Troink
Mark any item, take notes or inform people about it and get it back if it's lost.

Troink lets you give every item a unique number and digital home — simple, flexible, and for free.
How people use Troink

Lost & Found
Attach a Troink number to your bag, keys, or bike. If it’s lost, people can return it to you.

Tools & Equipment
Easily keep track of your home-office, workshop items, or special event supplies. Label your tools and devices to keep track of them in workshops, offices, or while lending them.

Household Items
Use Troink to label your appliances and equipment at home. Keep essential details like purchase dates, warranty periods, or repair history in one place and always accessible.

Inventory Tracking
Track and organize your items easily with unique Troink Numbers, images, and smart locations for clear, flexible inventory management.

Collections & Sharing
Organize books, records, art, or hobby items with Troink Numbers when giving or lending items to friends or family, making it simple to share notes, instructions, or memories and keep track of where they are.

Urban Trees
Give each tree a Troink Number to track care and maintenance centrally. Citizens can report issues or updates directly for individual trees.