NFCore: NFC Reader & Writer

NFCore reads, writes and batch-encodes NFC tags. Hold your phone to a tag, see exactly what is on it, edit it and write it back, all in one flow.

READ ANY NFC TAG
• UID, chip type (NTAG213, NTAG215, NTAG216, MIFARE Ultralight and more), memory size and whether the tag is writable
• Every NDEF record decoded: links, text, Wi-Fi, contact, phone and more
• Raw bytes of every record in hex
• Every tag you scan is saved to your history

WRITE NFC TAGS
• Text, link (URL), phone number, SMS, email, location and app launch
• Wi-Fi network (Pro)
• Several records on one tag
• Read, edit and write back to the same tag without leaving the screen
• Capacity check before writing: if the content does not fit, you see how many bytes too many
• Every write is read back and compared, so "done" means verified

BATCH ENCODING
Write the same content to many tags in a row. Embed an auto-incrementing number ({001}, {002} …) or the tag's own UID in each one. Watch the live counter, get a warning if a tag was already written in this run, and finish with a run report.

TAG TOOLS
• Copy a tag's content to another tag
• Erase a tag
• Lock a tag permanently (read-only), with a double confirmation because it cannot be undone
• Password protection for NTAG21x tags

PROFILES AND HISTORY
Save content you write often as a profile and write it again with one tap. Export history and profiles as CSV or JSON (Pro). Sign in to sync your saved profiles across devices. Signing in is optional; the app works fully without an account.

SIMPLE AND EXPERT MODE
Simple mode for everyday jobs like sharing Wi-Fi or adding a link. Expert mode adds batch encoding and technical detail. Switch any time.

PRIVACY
• No analytics and no crash reporting
• Read history and tag contents stay on your device and are never uploaded
• Only the profiles you save are synced, and only if you sign in
• Delete your account from inside the app
• The free version shows a Google AdMob banner on the Library and Tools screens only, never while scanning or writing

PRO
One-time purchase or yearly subscription. Pro unlocks Wi-Fi records, unlimited profiles (free: 3), full read history (free: last 20), CSV and JSON export and profile sync, and removes ads.

REQUIREMENTS
An Android phone with NFC. Without NFC the app opens and you can look around, but you cannot read or write tags.

Recent changes:
Fixes the privacy consent prompt, which failed to load for users in Europe. Ads and the ad preferences screen now work as intended.
Adds an ad diagnostics panel under Tools, so ad problems can be identified instead of failing silently.
Stability fixes.