Password Generator with Chinese and Korean Characters
Five strong random passwords at a time — letters, numbers and injection-safe symbols, with optional Chinese characters (汉字) and Korean Hangul (한글). Generated in your browser, never sent to us.
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🔒 Generated locally with the Web Crypto API. Nothing is sent to our server, stored or logged.
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About This Chinese and Korean Password Generator
Most password generators stop at the Latin alphabet. This one is built for teams that launch websites, apps and marketing accounts in China and Korea. Alongside the usual letters, numbers and symbols, it can mix in the 100 most common Simplified Chinese characters (汉字) and the 100 most common Korean Hangul syllables (한글) — small, well-supported character sets that keep the script light and avoid rare characters that some fonts cannot display.
Every click gives you five passwords to choose from, each with its own copy button, an estimated strength in bits, and — when Chinese or Korean characters are included — the UTF-8 byte length. That last number matters more than most people expect, as the next section explains.
Why Test Logins with Chinese and Korean Passwords?
Your users in China and Korea type through an input method editor (IME), and that is where login systems quietly fail. A website can display Chinese content perfectly and still break the moment a Chinese or Korean string reaches the password field. Typical problems we see on Chinese-language sites:
- Byte limits instead of character limits. A Chinese character or Hangul syllable takes 3 bytes in UTF-8. The common bcrypt hash only reads the first 72 bytes — just 24 Chinese characters — and silently ignores the rest.
- Mixed encodings. A form submitted as UTF-8 but checked against a GBK or Latin-1 database produces a different string at registration and at login. The symptom is a password that "worked yesterday".
- Fullwidth characters. With a Chinese IME active, users can type fullwidth letters and digits (Ａ, １) that look identical but are different code points from A and 1.
- Unicode normalization. NIST SP 800-63B recommends accepting Unicode in passwords and normalizing it before hashing. Systems that skip this treat visually identical strings as different passwords.
Generate a few passwords with Chinese or Korean characters, then run them through registration, login, password reset and any account export on your staging site. If every step accepts the same password, your site handles Unicode correctly.
Which Special Characters Are Included — and Why
The symbol set is deliberately limited to 14 characters that rarely cause trouble in URLs, config files, CSV exports or poorly escaped code:
- !
- #
- %
- *
- +
- -
- .
- :
- =
- ?
- @
- ^
- _
- ~
Left out are characters that break things when an application doesn't escape input properly — quotes can end a SQL or JSON string, angle brackets and ampersands open the door to HTML injection (XSS), commas and semicolons split CSV and SQL, and backslash, dollar sign, backtick and pipe have special meaning in shells and regular expressions:
- "
- '
- `
- ,
- ;
- <
- >
- &
- \
- /
- |
- $
- {
- }
- (
- )
- [
- ]
A well-built system should accept any character, so this is about portability rather than strength. The cost is small: with letters, digits and these symbols, each character still carries about 6.2 bits of entropy.
How to Use This Password Generator
- Set the length — drag the slider, type a number between 6 and 64, or pick a preset.
- Choose the character types — letters, numbers and safe symbols are on by default; add Chinese characters or Korean Hangul if you need them.
- Pick from five passwords — new passwords appear as soon as you change a setting. Click "Generate 5 new passwords" for another batch.
- Copy and save — use the Copy button next to the password you like and store it straight in your password manager.
"At least one of each selected type" makes sure every password meets typical complexity rules. "Exclude look-alikes" removes characters that are easy to misread when a password has to be typed from a screen or a printout.
Securing Your China Marketing Accounts
A Chinese market entry quickly adds a stack of new logins: Baidu Search Resource Platform, Baidu Tongji, Baidu ads, a WeChat Official Account, Weibo, Douyin, Xiaohongshu. Each one is a business asset. These steps keep them under your control as staff, agencies and partners change.
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Register accounts to the company, not a person
Chinese platforms usually tie an account to a phone number, and sometimes to a company verification. Use a company-owned number and company documents, so access doesn't leave with an employee or a former agency.
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Know who holds the admin role
On a WeChat Official Account, for example, the administrator confirms logins and key changes by scanning a QR code with their own WeChat. Record who that is, and plan a handover before people leave.
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Give each person their own access
Many Chinese platforms let you add operators, sub-accounts or viewer roles. Use them instead of sharing one master login with your team and your agency — it is easier to audit and to revoke.
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Use a unique, ASCII-only password per platform
Most Chinese consumer platforms only accept letters, digits and symbols. Generate 16 or more characters per account with the tool above, with the Chinese and Korean options switched off.
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Share credentials through a password manager
Not in a WeChat chat, an email or a spreadsheet. If a password has been shared in plain text, change it once the handover is done.
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Test your own login with Chinese input
Before launch, register and log in on staging with Chinese-character and fullwidth passwords, and check that names and addresses in Chinese survive the signup form. Fullwidth / halfwidth converter →
From onboarding client accounts for Baidu SEO, Chinese PPC and social media campaigns since 2012, and the research behind our Baidu ranking factors studies and the book SEO for China.
Frequently Asked Questions
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Technically yes, if the system stores and hashes passwords as UTF-8 from end to end. Many systems do not: they reject non-ASCII input, corrupt it, or cut it off. Many consumer platforms in China and Korea also only accept letters, digits and symbols. Test a Chinese-character password on a test account first, and remember you need a Chinese input method (IME) to type it on every device you log in from.
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Security comes from randomness and pool size, not from the script. Each character here is drawn from a pool of 100 Chinese characters or 100 Hangul syllables, which is about 6.6 bits per character — roughly the same as one random character from letters, digits and symbols. Combining all six sets gives a pool of 276 characters, about 8.1 bits per character, so the same strength is reached with fewer characters. A longer password always helps more than an exotic one.
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Yes. The passwords are generated in your browser with the Web Crypto API (crypto.getRandomValues), a cryptographically secure random number generator. Nothing you generate is sent to our server, stored, or tracked. You can even disconnect from the internet after the page has loaded and the generator keeps working.
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Characters such as quotes, comma, semicolon, angle brackets, ampersand, backslash, slash, pipe, dollar sign, backtick, curly braces and space can break CSV exports, SQL queries, HTML, JSON and shell scripts in poorly written applications. A well-built system handles every character, but the 14 symbols used here keep passwords portable across old admin panels, config files and integrations. The strength cost is small: add one or two characters to compensate.
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Because systems often limit bytes, not characters. Each Chinese character or Hangul syllable takes 3 bytes in UTF-8, so 24 of them already reach 72 bytes, the input limit of the widely used bcrypt hash. Database columns, legacy encodings such as GBK, Unicode normalization differences and fullwidth characters typed by an input method can also make a correct password fail. The generator shows the UTF-8 byte length and warns above 72 bytes.
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For accounts protected by a password manager, 16 random characters from letters, digits and symbols (about 100 bits) is a strong default. Use 20 or more characters for admin, hosting, domain registrar and advertising accounts. The strength meter next to each generated password shows its estimated entropy in bits.
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Yes, that is one of its main uses. Generate passwords with Chinese characters or Hangul and use them to test registration, login, password reset and account export on a staging site. If a password that worked at registration fails at login, the system is not handling UTF-8 consistently.
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Yes. It is free to use with no sign-up, no limits and no tracking of the passwords you generate.
Built by Jademond Digital, a Chinese digital marketing agency founded in Guangzhou in 2012. About us →