Free online truss calculator.
Fun intended.
More serious than a bridge builder game, less scary than a CAD app.
Features
Build by drawing
Draw and erase members like a pencil, then mirror, clone or rotate — build up to complex trusses
Instant results
No analysis button — draw and get results instantly. Drag anything and they update live: internal forces, reactions, stress and more
Animations
Watch it bend under load, scrub or ramp the animation, and even promote the deformed shape into new geometry
Material & section input
Real E and max-stress values, in round, tube, rectangular, hollow or custom cross-sections — feeding the real displacements, and the stress, utilization and buckling checks
Stability check
Get a heads-up when a structure is unstable or under-supported — parallel supports, a free-floating node, not enough restraints — before you trust the numbers
Strength & buckling checks
See the stress (F/A) in every member, its utilization against the material's max stress, and buckling risk from Euler's formula using the real moment of inertia
What people are saying
A few of the kind words I've received — and there's always room for more.
“Truzme allows students to check their work and get instant feedback. [...] As a teacher this is the Holy Grail scenario for apps. Thank you so much for your contribution to the engineering world!”
“Finding a fully-featured, easy to use, interactive truss solver has been a challenge for many years. [...] Thank you Norbert, you have really cool software, and you share it with the world it is very kind!”
“A remarkable tool! I'm getting addicted to it! Congrats!”
“I just learned about it today thanks to a student who shared it with me. Pretty cool tool to explore structural engineering and truss designs.”
“Interesting, easy-to-use tool for simplified analysis / estimates. Congrats for your work!”
Used Truzme? I'd love to hear about it. Send me a message or reach out on LinkedIn — or leave a review on Buy Me a Coffee.
Built by one person, for everyone
Truzme is a solo project - no team, no investors, no ads. I'm a father, building and maintaining this in the early mornings so it stays free for students and engineers worldwide.
If it's been useful to you, a banana goes a long way. 🍌