pundle

Free Pascal

freepascal.org

Parcel

parceljs.org

npm

npmjs.com

Metro Bundler

facebook.github.io

MacPorts

macports.org

Chocolatey

chocolatey.org

Lerna

lernajs.io

Homebrew

brew.sh

Clang

clang.llvm.org

Composer

getcomposer.org

Grunt

gruntjs.com

Go Version Manager

github.com