Software alternatives · Structural
A free STAAD.Pro alternative in your browser
STAAD.Pro is commercial software for three-dimensional structural analysis and design of frames and buildings. If you need to do similar work without an installation or a licence — for preliminary design, checking, teaching or a quick answer on site — the CivilWorks Atelier studios below cover the same kinds of tasks for free, with step-by-step calculation sheets, drawings and Excel.
Where to do it in CivilWorks Atelier
| Task | Studio | What you get |
|---|---|---|
| 3D frame analysis and design | 3D Frame Studio | Load cases, combinations, modal analysis, member design; a plain-text command file in the classic keyword format |
| 2D frames and continuous beams | Frame & beam studio | SFD, BMD, deflection, influence lines and moving loads |
| Steel buildings | Steel structure studio | Draw a frame, design every member to AS 4100, estimate it |
| Wind and earthquake loads | Wind & Earthquake Loads Studio | AS/NZS 1170.2 and 1170.4, BNBC and others |
Why engineers use it
- Free and instant — no installation, licence server or sign-up; it runs on a laptop, tablet or phone.
- Every step shown — calculation sheets (PDF) with the formulas, values and code clauses, ready to check by hand.
- Drawings and data — A3 drawing sets, SVG and PNG figures, Excel workbooks and JSON project files.
- Codes you work to — Australian Standards, with BNBC 2020 (Bangladesh), US and British codes where the studio offers them.
- Private by design — your inputs stay in your browser.
Where STAAD.Pro still fits
Large three-dimensional models, project-wide data management and analyses that need a validated commercial program and its support remain the job of tools such as STAAD.Pro. CivilWorks Atelier is best used for preliminary design, independent checks of a model, quick site answers, teaching and small projects.
Questions
Is CivilWorks Atelier a free alternative to STAAD.Pro?
For many everyday tasks, yes: three-dimensional structural analysis and design of frames and buildings can be worked through in the free browser studios listed on this page, with calculation sheets and drawings. It is not a copy of STAAD.Pro, does not open its files and is not affiliated with its developer.
Can I use the results for design?
The studios follow published design standards and show every step, so each result can be checked by hand. They are intended for preliminary design, independent checking and learning; final designs should be verified by a qualified engineer.
Do I need to install anything or pay for a licence?
No. Everything runs in a web browser on a desktop, tablet or phone, and the studios are free to use. Your inputs stay in your browser.
Other free alternatives
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STAAD.Pro is a trademark of its respective owner. CivilWorks Atelier is an independent site and is not affiliated with, endorsed by or sponsored by that owner; the name is used only to describe the kind of work being compared. CivilWorks Atelier does not open or create STAAD.Pro files.