Why use online Random String?

JieBang Random String requires no software installation. Open your browser and start using it immediately. It's completely free with data processed locally for privacy.

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随机字符串Generate

自定义长度、字符类型和数量，批量Generate随机字符串

字符串长度

Generate数量

字符类型

大写字母 (A-Z)

小写字母 (a-z)

数字 (0-9)

特殊字符 (!@#$%^&*)

排除相似字符 (0OoIl1)

启用后可避免视觉混淆的字符，提高可读性

What is Random String Generator?

Random String Generator creates random strings of specified length and character set. Used for creating passwords, test data, activation codes, coupon codes.

How to Use Random String Generator?

Set string length and character set
Choose to exclude similar characters
Generate and copy with one click

Common Use Cases

Generate secure random passwords
Batch generate test data
Create activation or coupon codes

Why Choose JieBang Random String Generator?

100% free, no signup required
Data stays in your browser, completely private
Works on any device, instant access

Frequently Asked Questions

What is a regex tester?

A regex tester lets you write and test regular expressions against sample text in real-time, highlighting matches as you type.

How to test an API endpoint?

Enter the URL, select HTTP method (GET/POST/PUT/DELETE), add headers and body, then click Send. JieBang's API Tester shows the response instantly.

Are developer tools free?

Yes, all JieBang developer tools are 100% free — JSON formatter, Base64 encoder, regex tester, API tester, cron validator, and more.

随机字符串Generate