Collectary

Collectary is a cross-platform app for cataloguing the things you collect — books, coins, board games, sneakers, houseplants, trading cards, whatever you track. You define each collection with typed fields, add items, and optionally share and sync your data across devices.

It's built with .NET and Avalonia, runs on the desktop, and compiles to WebAssembly to run in a browser tab — try the Live Demo without installing anything.

Highlights

• Custom collections. Start from 20+ built-in templates (Books, Coins, Board Games, Sneakers, Wine, Video Games, …) or build your own.
• 22 field types. Text, rich text, numbers, currency, dates, durations, ratings, colours, images, tags, single/multi choice, and more — see Field Types.
• Profiles. Pick a profile from a row of tiles — no passwords, just a name. See Profiles.
• Sharing. Grant other profiles read or write access to a collection. See Sharing.
• Sync. Keep collections in step across devices through a shared folder, with conflict resolution. See Sync.
• Themes & languages. Light/dark themes and English/German UI. See Settings.

Where to start

• New here? Read Getting Started, then create your first collection.

• Just want to look? Open the Live Demo — no install, no account.

• Contributing? Jump to the Developer Guide.

Screenshots

Screenshots will be added under docs-src/assets/ and embedded throughout the user guide.