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<title>BIP39 - Mnemonic Code</title>
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<meta content="Mnemonic code for generating deterministic keys" name="description"/>
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<meta content="bitcoin mnemonic converter" name="description" />
<meta content="Ian Coleman" name="author" />
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word-break: keep-all;
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.entropy-container .binary {
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</style>
</head>
<body>
<div class="container">
<h1 class="text-center">Mnemonic Code Converter</h1>
<hr>
<div class="row">
<div class="col-md-12">
<h2>Mnemonic</h2>
<form class="form-horizontal" role="form">
<div class="form-group">
<div class="col-sm-2"></div>
<div class="col-sm-10">
<p>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)</p>
<p>For more info see the <a href="https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki" target="_blank">BIP39 spec</a></p>
</div>
</div>
<div class="form-group generate-container">
<label class="col-sm-2 control-label"></label>
<div class="col-sm-10">
<div class="form-inline">
<div class="input-group-inline">
<button class="btn generate">Generate</button>
<span>a random</span>
<select id="strength" class="strength form-control">
<option value="3">3</option>
<option value="6">6</option>
<option value="9">9</option>
<option value="12">12</option>
<option value="15" selected>15</option>
<option value="18">18</option>
<option value="21">21</option>
<option value="24">24</option>
</select>
word mnemonic, or enter your own below.
</div>
</div>
</div>
</div>
<div class="entropy-container hidden">
<div class="form-group text-danger">
<label class="col-sm-2 control-label">Warning</label>
<div class="col-sm-10 form-control-static">
Entropy is an advanced feature.
Your mnemonic may be insecure if this feature is used incorrectly.
<a href="#entropy-notes">Read more</a>
</div>
</div>
<div class="form-group">
<label for="entropy" class="col-sm-2 control-label">Entropy</label>
<div class="col-sm-7">
<textarea id="entropy" rows="2" class="entropy form-control" placeholder="Accepts binary, base 6, 6-sided dice, base 10, hexadecimal, cards"></textarea>
<div class="row">
<label class="col-sm-3 control-label">Strength</label>
<div class="strength col-sm-3 form-control-static"></div>
<label class="col-sm-3 control-label">Event Count</label>
<div class="event-count col-sm-3 form-control-static"></div>
</div>
<div class="row">
<label class="col-sm-3 control-label">Entropy Type</label>
<div class="type col-sm-3 form-control-static"></div>
<label class="col-sm-3 control-label">Bits Per Event</label>
<div class="bits-per-event col-sm-3 form-control-static"></div>
</div>
<div class="row">
<label class="col-sm-3 control-label">Word Count</label>
<div class="word-count col-sm-3 form-control-static"></div>
<label class="col-sm-3 control-label">Total Bits</label>
<div class="bits col-sm-3 form-control-static"></div>
</div>
<label class="col-sm-3 control-label">Filtered Entropy</label>
<div class="filtered col-sm-9 form-control-static"></div>
<label class="col-sm-3 control-label">Raw Binary</label>
<div class="binary col-sm-9 form-control-static"></div>
<label class="col-sm-3 control-label">Mnemonic Length</label>
<div class="col-sm-9">
<select class="mnemonic-length form-control">
<option value="raw">From entropy length (3 words per 32 bits)</option>
<option value="12">12 Words</option>
<option value="15" selected>15 Words</option>
<option value="18">18 Words</option>
<option value="21">21 Words</option>
<option value="24">24 Words</option>
</select>
</div>
</div>
<div class="col-sm-3">
<p>Valid entropy values include:</p>
<ul>
<li><strong>Binary</strong> [0-1]<br>101010011</li>
<li><strong>Base 6</strong> [0-5]<br>123434014</li>
<li><strong>Dice</strong> [1-6]<br>62535634</li>
<li><strong>Base 10</strong> [0-9]<br>90834528</li>
<li><strong>Hex</strong> [0-9A-F]<br>4187a8bfd9</li>
<li><strong>Card</strong> [A2-9TJQK][CDHS]<br>ahqs9dtc</li>
</ul>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-2"></div>
<div class="col-sm-10 checkbox">
<label>
<input type="checkbox" class="use-entropy">
Supply my own source of entropy
</label>
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label"></label>
