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DICEWARE(1) User Commands DICEWARE(1)


diceware - create passphrases


diceware [OPTION]... [FILE]


diceware generates passphrases by concatenating words randomly picked from wordlists. It supports also real dice for passphrase generation.

It is based on the proposals of Arnold G. Reinhold on


positional arguments:
optional input wordlist. '-' will read from stdin. Should contain one word per line.

optional arguments:

-h, --help
show help message and exit
-n NUM, --num NUM
number of words to concatenate. Default 6
-c, --caps
Capitalize words. This is the default.
Turn off capitalization.
-s NUM, --specials NUM
Insert NUM special chars into generated word.
Separate words by DELIMITER. Empty string by default.
-r SOURCE, --randomsource SOURCE
Get randomness from this source. Possible values: realdice, system. Default: system
-w NAME, --wordlist NAME
Use words from this wordlist. Possible values: en, en_eff, en_orig, en_securedrop. Wordlists are stored in the folder displayed below. Default: en_eff
-v, --verbose
Be verbose. Use several times for increased verbosity.
output version information and exit.

Arguments related to realdice randomsource:

--dice-sides N
Number of sides of dice. Default: 6


Your personal diceware configuration file.

diceware also comes with a set of wordlists. The path where these lists are stored is showed with --help.


Create a passphrase using defaults. Outputs something like "WheelDyeHonkCanvasWitsPuck"
diceware -d "-" -n 3
Create a passphrase with three words, separated by dash ("-"). Results in something like "Wheel-Dye-Honk"
diceware --no-caps
Create a passphrase without capital words. Creates something like "wheel-dye-honk".
diceware -r realdice
Use real dice to create a passphrase. The programm will tell you what to do (roll dice and tell what numbers appear) and in the end present a passphrase.
diceware -r realdice --dice-sides 20
Use real dice, as shown above, but this time use dice with 20 faces, instead of standard, 6-sided dice.
diceware mywordlist.txt
Create a passphrase with words from file "mywordlist.txt". The file should contain one word on each line.
diceware -w en_orig -s 2
Create a passphrase with two special chars spread over the generated passphrase and containing words from wordlist "en_orig". This is one of the wordlists that come included with diceware. Creates something like: "Rutt[FanScoldLouiseT*nyThrob".


Copyright (C) 2015-2018 Uli Fouquet and contributors

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see <>.

diceware is a concept invented by Arnold G. Reinhold, Cambridge, Massachusetts USA.

The English Diceware Wordlists used with this programme are licensed by Arnold G. Reinhold (files wordlists/wordlist_en_orig.asc, wordlists/wordlist_en.txt) under the Creative Commons CC-BY 3.0 license (see

The Securedrop wordlist (file wordlists/wordlist_en_securedrop.asc) by Heartsucker is licensed under the MIT license (see

The EFF wordlist (file wordlsts/wordlist_en_eff.txt) is licensed by the Electronic Frontier Foundation under the Creative Commons CC-BY 3.0 US license (see

"Diceware" is a trademark of Arnold G Reinhold, used with permission.


Written by Uli Fouquet and contributors
December 2018 diceware 0.9.6