If you have lost your Monero mnemonic checksum, or if you have an older-style 24-word mnemonic, you can use this tool to recover or generate your mnemonic checksum.
This tool is provided as a service to the Monero community. No warranties are provided. This tool is not meant to be used for security-sensitive purposes. No information is transferred to any servers during use of this tool; you can review the source code and see exactly what is being done. Monero mnemonic phrases can be used to fully recover your wallet - if anyone gains access to your mnemonic phrase, they will be able to spend all of your funds. Use this tool at your own risk. Feel free to download this page to your own computer and use it offline. Note that browser plugins may be able to read data you enter on websites, including offline pages. Do not install or use any browser plugins that are not fully trusted!