6FortyOne Data Synthesizer

Upload your tabular dataset and generate high-quality synthetic data that preserves all statistical properties and relationships of your original data.

Upload Your Dataset

Drop your file here or click to browse

Supports CSV, Excel (.xlsx), JSON, and Parquet files up to 500MB. Free demo limited to original datasets of up to 2500 rows.

Email Address

Missing Values (NaN) Handling

Numerical Identifiers (Optional)

Enter column names of numerical identifiers that should not be treated as numbers (zip codes, phone numbers, etc.) Column names are case sensitive.

Data Multiplier

How much synthetic data do you want back? (e.g., If your original dataset contains 1000 rows and you select 1.0 as a multiplier, you will receive 1000 rows of synthetic data. If you select 2.5 as a multiplier, you will receive 2500 rows of synthetic data, and so on.)