<div class="col-sm-10 languages">
<a href="#english">English</a>
<a href="#japanese" title="Japanese">日本語</a>
<a href="#spanish" title="Spanish">Español</a>
<a href="#chinese_simplified" title="Chinese (Simplified)">中文(简体)</a>
<a href="#chinese_traditional" title="Chinese (Traditional)">中文(繁體)</a>
<a href="#french" title="French">Français</a>
<a href="#italian" title="Italian">Italiano</a>
</div>
</div>
<div class="form-group">
<label for="phrase" class="col-sm-2 control-label">BIP39 Mnemonic</label>
<div class="col-sm-10">
<textarea id="phrase" class="phrase form-control"></textarea>
</div>
</div>
<div class="form-group">
<label for="passphrase" class="col-sm-2 control-label">BIP39 Passphrase (optional)</label>
<div class="col-sm-10">
<textarea id="passphrase" class="passphrase form-control"></textarea>
</div>
</div>
<div class="form-group">
<label for="seed" class="col-sm-2 control-label">BIP39 Seed</label>
<div class="col-sm-10">
<textarea id="seed" class="seed form-control" readonly="readonly"></textarea>
</div>
</div>
<div class="form-group">
<label for="network-phrase" class="col-sm-2 control-label">Coin</label>
<div class="col-sm-10">
<select id="network-phrase" class="network form-control">
<!-- populated by javascript -->
</select>
</div>
</div>
<div class="form-group">
<label for="root-key" class="col-sm-2 control-label">BIP32 Root Key</label>
<div class="col-sm-10">
<textarea id="root-key" class="root-key form-control"></textarea>
</div>
</div>
</form>
</div>
</div>
<hr>
<div class="row">
<div class="col-md-12">
<h2>Derivation Path</h2>
<ul class="derivation-type nav nav-tabs" role="tablist">
<li id="bip44-tab" class="active">
<a href="#bip44" role="tab" data-toggle="tab">BIP44</a>
</li>
<li id="bip32-tab">
<a href="#bip32" role="tab" data-toggle="tab">BIP32</a>
</li>
</ul>
<div class="derivation-type tab-content">
<div id="bip44" class="tab-pane active">
<form class="form-horizontal" role="form">
<br>
<div class="col-sm-2"></div>
<div class="col-sm-10">
<p>For more info see the <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki" target="_blank">BIP44 spec</a></p>
</div>
<div class="form-group">
<label for="purpose" class="col-sm-2 control-label">
<a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#purpose" target="_blank">Purpose</a>
</label>
<div class="col-sm-10">
<input id="purpose" type="text" class="purpose form-control" value="44">
</div>
</div>
<div class="form-group">
<label for="coin" class="col-sm-2 control-label">
<a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#registered-coin-types" target="_blank">Coin</a>
</label>
<div class="col-sm-10">
<input id="coin" type="text" class="coin form-control" value="0">
</div>
</div>
<div class="form-group">
<label for="account" class="col-sm-2 control-label">
<a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#account" target="_blank">Account</a>
</label>
<div class="col-sm-10">
<input id="account" type="text" class="account form-control" value="0">
</div>
</div>
<div class="form-group">
<label for="change" class="col-sm-2 control-label">
<a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#change" target="_blank">External / Internal</a>
</label>
<div class="col-sm-10">
<input id="change" type="text" class="change form-control" value="0">
</div>
</div>
<div class="form-group">
<label for="bip44-path" class="col-sm-2 control-label">BIP32 Derivation Path</label>
<div class="col-sm-10">
<input id="bip44-path" type="text" class="path form-control" value="m/44'/0'/0'/0" readonly="readonly">
</div>
</div>
</form>
</div>
<div id="bip32" class="tab-pane">
<form class="form-horizontal" role="form">
<br>
<div class="col-sm-2"></div>
<div class="col-sm-10">
<p>For more info see the <a href="https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki" target="_blank">BIP32 spec</a></p>
</div>
<div class="form-group">
<label for="bip32-path" class="col-sm-2 control-label">BIP32 Derivation Path</label>
<div class="col-sm-10">
<input id="bip32-path" type="text" class="path form-control" value="m/0">
</div>
</div>
<div class="form-group">
<div class="col-sm-2"></div>
<label class="col-sm-10">
<input class="hardened-addresses" type="checkbox">
Use hardened addresses
</label>
</div>
<div class="form-group">
<label class="col-sm-2 control-label">Hive Wallet</label>
<div class="col-sm-10">
<p class="form-control no-border">
Use path <code>m/0'/0</code>.
