NFC Programming Guide

Step-by-Step Guide: How to Program Your NFC Keychain

  1. Download the App
    • iPhone: Open the App Store, search for “NFC Tools” (by wakdev), and install it.
    • Android: Open the Google Play Store, search for “NFC Tools” (by wakdev), and install it.
      The app is free and works almost identically on both platforms.
  2. Prepare Your Link or Info
    Decide what you want the keychain to open when tapped.
    Best and easiest choice: Use a Linktree (or similar like bio.site).
    • Go to linktree.com (free plan works great).
    • Add all your important links: Instagram, TikTok, website, phone number, email, booking calendar, etc.
    • Copy your Linktree URL (example: https://linktr.ee/yourname).
  3. Why Linktree is smart:
    You can add, remove, or update links anytime on your Linktree dashboard. The keychain keeps the same URL forever, so you never need to reprogram it.
  4. Write to the Keychain (Works the same on iPhone & Android)
    • Open the NFC Tools app.
    • Tap Write (usually at the bottom or main menu).
    • Tap Add a record (or “+ Add record”).
    • Choose URL or URL / URI (this is the most reliable option for everyone).
    • Paste your Linktree URL (or any other link).
    • Tap Validate, OK, or Save.
    • Tap Write (or “Write / X Bytes”).
    • Hold the back of your phone directly against the NFC keychain (usually near the camera area on iPhone, or the center/back on most Android phones).
    • Keep it steady until the app says “Write successful” or shows a confirmation.
  5. That’s it — usually takes under 30 seconds once you start.
  6. Test It
    Have a friend tap their phone (iPhone or Android) on the keychain. It should open your Linktree or chosen page right away.
    No extra app is needed on their phone.

Tips for Success:

  • Make sure NFC is turned on (it usually is by default on modern phones).
  • Hold the phone very close and still — don’t move until you see the success message.
  • You can rewrite the keychain later if needed.
  • Always choose URL for the best compatibility with both iPhone and Android.

Ideas for What to Put on Your NFC Keychain

Here are useful options (Linktree is the most flexible):

  • Linktree page — One link that holds all your socials, contact info, website, booking calendar, etc. Update anytime without reprogramming.
  • Your personal website or portfolio
  • Instagram, TikTok, or LinkedIn profile
  • Digital business card (name, phone, email)
  • Booking or appointment link (Calendly, etc.)
  • Online store, menu, or shop
  • Google review link (to collect more reviews)
  • Resume or professional profile
  • Special offer or discount page
  • Wi-Fi password (handy for guests at home or your business)
  • Aftercare instructions, service menu, or portfolio (great for creatives)

Pro Recommendation:
Start with a Linktree. It keeps everything organized in one place and lets you change the content later — even after you’ve shared the keychain with others.

This works the same way for most people and takes less than 2 minutes once you try it. The NFC keychain is durable and works with almost all modern smartphones.