55+ calculators for pneumatics, gears, GD&T, sheet metal, heat transfer, hydraulics and more — built by a working mechanical engineer from Pune. No login. No subscription. Ever.
TaskJunction is a free platform with no login, no subscription, no hidden permissions. We offer mechanical engineering calculators, formula references and everyday utilities in one place. Every tool runs locally in your browser so your data stays yours. Our mission: make professional mechanical design calculations fast and accessible for every engineer and student.
Every tool, every calculator, always free to use — supported by ads, no paywalls.
Open any tool instantly. No account, no sign-up ever.
Calculations run in your browser. Your data never leaves your device.
All calculations run locally in your browser — no data is sent to any server.

Hi, I'm Vaibhav Dhokpande, a Mechanical Design Engineer from Pune with over 8 years of experience in fixture design, sheet metal, and tooling for MNC companies.
I'm not a professional developer. I'm an engineer who codes on the side, and that's exactly why I built this.
Here's the real reason TaskJunction exists:
During my daily work, I constantly needed quick calculators, pneumatic cylinder forces, gear ratios, GD&T true position, sheet metal bend allowances. Every time I searched online, I either landed on a cluttered website full of ads, or a tool that asked me to sign up before I could use it. Some didn't even work on mobile. It was frustrating.
So one day in February 2026, I just started building. One calculator. Then another. Then I couldn't stop.
I wanted a single place, clean, fast, no login, no nonsense, where engineers and students could open a tool and just use it. No account. No subscription. No data collection. Just tools that work.
That's TaskJunction.
What started as a few basic calculators has grown into 55+ free tools focused on mechanical design — pneumatics, drives, sheet metal, GD&T, heat transfer, safety factors, plus a formula sheet and handy utilities. Every tool is built from real engineering needs, not guesswork. I personally use most of them in my own work.
I build this in my spare time, after work hours, because I genuinely believe that good tools should be free and accessible to everyone, whether you're a student preparing for GATE or a working engineer on the production floor.
If a tool has helped you even once, that's enough for me.
- Vaibhav Dhokpande, Creator of TaskJunction
Click the ⭐ star on any tool card to save it here for quick access.
Complete roadmap after 10th — 12th Science path & Diploma path with all exams, eligibility & career options.
2 career paths · 10+ exams covered · JEE, GATE, PSU, Diploma route. Step-by-step guide with salary ranges and college options.
Click any node to expand & explore the full hierarchy of manufacturing processes.
Professional-grade mechanical engineering calculators — fixture design, sheet metal, GD&T, machining, pneumatics, gear systems, drive selection and more. All tools run in your browser. No install, no account required.
Machine-specific calculators for lathe, milling, drilling, grinding, welding, press, CNC and EDM operations. Cutting parameters, cycle times, power estimation and process planning — all in one place.
Theory cards + GATE formulas + memory tricks — every subject on one page. No login, no cost.
Real feedback from mechanical engineers and students using TaskJunction daily.
More than just calculators — a community of engineers. Ask questions, suggest new tools, and connect with fellow mechanical engineers.
Vaibhav personally reads every message and typically replies within 24–48 hours.
🔗 If a link shows "full", use the contact form below — we'll send you the active group link within 24 hours.
Saved locally & sent to Vaibhav. Votes from all visitors are tracked in your browser.
📊 Votes are stored locally. Board resets if you clear browser data.
Not sure which tool to use? Select your task and we'll recommend the right calculator instantly.
Have a suggestion, found a bug, or want to collaborate? Reach out, Vaibhav personally reads every message.