For more info see the <a href="https://www.hivewallet.com/" target="_blank">Hive Wallet homepage</a>
</p>
</div>
</div>
<div class="form-group">
<label for="mycelium-path" class="col-sm-2 control-label">Mycelium Wallet</label>
<div class="col-sm-10">
<p class="form-control no-border">
Use path <code>m/44'/0'/0'/0</code>.
For more info see the <a href="http://www.mycelium.com/" target="_blank">Mycelium Wallet homepage</a>
</p>
</div>
</div>
<div class="form-group">
<label for="core-path" class="col-sm-2 control-label">Bitcoin Core</label>
<div class="col-sm-10">
<p class="form-control no-border">
Use path <code>m/0'/0'</code> with hardened addresses.
For more info see the <a href="https://github.com/bitcoin/bitcoin/pull/8035" target="_blank">Bitcoin Core BIP32 implementation</a>
</p>
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label">Block Explorers</label>
<div class="col-sm-10">
<p class="form-control no-border">
Use path <code>m/44'/0'/0'</code>.
Only enter the <code>xpub</code> extended key into block explorer search fields, never the <code>xpriv</code> key.
</p>
</div>
</div>
</form>
</div>
</div>
<form class="form-horizontal" role="form">
<div class="form-group">
<label for="extended-priv-key" class="col-sm-2 control-label">BIP32 Extended Key</label>
<div class="col-sm-10">
<textarea id="extended-priv-key" class="extended-priv-key form-control" readonly="readonly"></textarea>
</div>
</div>
<div class="form-group">
<label for="extended-pub-key" class="col-sm-2 control-label">BIP32 Extended Key (addresses only)</label>
<div class="col-sm-10">
<textarea id="extended-pub-key" class="extended-pub-key form-control" readonly="readonly"></textarea>
</div>
</div>
</form>
</div>
</div>
<hr>
<div class="row">
<div class="col-md-12">
<h2>Derived Addresses</h2>
<p>Note these addreses are derived from the <strong>BIP32 Extended Key</strong></p>
<table class="table table-striped">
<thead>
<th>
<div class="input-group">
Path
<button class="index-toggle">Toggle</button>
</div>
</th>
<th>
<div class="input-group">
Address
<button class="address-toggle">Toggle</button>
</div>
</th>
<th>
<div class="input-group">
Public Key
<button class="public-key-toggle">Toggle</button>
</div>
</th>
<th>
<div class="input-group">
Private Key
<button class="private-key-toggle">Toggle</button>
</div>
</th>
</thead>
<tbody class="addresses monospace">
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
</tbody>
</table>
</div>
</div>
<span>Show next </button>
<input type="number" class="rows-to-add" value="20">
<button class="more">Show</button>
<hr>
<div class="row">
<div class="col-md-12">
<h2>More info</h2>
<h3>BIP39 <span class="small">Mnemonic code for generating deterministic keys</span></h3>
<p>
Read more at the
<a href="https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki">official BIP39 spec</a>
</p>
<h3>BIP32 <span class="small">Hierarchical Deterministic Wallets</span></h3>
<p>
Read more at the
<a href="https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki" target="_blank">official BIP32 spec</a>
and see the demo at
<a href="http://bip32.org/" target="_blank">bip32.org</a>
</p>
<h3>BIP44 <span class="small">Multi-Account Hierarchy for Deterministic Wallets</span></h3>
<p>
Read more at the
<a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki" target="_blank">official BIP44 spec</a>
</p>
<h3>Private Keys</h3>
<p>
Use private keys at
<a href="https://web.archive.org/web/20150707020924/https://brainwallet.org/" target="_blank">brainwallet.org</a>,
but be careful - it can be easy to make mistakes if you
don't know what you're doing
</p>
<h3 id="entropy-notes">Entropy</h3>
<p>
Entropy values must be sourced from a
<a href="https://en.wikipedia.org/wiki/Random_number_generation" target="_blank">strong source of randomness</a>.
