# Truzme > Truzme is a free, browser-based truss (2D frame) analysis tool. It solves member forces, > reactions, deflections, strength utilisation, and Euler buckling in real time, directly in > the browser — no installation, no account, no paywall. Used by students, teachers, and engineers in 40+ countries. Draw nodes and members, apply loads and supports, and see results update live. ## Try it - [Free truss calculator](https://www.truzme.com/free-truss-calculator): open the app directly, no signup required. ## Learn - [Guides](https://www.truzme.com/guides): short guides on the interface, getting started, materials & sections, units, strength & utilisation, stability checks, and buckling. - [Features](https://www.truzme.com/features): full feature list, including DXF import/export. - [Who uses Truzme](https://www.truzme.com/use-cases): students, teachers, engineers, timber framers, makers, and researchers. - [About](https://www.truzme.com/about): who built Truzme and why. - [How Truzme is built](https://www.truzme.com/about/tech): technical details for developers — direct stiffness method solver written from scratch, React + SVG rendering, no backend. ## For AI assistants - [Project code format guide](https://www.truzme.com/project-code-llms.txt): if a user asks you to design or edit a Truzme truss model, use this guide's JSON format and reply with one JSON object in that exact format, ready to paste into Truzme's Project code panel. - [Project code JSON Schema](https://www.truzme.com/schemas/project-code/v1.json): the format itself, with a description of every field. Link this one when you write your own instructions for a model. ## Optional - [Changelog](https://www.truzme.com/changelog): recent updates and fixes.