A list of popular open source and free tools that can help people accomplish Drupal related tasks.

Most popular Drupal tools

BOA (2013)
BOA is an acronym of high performance Barracuda, Octopus and Aegir LEMP stack. Includes all-in-one bash scripts to install and upgrade high performance Aegir Hosting Systems for Drupal, with Nginx, PHP-FPM, Zend OPcache, MariaDB and Redis.
linux
aegir, clustering, hosting, multisite, paas
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DDEV (2016)
DDEV is an open source tool that makes it dead simple to get local PHP development environments up and running within minutes. It's powerful and flexible as a result of its per-project environment configurations, which can be extended, version controlled, and shared. In short, DDEV aims to allow development teams to use Docker in their workflow without the complexities of bespoke configuration. Pluggable hosting providers with current support for Acquia, Pantheon, Platform.sh and more.
docker
development, docker, multisite, workflow
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Lando (2017)
Lando is a free, open source and cross-platform local development environment and DevOps tool built on Docker container technology and developed by Tandem. It is designed to work with most major languages, frameworks and services and to provide an easy way for users to specify simple or complex development requirements for their projects.
docker
cli, debug, development, docker, testing
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