A crypto QR code is a scannable square image that encodes a wallet address (and sometimes a payment amount). Scanning it fills in the address automatically, so you avoid mistyping a long string of characters. This guide explains how to use one safely.
What it does
A wallet address is a long string that's easy to mistype — and a single wrong character can send funds to the wrong place. A QR code encodes that address as an image you can scan with a wallet app, which fills it in instantly and accurately [1]. Many wallets show your address as a QR code for receiving, and let you scan someone else's to send [2].
Using it safely
The bottom line
A QR code is just a convenient, error-proof way to share a wallet address. To receive, show your QR code to the sender; to send, scan the recipient's. One safety habit matters most: after scanning, glance at the address that appears and confirm it's the one you expect, since a malicious QR could point somewhere else. To keep learning the fundamentals, follow more from Bitbase Academy.
Related reading
Other Bitbase articles on this topic:
- What Is Transaction Malleability? A Bug SegWit Fixed
- How to Lower Crypto Trading Fees: Practical Ways to Pay Less
Disclaimer: This article is educational content from Bitbase Academy, provided for information only. It does not constitute investment, trading, tax, or financial advice. Crypto assets are volatile; assess your own risk. Written as of June 2026; refer to the latest official information.
References
[1] Coinbase, "What is a crypto wallet?" coinbase.com
[2] Ledger, "How do crypto wallets work?" ledger.com
