Test Dataset Generator is a fast, deterministic desktop tool for designing tabular data schemas and producing realistic synthetic test datasets locally on Linux. Build custom column rules, inspect live column value distributions, and export up to 50,000 reproducible rows into batched SQL INSERT statements, CSV, JSON, or JSON-Lines files.

Key Features:

• Column Schema & Generator Rules: Visual field builder supporting UUIDv4, Full Name, Email, Phone, City/Country, ISO Date/Timestamp, Decimal Price, Weighted Enum, Integer Sequence, Boolean, and Lorem Sentence with a reproducible RNG seed and configurable per-column null rate percentage.
• Live Table Preview & Stats: Generates 10 to 50,000 rows instantaneously in memory with paged table inspection, search filtering, and live column distribution charts and summary statistics.
• Bulk SQL / CSV / JSON Exporter: Exports up to 50,000 generated rows as batched SQL INSERT INTO scripts (with optional CREATE TABLE DDL), CSV, formatted JSON, and streaming JSON-Lines (.jsonl).

Disclaimer: Test Dataset Generator is an independent open-source project by TC Studio and is not affiliated with, endorsed by, or sponsored by Mockaroo.