How to Program an NFC Tag
To program an NFC tag, you use a free smartphone app to write an NDEF message - such as a URL, text or contact - onto the tag's memory. Hold the phone over the tag, select the action you want, and tap "Write". The tag then stores that data permanently (or until rewritten), so anyone who taps it later triggers your action automatically.
Why Choose IDrfid
NDEF Data Format
NDEF is the standard data format that lets any NFC phone read your tag.
Write Any Action
Program URLs, WiFi credentials, contacts, text or app launch commands.
Rewritable Tags
NTAG213/215/216 tags can be rewritten, or locked read-only to prevent changes.
Pre-Encoded Option
Skip DIY and let IDrfid pre-encode tags for plug-and-play deployment.
Technical Specifications
| Frequency | 13.56MHz |
| Chips | NXP NTAG213/215/216 |
| Memory | 144 to 888 bytes |
| Tools | Android/iOS NFC app |
Related Products
Frequently Asked Questions
What do I need to program an NFC tag?
You need an NFC-enabled smartphone and a free app like NFC Tools to write NDEF data onto the tag.
Can I lock an NFC tag after programming?
Yes, NTAG chips can be locked read-only to prevent rewriting, protecting your content from tampering.
Can you program NFC tags for me?
Yes, as an NFC tag manufacturer IDrfid pre-encodes NDEF messages, URLs and custom data so tags work out of the box.
Step-by-Step Guide
- 1
Choose an NFC app
Install a free NFC app such as NFC Tools on your smartphone to read and write tags.
- 2
Select the action
Choose what to write - a URL, text, contact, WiFi credentials or app launch command.
- 3
Write to the tag
Hold your phone over the NFC tag and tap "Write" to store the NDEF data onto the chip.
- 4
Test the tap
Tap the tag with any NFC phone to confirm it triggers the action you programmed.
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