Is anything I type uploaded?

No. These tools run entirely in your browser — the QR code is drawn on your own device and the random numbers come from your browser's cryptographic source.

Are the random numbers really random?

They come from the browser's cryptographic generator, the same source used for security keys, so they cannot be predicted or reproduced from a seed.

The code itself never expires — it is just encoded text. What can break is the destination, so point codes at a URL you control rather than a temporary link.

4 free tools

Handy Tools

Small tools that each do one job: generate a QR code, roll dice, draw a random number. Everything runs in your browser and nothing you type is uploaded.

NewQR Code GeneratorThe QR Code Generator by ConvertCalculate is a free online tool that lets you instantly create customized QR codes for links, text, contacts, and more, accessible on any device without downloads.Open NewDice RollerDice RollerOpen NewDiceDice OnlyOpen NewRandom Number GeneratorGenerate one or many random numbers in any range, with or without repeats — fair, instant and private.Open

In short

Handy everyday tools: a QR code generator that runs in your browser, and fair virtual dice for games.

Overview

Small tools that do one job and need no sign-up: generate a QR code, roll dice, draw a random number. Everything runs in your browser.

Which one do you need?

Sharing a link or Wi-Fi — a QR code you can download as a PNG
Board games — d4 to d20, several dice at once
Fair draws — cryptographically random numbers in any range

All 4 tools in this section are free, work on a phone, and keep what you type on your own device. Nothing is stored and there is no sign-up.

Handy Tools: frequently asked questions

Is anything I type uploaded?: No. These tools run entirely in your browser — the QR code is drawn on your own device and the random numbers come from your browser's cryptographic source.
Are the random numbers really random?: They come from the browser's cryptographic generator, the same source used for security keys, so they cannot be predicted or reproduced from a seed.
Do QR codes expire?: The code itself never expires — it is just encoded text. What can break is the destination, so point codes at a URL you control rather than a temporary link.