Random Generators
Generate random numbers, names, dates, passwords, selections and test data.
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Random Picker
Draw one or more entries from a custom candidate list.
Random Group Generator
Shuffle a member list and split it into balanced groups by group count or size.
English and Chinese Name Generator
Generate fictional English- or Chinese-style names for test data. Choose the name style and gender; these are not verified identities.
Random JSON Data Generator
Create synthetic user, product or article-shaped JSON records for development fixtures.
Random Date Generator
Generate dates within an inclusive selected range.
Random Time Generator
Generate times inside a selected daily range in 12- or 24-hour format.
Random Phone Number Generator
Generate fictional mainland-China or US +1-555 phone-shaped strings for form tests. Results are not verified contact numbers.
Random Email Generator
Generate fictional email-shaped values with a selected test or custom domain.
Random IP Address Generator
Generate fictional IPv4 or IPv6 address strings for ordinary test data.
Chinese and English Placeholder Text Generator
Use the built-in Chinese/English vocabulary, or supply your own words or fragments, one per line. A nonblank custom list replaces the vocabulary. The language selector controls spacing and punctuation: English uses spaces and periods; Chinese joins terms and uses 。. It does not translate your list or create natural prose. Limits: 100,000 input characters, 10,000 entries and a conservative 1,000,000-character output budget.
Random Boolean Generator
Generate true or false values using a configurable probability of true.
Random URL Generator
Generate HTTP or HTTPS test URL strings with an optional ASCII host and one random 5–16 character path segment.
Random Array Generator
Generate a JSON array with a selected length and element type for tests and examples.
Random Emoji Generator
Pick emoji by category and quantity for mockups, labels or test content.
Code 128 Barcode Generator
Encode printable ASCII text as a real Code 128 barcode and save a PNG. Blank input generates random digits. Supports Code 128 only, not EAN, UPC or GS1 registration; verify scanning before operational use.
Random CAPTCHA Text Generator
Generate random test strings and a PNG sheet of the first 100 CAPTCHA-style images. The answers remain visible; this is a prototype fixture generator, not a server-verified CAPTCHA or anti-bot service.
Custom Text Randomizer
Pick, shuffle or repeat entries from text you provide.
Random Number Generator
Generate integers or decimals within a selected range with duplicate controls.
Coin Flip Simulator
Flip one or more virtual coins and summarize heads and tails.
Online Dice Roller
Roll virtual dice with configurable sides, dice per round and round count; view each roll and its sum.
Gaussian Random Number Generator
Generate values following an approximate normal distribution with a selected mean and standard deviation.
Strong Password Generator
Create passwords with configurable length and character sets using the browser secure-random source.
Random String Generator
Generate strings by length, quantity and enabled character sets.
UUID v4 Generator
Generate RFC 4122-compatible version 4 UUID values in the browser.