Spec sheets that work the way you do.
The specification tool for the built environment. Architects, engineers, interior designers, and builders use it to plan materials, products, and surfaces in a single file.
The whole project, one file.
I built Tinn because the tools available to architects, engineers, and designers for specifying a project were built for someone else: project managers, retailers, e-commerce teams. Not for the way we actually plan a space.Simon Flatin · founder
A specification tool that fits the way the built environment actually gets planned.
-
Offline by default
Your projects are local .tinn files. No login required to open them, no spinner waiting for a server. Works on the train, on site, in basements.
-
Print-ready, always
Specifications belong on paper as often as on screen. Tinn exports clean A4 PDFs that look like they came from a print shop, not a SaaS dashboard.
-
Mood and concept on one canvas
Drop images, draw annotations, snap to rulers, and pin specs to materials. The board lives next to the spec sheet, same file, same place.
-
Your work, your file
Every project is a single .tinn file you own. Drop it in Dropbox, email it to a colleague, archive it in 2040. No vendor lock-in, no migration scripts.
Get notified
Leave your email. We'll write when there's something worth telling you, not on a schedule.
Plan it. Spec it. Print it.
Built by an architect. Materials, products, surfaces, dimensions, in one file you own.
Download for free ↓