Troink

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

Try ien-c8b for example.

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

What is this?

What is a tracking number and how can it be useful for you?

Learn more

Register your items

Register and get numbers for your own items. It's free!

Get started

Contact

Any questions? Feedback? Get in contact with us. We love to help.

Contact us

How people use Troink

Lost and Found

Lost & Found

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

Inventory Tracking

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.

Event Gear

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.

Event Gear

Inventory Tracking

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

Event Gear

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.

Event Gear

Urban Trees

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