Acquia will end support for BLT on December 31, 2024. For more information on how to replace your BLT implementation with updated functionality, see You don’t need BLT on Acquia Cloud.

BLT (Build and Launch Tool), available on GitHub, provides an automation layer for testing, building, and launching applications running the current Drupal version.

To improve efficiency and collaboration across Drupal projects, BLT provides both a common suite of tools and standardized structure. The tools and structure will help developers reduce incidents of duplicated work, speed up project configuration, and onboard new developers faster.

Using BLT for your Drupal projects will help you meet the following goals during your development cycles:

  • Provide a standard project template for Drupal based projects

  • Provide tools automating the configuration and maintenance work for projects

  • Document and enforce Drupal standards and best practices through default configuration, automated testing, and continuous integration

BLT’s scope is discretely defined. It’s not intended to provide:

  • Drupal application features such as workflow, media, layout, and prefabricated content types

  • A local hosting environment

  • A replacement for good judgement (as with Drupal, it leaves you the freedom to make mistakes)


BLT offers the following features for your organization’s use:

Getting started

To get started with BLT, review BLT installation instructions, and then review the following usage documentation:

Video tutorials

Releases and versioning

BLT releases follow semantic versioning. Major releases will contain backwards-incompatible changes to commands and configuration, while minor and patch releases will always be backwards-compatible.


Acquia only provides support for the most recent BLT release.

Contributing to BLT

If you would like to help improve BLT, file issues from its GitHub issue queue. For contribution guidelines and instructions, see Contributing to BLT.


This program is free software: you can redistribute it and / or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.