
Machinist Toolbox
Omni Calculator
CalcSteel
calculator.net
handyCalc
Numi App
Maker Calc
well maintained engineering calculators that show the formula and standard behind every result. Springs, gears, GD&T, machining and more. Metric & imperial.

Developer documentation that anyone can edit
Website, pricing, platforms and company facts side by side.
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| Website | machinecalcs.com | opendevdocs.com |
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What each product offers, as listed by its team.


Possible disadvantages
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An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using MachineCalcs and Open Devdocs. For example, how are they different and which one is better?
When comparing MachineCalcs and Open Devdocs, you can also consider the following products.
Manufacturing Vertical Software
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Helping you make rational decisions, one calculation at a time.
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Model, detail and generate drawings for steel structures directly in your browser. 3D editor, automatic sheets, PDF export.
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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Numi is a beautiful text calculator for Mac.
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