Generators — UUID, Password, Passphrase, Nickname, Codes, Dummy Data, Dice and Random Picker
Generate UUIDs (v4 and v7), strong passwords, diceware-style passphrases, nicknames for games and communities, coupon and license codes, dummy profiles for UI testing (name, email, phone, address), random numbers, dice rolls and coin flips, placeholder text for mockups (Korean and Latin lorem ipsum), and random draws or team splits — all on one page. Every random value comes from the browser's cryptographic random generator (Web Crypto), and nothing is sent to a server or stored.
UUID generator
Creates version 4 (random) and version 7 (time-ordered) UUIDs using Web Crypto secure randomness.
Version
Format
Count
Password generator
Pick a length and character types to create a random password. Generated in your browser only — never stored or sent.
Length16 chars
Character types
Options
Count
—
Passphrase generator
Strings random words together, diceware-style, for a phrase that's easy to remember yet secure.
Language
Words4
Separator
Options
Count
Nickname generator
Pairs an adjective with a noun for nicknames ready to use in games and communities.
Style
Options
Count
Code & coupon generator
Creates grouped random codes for coupons, serials and invites, with no duplicates within a batch.
Character types
Format
Count
Dummy profile generator
Creates fake personal details for testing screens and forms. They are random syllable combinations unrelated to real people and can't be used for identity checks or sign-ups.
Fields
Age range
~yrs
Count
All values are generated randomly in this browser and never sent to a server.
Numbers & dice
Random numbers in a range, dice rolls and coin flips in one place.
Mode
Range
~
Options
Count
Number of dice2
Sides
Number of coins1
Dummy text (lorem ipsum)
Generates meaningless body copy for design mockups. Korean text differs from Latin in character width and line breaking, so Korean layouts need Korean filler to show realistic length.
Language
Unit
Count
Wrap
Draw lots & split teams
Enter participants to shuffle the order, pick winners or split into teams.
ParticipantsOne per line, or comma-separated
Mode
Winners
Teams
FAQ
Is it truly random? Why do values change every time?
Every value on this page comes from the browser's built-in cryptographic random API (Web Crypto, crypto.getRandomValues) rather than the usual Math.random(), and modulo bias is removed with rejection sampling — good enough for values that must be unpredictable, like passwords and UUIDs.
Are generated values stored or sent to a server?
No. Everything is computed inside this browser and no value is ever sent to a server. For convenience, only the last tab you opened is remembered in this browser; generated passwords, codes and profiles are not stored.
Are dummy profiles real people's details?
No. Names, phone numbers, emails and addresses are
fake data built from random combinations of common surnames, syllables and place-name fragments, unrelated to any real person. Use them only for testing screens and forms — never for identity checks or real sign-ups.
What does "entropy (bits)" mean in the password generator?
It is the number of guesses a brute-force attacker would need, on a log scale. Each extra bit doubles the possibilities. Generally, 60 bits or more is considered safe even against offline brute-force attacks. It rises as you add length or character types.
Why a passphrase instead of a password?
At the same entropy, something like ABc7#kQ2 is harder to remember and type by hand than river-fox-42-stamp. More words means more security — use five or more for important accounts.