Choose a tool
Generate structured rows, IDs, or time fields for your test data.
Structured / tabular data
Build CSV test data from schemas, preview rows, and download.
Generate JSON test data from a schema. Export as array or NDJSON.
Generate business-style IDs from a pattern (date, sequence, random).
Generate SQL INSERT statements for Postgres or MySQL from a schema.
IDs & secrets
Use for testing. Generated strings are not a substitute for real secret management.
Time & timestamps
Add realistic time fields for logs, events, and data pipelines.
Open Random Date & Time Generator
Generate synthetic time series with trend, seasonality, noise, missing values, and outliers.
Open Synthetic Time Series Generator
Generate Nginx/Apache or JSONL access logs for testing.
Quick start
- 1) Create rows with Random CSV generator.
- 2) Add IDs and tokens using UUID or Token generator.
- 3) Fill time columns with Random Date & Time Generator.
Guides & next steps
Need guidance on dev and data workflows? See the Dev & data topic guide.