CrizaTools

Get the CrizaTools app

All 33 tools on your home screen, opening like a normal app and working without internet. It is free, takes under 1 MB to start, and needs no app store or account.

Android (Chrome, Edge, Samsung Internet)

  1. Open tools.criza.dev in Chrome.
  2. Tap Install app at the top of the page, or open the browser menu (⋮) and choose Install app or Add to Home screen.
  3. Confirm. CrizaTools appears in your app drawer and home screen.

iPhone and iPad (Safari)

  1. Open tools.criza.dev in Safari.
  2. Tap the Share button (the square with an arrow).
  3. Scroll and tap Add to Home Screen, then Add.

Windows, Mac and Linux (Chrome or Edge)

  1. Open tools.criza.dev.
  2. Click the install icon at the right of the address bar, or Install app on the page.
  3. CrizaTools opens in its own window and appears in your Start menu or Applications.

What you get

  • Works offline: after installing, every tool is saved on your device, so invoices, QR codes and calculators work without a connection.
  • Small: no large download; it uses the same light pages as the website.
  • Always up to date: new tools and fixes arrive automatically the next time you are online.
  • Private: no account, and your work stays on your device, as on the website.
  • Easy to remove: uninstall it like any other app.

Need billing software instead?

For daily billing with stock, customers and thermal receipts, get CrizaVoise, our free desktop billing app for Windows, Linux and macOS.