VuFind, and the Laminas components that it is built upon, feature integration points for a variety of plugins. The General Plugin Information page describes general principles for building plugins. The list below offers specifics for each type of plugin.

• AJAX Handlers - AJAX actions accessible through the AjaxController
• Authentication Handlers - Custom login functionality
• Autosuggesters - Sources for autocomplete suggestions
• CAPTCHA Handlers - Methods of providing CAPTCHA functionality
• Channel Providers - Sources for Channeled Browse suggestions
• Content Blocks - Arbitrary embeddable content (usually used on home pages)
• Content Provider Components - Loading third-party content (covers, reviews, etc.)
• Cover Layers - Used for dynamically rendering cover images
• Database Gateways - Interfacing with database tables and rows
• DOI Linkers - Used for looking up links based on DOIs
• Fallback Record Loaders - Search backend-specific helpers for loading records when normal retrieval fails
• Form Handlers - Used for persisting data from user-submitted feedback forms
• Hierarchy Components - Support tools for hierarchies and collections
• ILS Drivers - Interfacing with integrated library systems
• Link Resolver Drivers - Interfacing with OpenURL resolvers for embedded results
• Permission Providers - Permission providers are part of VuFind's authorization mechanism.
• Recommendation Modules - Providing context-sensitive suggestions in search results
• Record Drivers - Representing metadata in an object format recognized by VuFind
• Record Tabs - Objects representing tabs on the record view page
• Related Records Modules - Providing context-sensitive suggestions in record views
• Search Objects - Representing different aspects of searches
• Session Handlers - Custom PHP session storage mechanisms
• Sitemap Generators - Generators for additional sitemap files
• Statistics Drivers - Modules for gathering search/record view statistics (obsolete as of VuFind 4.0)

See also the Connecting a New External Data Source page, which discusses VuFind's various search-related plugins and how to connect new search types.

• Controllers - Adding functionality to the overall VuFind web application.
• View Helpers - Adding convenience methods to your view templates.