This means flipping a fair coin, rolling a fair dice, noise measurements etc. Do <strong>NOT</strong> use
phrases from books, lyrics from songs, your birthday or steet address, keyboard mashing, or anything you <i>think</i>
is random, because chances are <em>overwhelming</em> that it isn't random enough for the needs of this tool.
</p>
<p>
The random mnemonic generator on this page uses a
<a href="https://developer.mozilla.org/en-US/docs/Web/API/RandomSource/getRandomValues" target="_blank">cryptographically secure random number generator</a>,
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 <i>will not generate
random mnemonics</i>.
</p>
<p>
<a href="https://bitcointalk.org/index.php?topic=311000.msg3345309#msg3345309" target="_blank">You are not a good source of entropy.</a>
</p>
</div>
</div>
<hr>
<div class="row">
<div class="col-md-12">
<h2>Offline Usage</h2>
<p>
You can use this tool without having to be online.
</p>
<p>
In your browser, select file save-as, and save this page
as a file.
</p>
<p>
Double-click that file to open it in a browser
on any offline computer.
</p>
<p>
Alternatively, download it from
<a href="https://github.com/iancoleman/bip39">
https://github.com/iancoleman/bip39
</a>
</div>
</div>
<hr>
<div class="row">
<div class="col-md-12">
<h2>This project is 100% open-source code</h2>
<p>
<span>Get the source code at - </span>
<a href="https://github.com/iancoleman/bip39" target="_blank">
https://github.com/iancoleman/bip39
</a>
</p>
<h3>Libraries</h3>
<p>
<span>BitcoinJS - </span>
<a href="https://github.com/bitcoinjs/bitcoinjs-lib" target="_blank">
https://github.com/bitcoinjs/bitcoinjs-lib
</a>
</p>
<p>
<span>jsBIP39 - </span>
<a href="https://github.com/iancoleman/jsbip39" target="_blank">
https://github.com/iancoleman/jsbip39
</a>
</p>
<p>
<span>sjcl - </span>
<a href="https://github.com/bitwiseshiftleft/sjcl" target="_blank">
https://github.com/bitwiseshiftleft/sjcl
</a>
</p>
<p>
<span>jQuery - </span>
<a href="https://jquery.com/" target="_blank">
https://jquery.com/
</a>
</p>
<p>
<span>Twitter Bootstrap - </span>
<a href="http://getbootstrap.com/" target="_blank">
http://getbootstrap.com/
</a>
</p>
</div>
</div>
</div>
<div class="feedback-container">
<div class="feedback">Loading...</div>
</div>
<script type="text/template" id="address-row-template">
<tr>
<td class="index"><span></span></td>
<td class="address"><span></span></td>
<td class="pubkey"><span></span></td>
<td class="privkey"><span></span></td>
</tr>
</script>
<script src="js/jquery.min.js"></script>
<script src="js/bootstrap.min.js"></script>
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</body>
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