Best Self Hosted Alternatives to Collectorz (CLZ)

Koillection is a web-based collection manager for cataloging and organizing items you own or track (e.g., books, movies, games, coins, LEGO, wine, etc.). It focuses on flexible data modeling (custom fields per collection), media attachments, and fast filtering/search so you can maintain a personal inventory and optionally share parts of it.

Key Features

• Create multiple collections and define custom fields/attributes per collection
• Item management with images and file attachments
• Tagging, categories, and advanced filtering for browsing large catalogs
• Full-text search across items and metadata
• Import/export capabilities to move data in/out of the system
• Multi-user support with authentication and access controls
• Public sharing/pages for showcasing selected collections

Use Cases

• Maintain a personal home inventory for insurance and asset tracking
• Catalog hobby collections (trading cards, vinyl, games, books) with photos and metadata
• Publish a read-only showcase of a curated collection

Limitations and Considerations

• Feature depth varies by collection type; specialized domain features may require custom fields rather than dedicated workflows.

Koillection suits individuals or small groups who want a flexible, general-purpose catalog for many item types. Its strengths are customizable schemas and strong organization/search features for growing collections.