Data Generation

Online Data Generator Tools - Free UUID, Password, Mock Data (JSON/CSV/SQL) Generators

UUID Generator

Versatile online UUID generator. Creates v1 (time-based), v4 (random), and v5 (namespace) UUIDs with multiple formatting options.

Password Generator

High-strength secure password generator. Uses cryptographically secure random numbers with customizable rules (length, character sets) to create uncrackable passwords.

Lorem Text

Quick Lorem Ipsum placeholder text generator. Creates dummy text by words/sentences/paragraphs for designers and developers testing layouts.

Data Mocking

Powerful and free online Mock Data generator. Customize data structure and instantly generate realistic JSON, CSV, or SQL INSERT statements for development, testing, and database population, greatly improving development efficiency.

Sequence Generator

A flexible online sequence generator that can create number sequences based on specified start, end, and step values, or letter sequences based on a pattern (e.g., A to ZZZ). It supports adding prefixes, suffixes, zero-padding, and various separators, making it easy to generate test data or numbered lists.