SynthForge IO

Completely free.
No catches.

Design data models, generate unlimited synthetic datasets, and export to any format - all without paying a cent.

No sign-up fees No credit card No usage limits No trial period Get Started Free

Everything included. Zero cost.

Most tools charge for what SynthForge IO gives you for free

What you get with SynthForge IO

  • Unlimited schema designs

    Create as many data models as you need

  • Unlimited data generation

    Generate as many rows as you want, as often as you want

  • All 100+ field types

    Every field type across all 13 categories

  • All export formats

    CSV, SQL (7 dialects), JSON, MongoDB, Parquet, SQLite

  • AI-powered schema generation

    Describe your model in plain English

  • Referential integrity

    Foreign keys, cardinality, topological ordering

What paid tools typically charge for

  • Row limits on free tiers

    Usually 100-1,000 rows before you hit a paywall

  • Export format restrictions

    CSV only on free plans, SQL and others locked behind paid tiers

  • Limited field types

    Advanced types like healthcare codes or financial data require upgrades

  • No relationship support

    Most free tools generate flat tables with no foreign key integrity

  • Trial periods and credit cards

    14-day trials that require payment info upfront

  • Per-seat or per-project pricing

    Costs scale with team size and number of projects

  • Limited database support

    Most tools support 1-2 SQL dialects. SynthForge IO supports 7 SQL dialects + MongoDB + 6 JSON variants + Parquet with 4 compression algorithms.

Support the project

SynthForge IO is free because we believe developers should have access to great tools without barriers. If you find it valuable, consider supporting the project with a donation.

Donate

Frequently Asked Questions

Is SynthForge IO really completely free?

Yes. SynthForge IO is 100% free with no hidden costs. There are no sign-up fees, no credit card required, no usage limits, and no trial period. You get unlimited schema designs, unlimited data generation, all 100+ field types, all export formats, AI-powered schema generation, and full referential integrity at zero cost.

How does SynthForge IO compare to paid synthetic data tools?

Most paid alternatives like Mockaroo, Tonic.ai, or Gretel.ai impose row limits (100-1,000 rows on free tiers), restrict export formats, lock advanced field types behind paywalls, offer no relationship support on free plans, and require credit cards for trials. SynthForge IO gives you everything these tools charge for, completely free.

Why is SynthForge IO free?

SynthForge IO is free because we believe developers should have access to great tools without barriers. The project is supported by optional donations from users who find it valuable.

Start Using SynthForge IO for Free

No sign-up fees. No credit card. No usage limits. Just start designing and generating data.

Get Started Free