Identifies any crypto wallet file and inspects Bitcoin Core wallet.dat structure: encrypted or not, corrupt or readable, key count, and addresses. This file runs entirely on your machine; the whole point of downloading it is to disconnect from the internet before you use it on a real wallet file.
This file contains private keys. Here is exactly what this tool does and does not do. It reads the file locally, in your browser, to identify it and (for a Bitcoin Core wallet.dat) report its structure. It never transmits the file anywhere, never stores it, and never shows, exports, copies, or logs any private key, not for an unencrypted wallet, not behind a toggle. It reports structure and public data only: format, encryption status, key counts, and addresses. It never attempts decryption or password guessing, there is no password field. It never writes to, renames, or modifies your file.
I could show you the private keys. I deliberately don't: pulling spendable keys out of a wallet file is professional recovery work with real consequences if it goes wrong (screenshots, clipboard managers, shoulder surfing, malware), and that isn't something a web page should hand out.
Given that this is live money, the safest way to run this is exactly how you're using it now: offline, disconnected from the internet. It's the recommended path for this tool, not just an option.
Nothing here is uploaded. Verify it yourself: open your browser's network tab before dropping a file, and confirm nothing fires.