RodX
Free online 2D FEA calculator. Analyze beams, frames, and trusses. Get instant shear, moment, and deflection diagrams. No install required.
Free online 2D FEA calculator. Analyze beams, frames, and trusses. Get instant shear, moment, and deflection diagrams. No install required.
This page is designed to help you find out whether RodX is good and if it is the right choice for you.
RodX is an online 2D structural analysis tool (FEA) for engineers who need fast answers at the conceptual design stage. Model frames, trusses, beams schemes directly in your browser, apply loads, and instantly see internal force diagrams, displacements and support reactions. Every analysis can be exported as a clean PDF calculation report, ready to share with colleagues or clients. There’s nothing to install, and it works on any operating system. A free plan covers everyday quick checks, and students and teachers get free full access.
Listed in
No Installation Required (Web-Based)
Runs in your browser. No downloads, no waiting on IT, no license dongles.
Verified
Verified against analytical solutions
Built for Fast Decisions
Every unnecessary click is gone. Model, analyze, and get results without hunting through menus.
PDF Reports
Every analysis can be exported as a clean PDF calculation report, ready to share with colleagues or clients
Shared Models
Every model and results can be shared to colleagues, chief (even without an account) for verification
I’m a structural engineer with 15 years of design experience, and for a long time I wanted a simple but genuinely useful tool for quick conceptual sketches: something that would cut a rapid structural check down to a few minutes. The software I used every day was powerful, but far too heavy for testing an idea early in a project. So I started building RodX for myself, as the tool I always wished existed. Because I’ve been on the user’s side for years, I know exactly what engineers need from this kind of software and what just gets in the way. Today’s web technologies made it possible for one engineer to turn that idea into a working product.
RodX is a browser-based 2D structural analysis tool built by a structural engineer with 15 years of hands-on experience in industry-standard heavy FEA software - the tool he always wished he had for quick checks. The interface was designed entirely from scratch, without off-the-shelf UI frameworks, around a single principle: remove every bit of friction between the engineer and the model. No installation, no lengthy setup, no manual to read first. You sketch a frame, truss or beam, apply loads, and get a ready-to-share PDF calculation report in minutes. RodX fills the gap between hand calculations and heavyweight desktop packages like SAP2000, ETABS or Midas Civil: fast enough for conceptual design and hypothesis checks, rigorous enough to trust the numbers.
Easy to learn. A clean interface built specifically for structural engineers, so you can run your first analysis without training or tutorials. Fast to work with. From a blank canvas to a PDF report in a few minutes. Runs in the browser on any OS, with nothing to install. Verified results. The solver and post-processor is benchmarked against analytical solutions, so you can rely on the output. Free for academia. Students get free full access for 1 year, teachers for 2 years. There’s also a free plan for everyday quick checks.
RodX is built for structural engineers at freelance practices and small design firms who need a fast way to check engineering ideas at the conceptual stage. It’s the step between an initial idea and heavyweight commercial software: quick enough to test a structural hypothesis in minutes, without the cost, setup time and learning curve of a full desktop package. A secondary audience is civil and structural engineering students and teachers, who use RodX to learn and teach structural behaviour through a simple, visual interface.
RodX is built with Python and Flask on the backend, and vanilla JavaScript, HTML5 Canvas, HTML, and CSS on the frontend. Structural analysis is powered by PyNite.
We have collected here some useful links to help you find out if RodX is good.
Check the traffic stats of RodX on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of RodX on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of RodX's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of RodX on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
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