Handy tools for every day

Free calculators and converters from 313bits. They run on your phone — your numbers, words and photos never leave it — and work offline once opened.

Tools

Small tools, done properly

Each tool here does one everyday job — the sums people in Pakistan and India look up all the time. Land in marla and kanal, gold in tola, a loan instalment, today’s Hijri date, a photo small enough for an online form.

  • Private. Everything is worked out inside your browser. Nothing you type or choose is sent to us.
  • Works offline. Open a tool once and it keeps working without internet.
  • Free, no sign-up. The site is paid for by a few ads, always kept away from the buttons.
  • Install it. Add it to your home screen from the browser menu and it opens like an app.

Questions

Are these tools free?

Yes. Every tool is free with no account and no limits. The site is paid for by advertising.

Is my information safe?

Yes. The tools run in your own browser, so your numbers, your text and your photos are never uploaded to us or anyone else. Some tools remember your last settings on your device only.

Do the tools work without internet?

Yes. Once you have opened the site, the tools are saved on your phone and keep working with no connection.

Who makes Tools?

Tools is made by 313bits, a small studio that builds simple, private web apps for families in Pakistan and India — including Shajra, the family tree app, and free Games.

Can you add a tool I need?

Please ask. Write to faheemshahiiui@gmail.com and tell us what you need — new tools are chosen from what people ask for.