Overview
Bolt is a free, open-source content management system designed to be lightweight and easy to use for both editors and developers. First released in 2012 by Two Kings with contributions from the community, it provides a flexible ContentType model that lets you build and maintain sites across devices without heavy setup overhead. The project is actively maintained on GitHub and does not require any paid add-ons to access its core capabilities.
Technology stack
Bolt is implemented in PHP and leverages modern components to stay modular and extensible. Key technical details:
- Built using Symfony components on top of the Silex micro-framework.
- Uses Twig as its templating engine so you can design themes without writing raw PHP.
- Source code and releases are hosted on GitHub with community support and issue tracking.
Content modeling and editorial workflow
Bolt uses a customizable ContentType system that adapts to many use cases, from simple blogs to more complex multimedia sites. Editor and team features include:
- Role-based user levels and permissions for collaborative editing.
- Rich ContentType fields that support different page types and data structures.
- A clean, uncluttered admin UI that simplifies finding and editing content.
Media and uploads
Managing media is straightforward and minimizes repetitive uploads:
- A centralized media stack that keeps your uploads organized and avoids duplicate files.
- Quick access to recently uploaded assets and the ability to upload directly from a device’s camera.
- Support for common file types so images, video, and other assets work out of the box.
Customization and site configuration
Bolt makes it easy to tailor the look and behavior of your site:
- Fully customizable themes and templates.
- Straightforward options to change the site’s name, URLs, and other basic settings.
- Template customization via Twig allows designers to work without deep PHP knowledge.
Requirements and compatibility
Bolt runs on a wide range of hosting environments and database backends:
- Minimum PHP requirement is 5.5.9, and it is fully compatible with PHP 7.
- Works with multiple database engines and can be installed on most web servers.
Choosing Bolt vs. alternatives
Bolt is a solid choice for projects that need structure and scalability without excessive complexity. Compared with some flat-file systems like Grav, Bolt is often better suited for larger or more data-driven sites thanks to its database-backed architecture and richer content modeling.
Technical
- Mac
- Windows
- Free