Open-Source CMS · backdrop

backdrop

Backdrop is a GPL v2 PHP-based content management system forked from Drupal, designed for ease of use and rapid learning. It enables non-technical users to manage websites, blogs, galleries, and intranets with minimal complexity out of the box.

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Source: GitHub — github.com/backdrop/backdrop

GitHub stars

400

Forks

PHP

Primary language

GPL-2.0

License (OSI-approved)

Key facts

Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.

Field	Value
Repository	backdrop/backdrop
Owner	backdrop
Primary language	PHP
License	GPL-2.0 — OSI-approved
Stars	1k
Forks	400
Open issues	741
Latest release	1.34.2 (2026-06-10)
Last updated	2026-07-06
Source	https://github.com/backdrop/backdrop

What backdrop is

A PHP CMS requiring MySQL 5.5+, PDO, and Apache/Nginx, with a modular architecture inherited from Drupal but streamlined for simpler onboarding. Active development (latest release June 2026, last commit July 2026) with 741 open issues and extensible APIs.

Quickstart

Get the backdrop source

Clone the repository and explore it locally.

terminalbash

1git clone https://github.com/backdrop/backdrop.git2cd backdrop3# follow the project's README for install & configuration

Need it deployed, integrated, or customized instead? DEV.co ships production installs.

Best use cases

Content-Heavy Website for Non-Technical Teams

Organizations needing a straightforward CMS for blogs, news sites, and documentation portals where quick content publishing and minimal custom development are priorities.

Intranet and Knowledge Management

Internal corporate sites and wikis where ease of use and fast user onboarding are critical, and teams prefer a lightweight alternative to enterprise-grade systems.

Rapid Prototyping and Small-to-Medium Projects

Agencies and freelancers building multiple small to mid-sized websites quickly, leveraging Backdrop's learning curve advantage over Drupal and out-of-box functionality.

Implementation considerations

PHP 7.1+ and MySQL 5.5+ are hard requirements; verify server environment before deployment. Latest release (1.34.2) should be used; older PHP versions strongly discouraged by maintainers.
Backdrop inherits Drupal's module system; contributed modules (separate GitHub org) expand functionality but introduce dependency and security review burden—vet third-party code carefully.
Installation is web-based and relatively straightforward (database setup, then web wizard), but production hardening (SSL, database security, backup strategy) must follow thereafter.
GPL v2 copyleft applies; any customizations or derivative distributions must remain open-source. Closed-source commercial use requires legal clarity and likely licensing adjustments.
741 open issues suggest active development but also deferred work; assess issue severity and priority relative to your timeline.

When to avoid it — and what to weigh

Require Proprietary or Permissive Licensing — GPL v2 enforces open-source derivative works; unsuitable if commercial closed-source extensions or proprietary integrations are mandatory. Requires legal review for commercial distributions.
Need Enterprise SaaS or Serverless Deployment — Backdrop requires traditional hosting (PHP 7.1+, MySQL 5.5+, Apache/Nginx). Not designed for managed, containerized, or serverless environments without custom infrastructure.
Mission-Critical Security Compliance — No explicit security certifications, penetration testing records, or compliance claims (HIPAA, SOC 2, etc.) documented. Security issues are handled privately but transparency is limited in the public data.
High-Volume e-Commerce or Scaling Demands — While e-commerce is possible, the architecture and community focus suggest Backdrop is better suited for content-first sites. Scaling and high-concurrency scenarios are not emphasized.

License & commercial use

GPL v2 (or later) license. All code must remain open-source. Distributions of modified code must license under GPL v2 or any later GPL version. No proprietary extensions permitted without separate agreements.

Commercial use of unmodified Backdrop is permitted under GPL v2. However, any commercial modifications, distributions, or closed-source derivative works violate the license and require explicit legal review and likely relicensing. Consult a lawyer before integrating into proprietary products or SaaS platforms.

DEV.co evaluation signals

Editorial assessment — not user reviews. Directional, with an explicit confidence level.

Signal	Assessment
Maintenance	Active
Documentation	Adequate
License clarity	Clear
Deployment complexity	Moderate
DEV.co fit	Good
Assessment confidence	High

Security considerations

Backdrop has a designated security team ([email protected]) managing vulnerabilities in a private repository before disclosure—a responsible practice. However, no public security audit, penetration test results, or CVSS disclosures are evident in provided data. Verify release notes for CVE patches and evaluate contributed modules separately for security posture. GPL v2 source availability aids code review but does not guarantee secure architecture.

Alternatives to consider

Drupal

Parent project; more extensive module ecosystem, larger community, and enterprise adoption. Steeper learning curve and higher complexity than Backdrop by design.

WordPress

Simpler, more widely hosted, larger plugin ecosystem, and permissive licensing (GPL v2, but more commercial ecosystem). Better for blogs and small sites; weaker for complex content structures.

Statamic or Craft CMS

Modern PHP alternatives with cleaner APIs and flexible licensing (including permissive options). Better developer experience but smaller communities and varying SaaS/self-host models.

Software development agency

Build on backdrop with DEV.co software developers

Backdrop offers a straightforward path to content management with a strong security response process. However, GPL v2 licensing, moderate deployment complexity, and a smaller ecosystem than Drupal or WordPress require careful fit analysis. Contact Devco's web and API teams to assess Backdrop's viability for your project, navigate licensing implications, and plan custom integrations.

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backdrop FAQ

Can we use Backdrop in a commercial SaaS product?

Not without legal review. GPL v2 requires derivative works to be open-source. SaaS use of unmodified Backdrop is permissible under the AGPL loophole debate, but modifications must be GPL-licensed or distributed. Consult a software license attorney.

What is Backdrop's relationship to Drupal?

Backdrop is a fork of Drupal created to serve developers who value ease of use and fast learning over architectural flexibility. It inherits Drupal's module system and APIs but with a streamlined codebase and smaller scope.

How mature is the security posture?

Backdrop has a private security response process, which is good practice. However, no public security audits, certifications, or CVE disclosures are documented. Assume standard open-source maturity; conduct your own code review or third-party audit for sensitive use cases.

Can Backdrop run on cloud platforms like AWS, Azure, or GCP?

Yes, via standard PHP/MySQL hosting (EC2, App Service, Compute Engine, etc.), but no official Docker, Kubernetes, or IaC templates are documented. Custom deployment scripts or managed WordPress-style services can wrap Backdrop, but this requires engineering work.

Work with a software development agency

DEV.co is a software development agency delivering custom software development services to companies building on open source. Our software developers and web developers design, integrate, and ship production systems — spanning web development, APIs, AI, data, and cloud. If backdrop is part of your open-source cms roadmap, our team can implement, customize, migrate, and maintain it.

Evaluate Backdrop for Your CMS Needs

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