Use our random string generator to create one or more random strings for form filling, API testing, placeholder text, or temporary identifiers. It works directly in your browser—free, simple, no registration required. We also don’t store any content you generate.
What can it do?
- Generate strings of your desired length (commonly 12–24 characters).
- Freely choose which characters to include: uppercase letters, lowercase letters, numbers, symbols.
- Copy the generated result with one click and paste it immediately where needed.
- Supports multilingual interfaces: Chinese, English, and other common languages are available.
How to use it? It’s simple
- Select your interface language if needed.
- Set the length and check the character types you want.
- Click “Generate,” then click “Copy.”
Who is it for?
- People who need dummy content for form testing.
- Developers needing temporary placeholder text for web pages or programs.
- Those creating demos or prototypes requiring a “unique-looking” identifier.
- Those wanting a quick test of random strings.
Tips
- For harder-to-guess strings: Choose a longer length (e.g., 24 characters) and select “Uppercase + Lowercase + Numbers + Symbols”.
- For easier readability: Select only “Uppercase + Lowercase + Numbers” and skip symbols.
- For placeholders or temporary use: 12–16 characters is usually sufficient.
Examples (See what they look like)
- 16 characters (common):
A9dK3tQ2Zx7vLm1P - 12 characters (more readable):
M4s8aZ1bQ2wE - 20 characters (harder to guess):
q7n3x0c9t2m8b4l1r6p2
Frequently Asked Questions
- Is my generated content saved? No. We neither record nor upload your generated strings.
- Does it work on mobile? Yes. It works on major browsers across mobile and desktop.
- Is this string “absolutely unique”?
It’s randomly generated and rarely repeats, but we cannot guarantee absolute uniqueness. If your business requires guaranteed uniqueness, combine this with database “unique constraints” or use specialized unique ID schemes.
If you’d like us to add more features (like excluding certain characters or generating based on templates), feel free to leave feedback on our website. We’re committed to continuous improvement to make this tool even better.