Free structural engineering tools
Free analysis and design tools for beams, frames, trusses, steel and concrete sections — built by chartered engineers.
Common questions
CalcForge's structural tools cover the full workflow from section properties through to global analysis. Start with the Moment of Inertia calculator to get section properties for an arbitrary or standard shape, then take that section into the Steel Section Designer or Concrete Section Designer to check capacity against Eurocode 3 and Eurocode 2 respectively (AISC checks are also available on the steel side). For whole-structure behaviour, the Beam Calculator handles simply supported, cantilever and indeterminate spans with full bending moment, shear force and deflection diagrams, while 2D Frame Analysis and 2D Truss Analysis extend the same solver to multi-member frames and pin-jointed trusses. The 3D Finite Element Analysis tool runs the same checks in three dimensions for structures that can't be reduced to a 2D model. Every tool here is free to use with no sign-up, and each one is built on an open-source engineering library — see each calculator's own page for the specific package and licence.
Yes. Every tool linked from this page runs a free calculation with no sign-up required. Creating a free account additionally lets you save a design and, on most calculators, export a PDF report — a small number of deeper analysis features are reserved for a paid tier, noted on that calculator's own page.
You don't need to be a developer to publish one. Our Python for Civil Engineering certification (enrol here) walks you through building and publishing four tools like the ones on this page, using the same open-source engineering libraries CalcForge itself is built on.