Feature Complete Out-of-the-box
TYPO3 is unique in the quantity and quality of features that are part of its core. While there are over 4,500 extensions in the TYPO3 extension repository, the following features are present without having to install any community-developed extensions.
Ease of Use
TYPO3 is built around content management concepts that are intuitive and easy to master. Pages are organized into a hierarchical page tree. Each piece of content is clearly represented in the page module. All records can be accessed with a universal list module. Built-in WYSIWYG editors allow non-technical users to efficiently and effectively manage content.
Versioning and Workspaces
TYPO3 contains built-in versioning functionality that allows users to revert content to a previous version with ease. TYPO3 also features “workspaces,” which make it possible for users to edit content in one or more draft workspaces, and to confirm editorial approval before content is published.
Multi-Language and Multiple Domains
Support for multiple domains within a single TYPO3 installation and for multiple languages are built-in to the TYPO3 core and are integrated at every level of the system’s architecture.
Granular Front-end and Back-end Access Rights
All front-end pages and content can be limited to specific front-end user groups. Back-end editors can easily be restricted to specific sections of the page tree, modules, and directories in the file system.
No Front-end Design Constraints
Because the TYPO3 front-end and back-end are separate and distinct interfaces, developers have complete and total control of their front-end markup, CSS, and javascript, down to the most minute details.
Front-end Editing
While the back-end offers complete control over all site content, TYPO3 also includes a front-end editing interface for even faster, more intuitive content management by nontechnical editors.
Enterprise Features
In addition to everything one would expect in a sophisticated content management system, TYPO3 also possesses a number of important enterprise features including content-specific caching backends, a database abstraction layer, documented serviced-based APIs for authentication, well-defined interfaces for third-party systems integration, reporting tools, a digital asset manager, and an interface for scheduled jobs.
And More...
For a full list of all that the TYPO3 core has to offer, take a look at the feature matrix on typo3.com. Or browse the list of over 4,500 extensions on the TYPO3 extension repository.