Seed Savior: Mnemonic Phrase Recovery Tool

v0.1


This tool is meant to help users with recovring a slightly incorrect Bitcoin and Ethereum mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived adresses in various formats. If a word is wrong, the tool will try to suggest the closest option. If a word is missing or unknown, please type "?" instead and the tool will find all relevant options.

Enter your mnemonic

example (see also the demo section below): enter a 12 or 24 words seed phrase: "phrase brief ceiling dream rack install fault insane panic surround glory ? library brother hill sauce access child notice picnic dinner panda purity poem"

The tool will suggest several options for the missing word and the relevant one will be "asset", with the following Ethereum address, listed in the "BIP44 ETH Address" column "0x2dfF20b40504f99c6314ac30e8DF5c02dd8058e7"

Recovered Word  
BIP44 BTC Address  
BIP49 BTC Address  
BIP84 BTC Address  
BIP44 ETH Address  

License

Please refer to the software license for more detail.

The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.


Demo

In this demo we enter "phrase brief ceiling dream rack install fault insane panic surround glory ? library brother hill sauce access child notice picnic dinner panda purity poem"

The tool suggests several options for the missing word and the relevant one will be "asset". We can verify that by clicking on the link of the dervied Ethereum address ("0x2dfF20b40504f99c6314ac30e8DF5c02dd8058e7" listed in the "BIP44 ETH Address" column) and checking the address has transaction history.

Demo

Offline Usage

You can use this tool without having to be online.

In your browser, select file save-as, and save this page as a file.

Double-click that file to open it in a browser on any offline computer.

Alternatively, download the file from the repository - https://github.com/KZen-networks/mnemonic-recovery/


This project is 100% open-source code

Get the source code from the repository - https://github.com/KZen-networks/mnemonic-recovery

The project is based on Ian Coleman's Bip39 project. Get Bip39's source code from the repository - https://github.com/iancoleman/bip39

Libraries

BitcoinJS - https://github.com/bitcoinjs/bitcoinjs-lib

jsBIP39 - https://github.com/iancoleman/jsbip39

sjcl - https://github.com/bitwiseshiftleft/sjcl

jQuery - https://jquery.com/

Twitter Bootstrap - http://getbootstrap.com/