Code tool

Random Data Shuffler

Paste one data row per line, shuffle locally, then copy or download the result.

In-browser processingNo account requiredPrivacy details ↗

Up to 50,000 rows and 100,000 characters. Browser pseudo-randomness only; not cryptographic randomness.

A QUICK WALKTHROUGH

How to use this tool

  1. Paste up to 50,000 rows and 100,000 characters.
  2. Choose Shuffle rows.
  3. Review, copy, or download the result.

Rows stay intact

Each line is treated as one row. The tool changes only row order; it does not parse CSV columns, edit values, remove duplicates, or sort.

Local pseudo-randomness

The shuffle uses browser Math.random. It is local and convenient, but not cryptographic and unsuitable for secrets or fairness-critical decisions.

GOOD TO KNOW

Common questions

Does it change row content?

No. Only row order changes.

Is it cryptographically secure?

No. It uses browser pseudo-randomness.

Are blank rows preserved?

Yes. Blank lines are rows.