MIFARE Classic is an older technology (13.56 MHz) now considered cryptographically broken

The official page for MIFARE Classic Tool is available on the Google Play Store. While the latest version might be newer (4.3.1 as of 2026), historical versions can sometimes be obtained through third-party APK repositories, though with caution.

MCT itself ; it does not implement brute-force attacks due to protocol speed limitations. However, when paired with other specialized software like mfoc or mfcuk run on a PC with a reader like the ACR122U, it becomes a critical part of the workflow: once keys are extracted by external tools, they can be added to an MCT key file, which then allows MCT to read, edit, and clone the tag.

The user holds the card against the phone's NFC sweet spot while the app tests keys against each sector.

Choose the and Dump File (previously saved data) you want to write. Choose which sectors to write to. Place the tag on the phone.

By mapping sector keys against the card, the tool performs a comprehensive read function. It displays the raw hexadecimal data side-by-side with an ASCII translation, making it easy to spot plaintext strings, names, or numerical balances. 3. Precision Writing and Cloning

Mifare Classic Tool 2.3.1 -

MIFARE Classic is an older technology (13.56 MHz) now considered cryptographically broken

The user holds the card against the phone's NFC sweet spot while the app tests keys against each sector. However, when paired with other specialized software like

Choose the and Dump File (previously saved data) you want to write. Choose which sectors to write to. Place the tag on the phone.