Shuffle Lines randomly reorders all lines in the text using the Fisher-Yates algorithm. Shuffle Characters randomizes the individual characters in each line independently. Useful for generating random quizzes, shuffling datasets, or creating test fixtures. Runs entirely in your browser.
Text Randomizer provides a fast and flexible way to shuffle text lines or individual characters instantly. This free online line shuffler allows you to randomize lines and reorder data into a truly random order without manual effort, making it an ideal word shuffler for creative and technical tasks. Whether you are generating quiz orders or performing a random sort on a large dataset, this utility handles the permutation locally in your browser for absolute privacy and speed.
This line shuffler is designed for unbiased randomization when working with multi-line blocks. The tool's randomize lines logic uses the Fisher-Yates algorithm to ensure that every possible permutation has an equal chance of appearing, providing a reliable randomise list service for developers and researchers. By offering both line-based and character-based modes, this text randomizer serves as a versatile shuffle text utility that handles thousands of rows effortlessly, making it an essential companion for any data-shuffling workflow.
It uses the Fisher–Yates algorithm, which gives every permutation equal probability - there is no bias toward any particular ordering.
Not in this tool - every run uses a fresh Math.random seed. If you need reproducible shuffles, copy the result the first time.
Math.random is not cryptographically secure. It's fine for casual quizzes and ordering test data, but use crypto.getRandomValues (or our Password Generator) for anything where bias matters.
By default empty lines are dropped before shuffling so you don't get a result peppered with random blank lines. There is a toggle to keep them if you need to.
Ensure your data is perfectly randomized with this efficient Text Randomizer tool.