Every calculation,
one place.
Math, finance, health, education, coding — and now brain tests. Completely free, no registration required.
Our Mission
Instead of wrestling with formulas, you enter what you know and what you need — Hesaplabs does the rest. Hundreds of calculation tools and tests for education, finance, health and everyday life, all in one place, completely free.
Who Is It For?
- ▸Students & teachers — exams, grades, math & physics
- ▸Finance professionals — salary, VAT, interest, payroll
- ▸Engineers & analysts — physics, charts, matrix
- ▸Developers — JSON, Base64, JWT, UUID tools
- ▸Curious minds — reflex, color vision, coordination tests
Our Story
How Hesaplabs was born, and where it's going — briefly.
How Did It Start?
Hesaplabs was born from a simple question: "Why are so many tools scattered, slow, and behind paywalls?" Browsing dozens of ad-heavy, poorly designed pages just to do a simple calculation was the last straw. We wanted a clean, fast, and free alternative — so we built one.
Growth: Users Asked, We Built
After the first few calculators, user requests started flowing in: "Would be great to have payroll," "I need a VAT calculator," "can you add physics graphs?" Every request became a new tool. Today, with 109+ calculators, 13+ coding tools, and 11+ tests & games, we aim to be one of the most comprehensive free calculation platforms available.
Our Philosophy: Simple, Fast, Free
Every tool follows one principle: open it, use it, leave. No sign-ups, no pop-ups, no "upgrade to premium." No obligation to send your data to our servers. If you have internet access, you have access to our tools — on desktop and on mobile.
We're Continuously Improving
Hesaplabs is constantly growing. New calculators, new tests, new articles — all added based on real user needs. If a tool you need is missing or you find a bug, don't hesitate to reach out. Every piece of feedback can spark the next tool or improvement.
What Can You Find?
Hundreds of tools across 10+ categories
Tests & Mini Games
Measure your reflexes, test your memory, discover your coordination — or just have fun. All free, all in your browser.
Color Blindness Test
Ishihara-style screening for deuteranopia, protanopia, and tritanopia.
Reaction Time Test
Your reaction time in milliseconds. Average is 250ms — where do you rank?
Visual Memory Test
Grid grows across 15 levels. Which squares lit up? 3 lives.
Stroop Color Test
The ink color or what it says? Push your brain with the combo system.
Aim Trainer
Click glowing targets fast and accurately. 3 difficulties, rank system.
Line Follow Test
Complete 15 levels without straying. Hand-eye coordination challenge.
Click Speed Test
How many clicks in 20, 40, or 60 seconds? What's your CPS?
Lottery Draw
Enter candidates, animated draw. Multiple winners supported.
Spin the Wheel
Add names, spin, find the winner. Random picker with anti-streak.
Dice Roller
Roll 1–9 dice with animation. Perfect for board games and RPGs.
Coin Flip
Predict for 15 rounds. Anti-streak: same side won't repeat twice.
Completely Free
No sign-up, no subscription, no credit card. All tools always free.
Privacy First
Coding tools and tests run entirely in your browser. No data is ever sent to any server.
Every Device
Optimized for mobile, tablet, and desktop. Dark mode supported.
Important Disclaimer
All calculations and tests are for informational purposes only. For tax, legal, health, or critical technical decisions, please verify with official sources or professional advice. Tools like the color blindness test are not substitutes for medical diagnosis.
Coming to Hesaplabs
- • AI-powered calculation assistant
- • Currency & market simulations
- • User dashboard & saved calculations
- • More brain tests and mini games
Start Exploring Now
109+ calculators, 13+ coding tools, 11+ tests — all free.
© 2026 Hesaplabs — Continuously improving.