LostBitcoinsFinder (For educational purposes only)

Find the private keys of lost Bitcoin — for educational purposes only

This repository contains a Windows command-line executable for a brute-force-style Bitcoin key finder. It is intended for educational, testing and research purposes only, and should only be used on wallets/keys that you personally control. Do not run this tool against addresses you do not own or against any third-party wallet. Misuse may be illegal.

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What this program does

LostBitcoinsFinder searching keyspaces by trying many key/address combinations. It is intended to demonstrate multi-core brute-force behaviour, logging, progress visualization, and QR-code generation — for educational purposes only.

When a match is found:

• A QR code image (screenshot) is generated showing the matched private key and displayed.
• The private key is written to found.txt (screenshot of file write behavior).

Important: Under no circumstances should you use it to target real wallets you do not control.

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Safe usage notes

• Use this project for education, testing, and defensive research only.

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Build / Run (example)

The executable is LostBitcoinsFinder.exe in these examples.

Normal mode

LostBitcoinsFinder.exe — uses all CPU cores.
During normal operation the program prints the character ° each time 10,000,000 combinations have been tried (this is the normal progress marker).

Parameters

• LostBitcoinsFinder.exe 16
  Use 16 CPU cores for the search (if available).

• LostBitcoinsFinder.exe v
  Visualize the process: prints private keys currently being tested (visualization mode).

• LostBitcoinsFinder.exe 32 v
  Use 32 cores and show visualization output.

You may pass either the numeric core count, the v flag, or both (order-insensitive).

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Output behavior

• During normal operation the program prints progress markers (°) every 10,000,000 combinations tried.
• In visualization mode (v) the program prints private keys/addresses it is testing.
• On a "find":
  • A QR code image (screenshot) is created and displayed.
  • The found private key is appended to found.txt.
  • The console also prints the private key beneath the QR preview.

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Example output

• Screenshot_1.png
• Screenshot_2.png

Windows says it's a virus. It's not!

• This is not a virus. It is also not a trojan!
• Microsoft is not a fan of this brute-force technology.