Used by teams to seed test and demo environments

Realistic test databases, instantly

Synthehol DB generates relationally linked test databases that look like production without the privacy risk. Seed your dev environment, run integration tests, or demo your app with data that works.

Generate Your First Database → See How It Works
✓ Free to start ✓ Zero PII in generated output ✓ Referential integrity preserved automatically
How It Works

From schema to test database in two steps

Describe your database or import your schema. Synthehol DB generates thousands of realistic, linked rows.

1

Define Your Schema

Start from a template, upload CSVs, or describe what you need in plain English. The AI builds your tables and relationships visually, no SQL required.

Templates CSV import AI schema builder Visual editor
2

Generate Realistic Data

Synthehol DB fills your tables with data that behaves like production. Names match addresses, foreign keys resolve correctly, and distributions follow realistic patterns.

Realistic distributions Valid foreign keys Real-time progress Large-scale generation
Features

Built for developers who need data that works

Design schemas, generate test data, and export from one tool. No scripts, no brittle pipelines, no cleanup.

Starter Schemas

Pre-built schemas for e-commerce, SaaS, FinTech, and more, complete with sample data so you can start in seconds.

Import Your Existing Schema

Drop in CSVs from your existing database. Synthehol DB detects columns, data types, and relationships automatically.

Tune Column Correlations

Control how columns correlate so salary scales with tenure, order value tracks customer tier, and generated output stays believable.

AI Schema Builder

Describe what you need in plain English and let the AI create the schema, relationships, and structure for review.

Watch Generation Live

See rows populate table by table in real time so you know exactly when your database is ready.

Built-In Data Quality Checks

Review distribution comparisons and sensitive-pattern alerts before export so shared datasets remain safe and useful.

Workflow

Schema to CSV in under 5 minutes

Four steps to a production-realistic database you can actually ship.

1

Pick a Starting Point

Choose a starter schema, import your own CSVs, or describe your data model to the AI.

2

Configure

Set row counts, correlations, and constraints so the output matches your use case.

3

Generate

Run generation and watch realistic, linked rows populate your tables in real time.

4

Export and Ship

Review quality checks, then download CSVs ready for local development, CI, or demos.

Describe your data model. Get a seeded database.

Tell Synthehol DB what you need in plain English. The AI designs your schema, generates realistic data with valid relationships, and exports ready-to-use CSVs.

  • AI infers tables, columns, and relationships from your description
  • Generated values follow realistic statistical distributions
  • Foreign keys and cross-table references always resolve
  • PII detection flags sensitive patterns before you export
-- You type:
"E-commerce app with users, products, orders, and reviews" -- Synthehol DB creates:

TABLE users
  id, name, email, signup_date, lifetime_value

TABLE products
  id, title, category, price, avg_rating

TABLE orders
  id, user_id → users, product_id → products, quantity, total, created_at

TABLE reviews
  id, user_id → users, product_id → products, rating, body, created_at
4 tables • 6 foreign keys • 50,000 rows
avg_rating matches the distribution of review scores lifetime_value correlates with order history PII scan passed with synthetic output only
Privacy and Quality

Safe to share, realistic enough to ship

Every database is generated from scratch. Built-in checks ensure quality and privacy before you export.

Privacy Built In

All data is generated from statistical models instead of copied or masked production records.

Looks Like the Real Thing

Generated data preserves distributions, ranges, and relational patterns with a built-in quality dashboard to review outcomes.

Sensitive Data Alerts

Synthehol DB scans generated output for patterns that resemble real PII and flags them before export.

Pricing

Current plans, without hardcoded sample pricing

This section loads the same plan data the app uses, so the landing page stays aligned with your actual pricing.

Annual billing saves 20%

Pricing updates automatically from the live billing plan configuration.

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Generate your first database in 60 seconds

Pick a starter schema or describe what you need. Go straight from idea to synthetic data.

Generate Test Database Free →