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Dev tools · November 9, 2023

MecSimCalc – a Streamlit alternative, but for computational apps

The simplest way to build and share computational tools on the web. Create and share your Python web apps in minutes for free.

MecSimCalc – a Streamlit alternative, but for computational apps launched on November 9, 2023 with 5 votes, #1,744 of 4,332 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 2 years on.

What it does

Drag and drop to build powerful input forms — no frontend code required. Upload your Python script or describe your idea — MecSimCalc builds the app for you. Go live in one click — hosting, interface, and deployment all handled for you. Monetise your expertise, build interactive tools, and start earning — no advanced coding needed. “ MecSimCalc helped turn our CSA S16-19 steel models into interactive web tools. I could validate the code, test scenarios quickly, and share results without Excel headaches. ” “ We converted complex masonry and thermal Excel models into fast web apps without sacrificing rigor. Now our calculators are instantly accessible in a browser for practitioners and…from mecsimcalc.com

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