You can enter an existing BIP39 mnemonic, or generate a new random one. Typing your own twelve words will probably not work how you expect, since the words require a particular structure (the last word is a checksum)
You can enter an existing BIP39 mnemonic, or generate a new random one. Typing your own twelve words will probably not work how you expect, since the words require a particular structure (the last word contains a checksum).
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- a random
+ Generate a random mnemonic:
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- word mnemonic, or enter your own below.
+ words, or enter your own below.
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+ Mnemonics with less than 12 words have low entropy and may be guessed by an attacker.
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- Entropy is an advanced feature.
- Your mnemonic may be insecure if this feature is used incorrectly.
+ Entropy is an advanced feature. Your mnemonic may be insecure if this feature is used incorrectly.Read more
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+ The mnemonic will appear more secure than it really is.
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- Use path m/0'/0' with hardened addresses.
- For more info see the Bitcoin Core BIP32 implementation
+ Use path m/44'/0'/0'.
+ Only enter the xpub extended key into block explorer search fields, never the xprv key.
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BIP49 Derivation scheme for P2WPKH-nested-in-P2SH based accounts
- Use private keys at
- brainwallet.org,
- but be careful - it can be easy to make mistakes if you
- don't know what you're doing
+ Read more at the
+ official BIP49 spec
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- Entropy values must be sourced from a
- strong source of randomness.
- This means flipping a fair coin, rolling a fair dice, noise measurements etc. Do NOT use
- phrases from books, lyrics from songs, your birthday or steet address, keyboard mashing, or anything you think
- is random, because chances are overwhelming that it isn't random enough for the needs of this tool.
+ Entropy values should not include the BIP39 checksum. This is automatically added by the tool.
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+ Entropy values must be sourced from a
+ strong source of randomness.
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+ This means flipping a fair coin, rolling a fair dice, noise measurements etc.
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+ Do NOT use phrases from books, lyrics from songs, your birthday or street address,
+ keyboard mashing, or anything you think is random, because chances are overwhelming it isn't
+ random enough for the needs of this tool.
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+ Do not store entropy.
- The random mnemonic generator on this page uses a
- cryptographically secure random number generator,
- and can generally be trusted more than your own intuition about randomness.
- If cryptographic randomness isn't available in your browser, this page will show a warning and will not generate
- random mnemonics.
+ Storing entropy (such as keeping a deck of cards in a specific shuffled order) is unreliable compared to storing a mnemonic.
+ Instead of storing entropy, store the mnemonic generated from the entropy.
+ Steganography may be beneficial when storing the mnemonic.
- You are not a good source of entropy.
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+ The random mnemonic generator on this page uses a
+ cryptographically secure random number generator.
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+ The built in random generator can generally be trusted more than your own intuition about randomness.
+ If cryptographic randomness isn't available in your browser, this page will show a warning and the generate button will not work.
+ In that case you might choose to use your own source of entropy.
+
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.
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Alternative Tools
+
This tool is interoperable with any BIP39 wallet.
+
Some similar tools to this one (ie not consumer wallets) are