Short answer: an NFC tag is a physical shortcut. Tap it and your phone opens a URL, joins a Wi-Fi network, adds a contact, launches an app or runs an automation. Tags cost well under a pound each in packs, need no battery, and can be rewritten thousands of times unless you deliberately lock them.
Our NFC Write & Read Tags app is the toolkit for writing and automating these tags. See how to write NFC tags for the step-by-step process, or NFC tags for smart home automation for setup ideas.
What Is an NFC Tag?
An NFC (Near Field Communication) tag is a tiny, battery-free chip that stores data. When you tap your phone on it, the tag transfers its data to your phone, which can then perform an action â open a link, share a contact, connect to Wi-Fi, or trigger an automation.
Tags cost as little as $0.30 each and last indefinitely (no battery needed). You can write and rewrite data to them using an app like NFC Write & Read Tags.
Smart Home Ideas
- Wi-Fi sharing tag â Place by your router. Guests tap to connect instantly without typing the password
- Bedtime routine â Tap to turn off lights, lock doors, set alarm, enable Do Not Disturb
- Morning routine â Tap to disable alarm, turn on lights, show weather forecast
- Movie night â Tap to dim lights, turn on TV, open streaming app
- Leaving home â Tap to turn off all lights, set thermostat to away, arm security
Work & Productivity
- Conference room setup â Tap to connect to room's Wi-Fi and open video conferencing app
- Focus mode â Tap to enable Do Not Disturb, open work apps, start a timer
- Time tracking â Tap to start/stop time tracking for projects
- Quick notes â Tap to open your note-taking app with a new note ready
Personal & Social
- Digital business card â Tap to share your contact info, website, and social links
- Social media profiles â Tap to open your Instagram, Twitter, or LinkedIn
- Portfolio link â Tag on your physical portfolio or resume that opens your online work
- Event RSVP â Tap to confirm attendance at parties or events
Health & Fitness
- Gym check-in â Tap when arriving at the gym to log workout start time
- Medication reminder â Tap to log that you took your medication
- Water intake tracker â Tap every time you fill your water bottle
Vehicle
- Car mount â Tap to open navigation, enable Bluetooth, start driving playlist
- Parking saver â Tap to save your current GPS location as your parking spot
- Carpool coordination â Tap to send your ETA to carpool members
Fun & Creative
- Treasure hunt â Hide NFC tags with clues for a scavenger hunt
- Pet collar â Tag with your contact info in case your pet gets lost
- Board game helper â Tap to roll virtual dice, keep score, or start timers
- Music tags â Place near different speakers to play specific playlists
- Recipe cards â Tap to open your favorite recipes from a recipe tag on the fridge
Getting Started
- Buy NFC tags â NTAG215 tags on Amazon ($10-15 for a 25-pack)
- Download an NFC writer â NFC Write & Read Tags
- Write your first tag â start with something simple like a Wi-Fi sharing tag
- Place and enjoy â stick the tag where you'll use it
NFC tags are one of the most affordable and useful tech accessories you can buy. With a little creativity, they can simplify dozens of daily tasks.
Get NFC Write & Read Tags on Android or App Store on iPhone.