Launching today
OddNends Dev
Workshop, Towing & Equipment Engineering Calculators
2 followers
Workshop, Towing & Equipment Engineering Calculators
2 followers
Free, no-login engineering calculators for Mechanics, Fabricators, RVers, and Off-grid builders and DIY. Instant sizing engines for towing, hydraulics, generators, solar pumps, and shop tools.
Free
Launch Team
Framer AI AgentsDesign and publish professional sites with AI
Promoted
Hey Product Hunt! 👋 I’m Jason, the builder behind OddNends Dev.
If you’ve ever tried to calculate winch line pull on an incline, figure out well pump dynamic head, size hydraulic press cylinders, or scan an e-commerce feed without paying a monthly SaaS fee, you know how frustrating web tools can be.
I’m a field mechanic, fabricator, and front-end dev based out in Texas. I got tired of bloated apps requiring logins, monthly subscriptions, and external API calls just to do basic math.
So, I built 50 zero-dependency, lightning-fast engineering utilities that run 100% client-side in your browser. No ads, no sign-ups, no fluff—just pure calculation engines for towing, power systems, shop machinery, and trade maintenance.
A few fan favorites live right now:
Off-Road Recovery Winch & Snatch Block Sizer (Calculates sliding friction vs. incline gravity load and drum torque loss)
Airless Paint Sprayer Tip Sizer (Instantly matches 3-digit spray tip codes like 517 or FFLP310 to your pump GPM)
Well Pressure Tank Drawdown Sizer (Calculates Boyle's Law usable water volume to prevent submersible pump short-cycling)
I built this network solo using vanilla HTML, CSS, and JS. I’d love for you to take them for a spin, test out the math, and let me know what other niche shop or towing tools you want to see next.
Drop your thoughts, feedback, or feature requests below.