
DevTools Advanced
FullStackToolkit
DevFinanceTools
JSON Formatter & Validator
AllDevToolsHub
Boop
DeveloperTools.Tech
120 free browser-based developer utilities. No sign-up required.

AutoCalcs
calc4fem
CalcSteel
Calculon
ClearCalcs
Maker Calc
MechanixCalc
Amni-Calc — free WASM engineering modules for bolted joints, stress analysis, beams, and related mechanical checks. Theory + calculator on the same page; data never leaves the browser. Open modules at amni-scient.com/calc/ (e.g. bolts, stress, beam).

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | devtoolstack.io | amni-scient.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from the United States · 1 - 9 employees |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of DeveloperToolStack yet.
37 engineering calculators in one browser tab: beams, bolts, springs, seals, fatigue, fluids, heat exchangers, pressure vessels, HVAC, electrical, machining, hydraulics, rigging, CAD Studio, and more. Each module carries the theory, a worked example, and a cited standard. The math runs as...
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing DeveloperToolStack and Amni-Calc.
Amni-Calc's answer:
Amni-Calc's answer:
Everyday engineering calcs were either toy web calculators or install-bound software. I built WASM kernels with cited standards, worked examples, Plotly and 3D, and put them in the browser with no account.
Amni-Calc's answer:
Rust compiled to WebAssembly, HTML and JavaScript, Plotly, and Three.js. Hosted on amni-scient.com.
Amni-Calc's answer:
It's 37 engineering calculators in one browser tab: beams, FEA, bolts, springs, seals, fatigue, fluids, heat exchangers, pressure vessels, HVAC, electrical, machining, hydraulics, rigging, CAD Studio. Each module has theory, a worked example, and a cited standard. The kernels run as WebAssembly in the page, so you don't install anything, I don't collect telemetry, and I don't make you create an account.
Amni-Calc's answer:
You get 37 modules in one tab, each with theory, a worked example, and a cited standard. It runs locally in the browser, free, with no account and no telemetry. Closest peer on my listing is MechanixCalc.
Amni-Calc's answer:
Mechanical and design engineers, students, and anyone who sizes beams, bolts, springs, seals, fluids, heat exchangers, vessels, HVAC, or electrical work in a browser.
Share your experience with using DeveloperToolStack and Amni-Calc. For example, how are they different and which one is better?
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