NFC Reader & Writer: Tag Tools

Reader turns your Android phone — or an ACR122U USB reader — into a complete NFC toolkit. Read any NFC tag down to the last byte, write links, Wi-Fi and contacts, encode numbered batches, check whether a chip is a genuine NXP part, and read contactless EMV bank cards.

READ ANY NFC TAG
• Identifies NTAG213/215/216, MIFARE Ultralight, MIFARE Classic, DESFire, ISO 15693 (NFC-V) and FeliCa tags
• Shows what's stored on the tag — links, text, Wi-Fi, contacts — the way a phone will see it
• UID, ATQA/SAK, memory size, lock and password settings
• Full memory map, page by page, for NTAG and Ultralight
• MIFARE Classic sectors read with factory keys, or with your own key
• Export the full report

WRITE TAGS
• URL, Wi-Fi network, contact (vCard), text, app launch, Smart Poster or raw NDEF
• A live preview shows exactly what a phone will get, and whether it fits NTAG213, 215 or 216
• Optional permanent read-only lock

NUMBERED BATCHES
• The same content on many tags, each with its own number — table/1, table/2, table/3…
• A tag already written in the batch is skipped, so numbers never repeat

VERIFY AUTHENTICITY
• Checks NXP's ECC originality signature on NTAG21x and MIFARE Ultralight EV1 tags to catch counterfeit chips
• Clear verdicts: genuine, likely counterfeit, or can't be checked

READ EMV BANK CARDS — FREE
• Card brand and expiry from contactless Visa, Mastercard, Amex and more; the card number is masked by default
• With the phone's NFC or an ACR122U USB reader

APDU CONSOLE — FREE
• Send raw APDUs over an ACR122U, run saved read-only scripts, decode status words (ISO 7816 and DESFire) and ATRs

READER PRO
Reading and writing tags, batches, authenticity checks and export are part of Reader PRO. Try every tool free for 3 days, then choose monthly, yearly or a one-time lifetime purchase. Cancel anytime in Google Play.

PRIVATE BY DESIGN
• No account, no ads, no tracking
• Card numbers are masked by default and never stored
• Everything stays on your phone

GOOD TO KNOW
• Reading MIFARE Classic needs a phone with an NXP NFC chip, or an ACR122U
• Reader shows only data a card makes public; it can't make payments or copy bank cards
• Use it with tags and cards you own or are allowed to test

Recent changes:
Reader 2.1 — your phone becomes the tag
• Emulate a saved tag: hold your phone to a reader or another phone and it hands over the tag's content — no blank tag needed
• Save tags straight from the Write screen, not only the Inspector
• Reading and saving tags stay free; writing and emulating are Reader PRO