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Secure QR Code Generator

Why Client-Side QR Codes?

Using standard online QR generators sends your input data directly to third-party tracking servers. If you are generating a QR code for a sensitive cryptocurrency wallet address or private URL, this exposes your data. This tool runs 100% locally in your browser — your text inputs and wallet keys never leave your machine.

Cryptocurrency URI Schemas

To ensure wallet apps recognize your address correctly, they use standardized URI formats:

  • Bitcoin: bitcoin:[address]?amount=[val]
  • Ethereum: ethereum:[address]
Choosing the quick format templates automatically applies these tags for seamless scanning.

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Support the Project

Every contribution keeps the tools free & independent

30+ Free Tools
0 Data Logged
100% Client-Side

CryptoTools.site is independently built and maintained. If these tools have been useful to you, a crypto contribution directly sustains development and hosting — no middlemen, no subscriptions.

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Bitcoin (BTC) · Native SegWit (bc1q)