How to program an NFC card
Open the Cardixn NFC writer on your phone, hold your blank NFC card to the back, and tap 'Write.' Your Cardixn link is now embedded. Anyone who taps your card gets your business card instantly.
Cardixn · Free Tools
NFC business card writer
Turn any blank NFC card or sticker into your business card in 30 seconds.
Bought blank NFC cards on Amazon? Cardixn's NFC writer lets you program them with your digital business card link in seconds. Works with any NTAG213, NTAG215, or NTAG216 tag — the standards used by 99% of NFC business cards.
Which tags work
NTAG213 (144 bytes, cheapest), NTAG215 (504 bytes, most popular), NTAG216 (888 bytes, most storage). Cardixn links fit comfortably in all three.
Buy Cardixn-branded NFC cards
Prefer premium metal or PVC cards with your logo laser-etched? Order Cardixn hardware cards and skip the DIY step entirely.
Why Cardixn
Works with all blank NFC tags
NTAG213, 215, 216 supported.
30-second programming
Point, tap, done.
iPhone + Android
Works on any modern NFC-capable phone.
Premium hardware option
Order metal or PVC branded cards from us.
Frequently asked questions
Is Cardixn free to use?
Yes. You can create, share and receive digital business cards on the free plan. Premium templates, analytics and NFC provisioning are available on paid tiers.
Do recipients need the Cardixn app?
No. Cards open in any modern browser via a public link or QR code. Recipients can save the vCard to their phone with one tap.
Can I edit my card after sharing?
Yes. Updates apply instantly. Anyone who scanned or saved your card always sees the latest information — no need to re-share.
Is my data secure?
Cardixn uses end-to-end encrypted storage, row-level security, and never sells your data. You control what is public and what stays private.
Does Cardixn work offline?
Cards are cached for offline viewing once opened, and QR codes can be downloaded as high-resolution PNGs to print on badges, packaging or business collateral.