SynthForge IO

SynthForge IO generates realistic synthetic and test data across related database tables in a single pass, and every foreign key points at a parent row that actually exists.

Design the schema from plain English, a visual editor, pasted SQL DDL, a CSV, or a template. Then generate every table together: 152 field types across 19 categories, statistical distributions, conditional column values and per-relationship cardinality. Downloads include ready-to-run import scripts for PostgreSQL, MySQL, SQLite, SQL Server, MariaDB, DuckDB and CockroachDB, or you can take CSV, JSON, JSONL or Parquet.

Automate it from scripts, CI or AI agents with personal API keys, a public OpenAPI spec, a TypeScript SDK on npm (@synthforgeio/sdk), and a hosted MCP server for agent hosts such as Claude and Cursor.

Pricing: the first 20,000 rows of every dataset are free in the web app. Past that, generation uses credits (a credit is one cent), sold in packs from $5 with no subscription. API keys pay from the first row, and your first key comes with 250 credits. You need an account, but not a credit card.

SynthForge IO makes new data from a schema. It does not de-identify production databases.