NFCore - NFC Tag Reader Writer

NFCore is an NFC tag toolkit for Android. Read, write and copy your own NFC tags, organize every scan in one library, and lock a tag when it's finished.

SCAN & READ

Tap a tag to see what's on it: NDEF records, tag type, UID, ATQA, SAK, memory size and read-only status. NFCore reads NTAG213/215/216, MIFARE Ultralight, MIFARE Classic, MIFARE DESFire, ISO 14443, ISO 15693 and FeliCa tags (MIFARE Classic depends on your phone's NFC chip). Every scan is saved to your local library.

WRITE

Write text, links, phone numbers, email, SMS, locations, Wi-Fi networks, contact cards (vCard) and custom NDEF records to any writable tag. Start from a built-in template or save your own for repeat use.

COPY YOUR OWN TAGS

Back up a tag you own and write its data to a blank tag, with a read-back check after writing. Copy one tag or write many copies with batch write, straight from your saved library. Handy for a spare of your Wi-Fi tag, smart home tag or business card. Only copy tags you own. Payment cards, transit cards and other encrypted cards can't be copied.

INSPECT & DEBUG

View raw memory page by page in hex. Send commands through the built-in console, with command history, response codes and timing. Made for NFC development, debugging and learning how NFC works.

TAG LOCK

Make a tag permanently read-only so nobody can overwrite it. This can't be undone.

BATCH WRITE

Set up your records once, set a target count, and write them to as many tags as you need. A live counter shows successful and failed writes.

EMERGENCY MEDICAL PROFILE

Save your name, date of birth, blood type, allergies, medications, conditions and up to three emergency contacts, then write them to a tag on your keychain, wristband or wallet card. Anyone with an NFC phone can read it, no app needed.

TAG EMULATION

Let your phone act as a simple NFC tag with text and link records, so other NFC readers can scan your phone. A notification shows whenever emulation is on. It emulates standard NDEF tags only.

CONTACTLESS CARD INFO

See the public details of your own contactless bank card: card type, label, expiry date and a masked card number. This is the same public data any card terminal can read. Nothing is stored or sent anywhere.

LIBRARY AND EXPORT

Organize tags with folders, favorites, notes and color labels. Export your tags as JSON or CSV.

PRIVACY FIRST

Your data stays on your phone. No account, no sign-up, no cloud, no tracking, no analytics, no ads.

FREE AND PRO

Scanning and reading are free. A one-time Pro upgrade adds unlimited tags and templates, batch writing and the advanced tools.

Material You design with dynamic color and dark mode.

Questions or feedback? Visit nfcore.app/support or email support@nfcore.app.