Our TeamMarch 27, 2026

Why We Built This: The Story Behind timefair.net

byHatch&Noa·2 min read

The Problem: Cluttered, Unreliable Calculation Tools

Search for a free salary calculator or overtime tracker on your phone, and here's what usually happens: a page loads slowly, half the screen is covered in ads, the input fields are buried in the middle, and when you finally get a result, you're not sure you can trust it. When you just need a quick answer, the last thing you want is to navigate through clutter.

Free online tools often prioritize ad revenue over usability. Confusing layouts, slow load times, outdated formulas — it's a frustrating experience that shouldn't be this common. That frustration is what pushed us to build something better.

Our Approach: Simple Tools Built for Real People

Everything we build at timefair.net comes back to three principles.

Keep it simple. Every design choice, every feature follows one rule: if it doesn't need to be here, it won't be. The people using these tools have real questions and limited time. Delivering a fast, accurate answer comes before anything else.

Put the user first. We don't ask "wouldn't this be interesting to build?" We ask "what does someone actually need when they land on this page?" That shift changes how everything gets designed — from the layout of input fields to the way results are displayed.

Build it to last. Shipping a tool and moving on doesn't interest us. We listen to the people who use this site and keep improving — one small step at a time, for as long as it takes.

What's Available Now

timefair.net currently offers 4 free tools:

  • Overtime Calculator: Calculate legal, overtime, late-night, and holiday pay in one place. Quickly check if your overtime pay is correct.
  • Take-Home Pay Calculator: Enter your gross salary and get your estimated take-home pay after taxes and social insurance. Works for annual incomes from ¥3M to ¥8M and beyond.
  • Paid Leave Simulator: Plan how to use your remaining paid leave days — useful before changing or leaving a job.
  • Salary Ticker: A real-time display of how much you've earned today. A small, satisfying way to see your work add up.

All tools are completely free, no registration required. Try one now.

What We're Working Toward

We're still small — 4 tools and growing — and there's more we want to build. But every tool here was made with care, and that won't change as we grow. If there's a calculator or utility you wish existed, we'd genuinely love to hear about it.

We'll keep building — slowly, carefully, and with you in mind.