Amiibo Key Files ((exclusive)) Direct
Amiibo key files are the encryption "keys" required to decode and encode data stored on the Near Field Communication (NFC) chips found in Nintendo's Amiibo figurines and cards
- Never share key files – You could face legal action or get banned from communities.
- Use reputable open-source tools – TagMo, for instance, requires you to locate your own key file; it does not include one.
- Do not sell amiibo cards or binaries – Selling “100 amiibo in one” cards with pre-written data is clearly commercial infringement and has led to lawsuits.
- Keep modified amiibo offline – If you change save data, avoid using that amiibo with Nintendo’s online services or games that sync data to the cloud.
: Instead of carrying 50 bulky plastic figures to a friend's house, a user can carry a small coin-book of NFC cards. Accessibility : Some amiibos, like the Legend of Zelda
To use amiibo data (often found as files), you need specific encryption keys to "unlock" the data so apps or devices can read and write them. 1. Identify the Required Key Files The two standard files you will need are: locked-secret.bin (sometimes called unfixed-info.bin unfixed-info.bin (sometimes called locked-secret.bin Many apps now look for a single combined file often named key_retail.bin 2. Where to Get Them amiibo key files
2. Types of Key Files
| Filename | Role |
|----------|------|
| key_retail.bin | Main encryption key for amiibo data |
| key_retail_2.bin | Alternate/secondary retail key |
| key_common.bin | Common key used in crypto operations |
| unfixed-info.bin | Contains initial dynamic data needed to emulate unique amiibo behavior |
| locked-secret.bin | Used in some homebrew tools for full tag emulation |
: These keys are copyrighted property of Nintendo. While the software used to write amiibos (like TagMo or AmiIIbo) is legal, the key files themselves are not distributed with the apps. Users are generally expected to dump them from their own hardware, though they are frequently found in "the usual places" online. How They Are Used Amiibo key files are the encryption "keys" required
collections, are notoriously difficult to find or expensive on the secondhand market.
locked-secret.bin: Required to decrypt and write the secure portions of the amiibo chip. Never share key files – You could face
The key file allows homebrew software (like TagMo for Android, or amiitool on PC) to decrypt, read, and generate valid amiibo data. Without these keys, you cannot create a functioning copy of an amiibo, nor can you modify an existing one’s game data.