Recommended
Getting Started kit
The viewer, the Diagram Importer, the reader-only Lite, the Tension Project Map, twelve example maps and the full offline documentation with PDF guides.
Try it free · version 2.8.0 · 18 October 2026
Your first map in ten minutes.
One folder, one HTML file. Nothing to install, nothing to sign up for, nothing sent anywhere.
Downloads
Pick a kit.
For authors
Starter kit
Everything in Getting Started, plus the authoring files: the pack schema, the field-by-field guide, the assistant prompts and a complete exemplar map.
Read first
Documentation
Eighteen pages and eight PDF guides — the same documentation that ships inside both kits, to read before you download.
Three steps
From ZIP to map.
No installer and no account. If you can open a web page from a folder, you can run it.
- 01
Unzip anywhere
Your desktop, a shared drive, a USB stick. The folder is the whole product.
- 02
Open threadline.html
In Edge, Chrome or Safari. It opens straight from the folder.
- 03
Drop a diagram on it, or an example
A Visio, draw.io, ArchiMate or SVG file — or one of the twelve examples in the kit.
Questions
Before you download.
Does it upload my diagrams?
No. It runs entirely in your browser, from the folder you unzipped. Nothing you open is sent anywhere.
Do I need an AI assistant?
No. The Importer reads diagram files directly. An assistant helps only when you start from documents or a picture, and the prompts are in the kit.
Who owns the maps I make?
You do. [Confirm wording against the licence.]
What does it cost?
[Free for evaluation and individual use — confirm terms.] Teams and organisations: see Pricing.
Can I use it at work?
[Organisational use — confirm terms and contact.]
What about ThreadLine Pro?
[Availability to confirm.]
Release notes
Hear when the next version lands.
Leave an address and get a note when a new version is released.