PostgreSQL synthetic data in one command
Connect to any Postgres database, introspect the schema, and produce production-quality synthetic data in minutes. Zero config.
$npm install -g @weavori/cli
From schema to replica in one command
Weavori infers every column from its name and type, keeps every relationship intact, and reproduces your data's real shape, then layers in your formulas and datasets.
Schema in. Replica out.
Column-name rules and type fallbacks map every column to a generator that fits: first_name becomes a name, zip becomes a ZIP. No config file to drift when your schema changes.
$ weavori generate postgres://acme:5432/sales --target postgres://acme:5432/dev
Distribution-aware generation
If 70% of your real statuses are active, the replica stays 70% active. Query plans and indexes behave like production, with nothing to configure.
Referential integrity
Every foreign key points at a real generated parent, guaranteed by construction. Joins and queries behave exactly like production.
✓ users → orders → order_items
parents first · orphans impossible
Cross-column consistency
No customer predates their own signup, no paid order is missing its paid_at. Detected from your schema, with nothing to configure.
created_at < updated_at
paid_at NULL unless status='paid'
Formula engine
Compose derived columns with eight built-in functions, no post-processing scripts, no SQL transforms on the target. A typo fails at plan time, never at row 50,000.
email ← lower(concat(first, ".", last, "@corp.io"))
✓ fail-fast at plan time
Bring your own data
When realism means your actual values, your SKUs, your regions, your tiers, supply them as CSV and map them to any column. Type-checked before a single row is generated.
orders.product_code ← products.sku
✓ products.csv · 1,240 rows type-checked
Realistic doesn't mean slow
Streaming generation with constant memory, so scale never trades off against correctness.
12.4s
100,000 rows across 14 tables
generated into a target database via COPY
2.1s
25,000 rows
2,500 rows in 384 ms
<2 min
Typical schemas under 200 tables
from DSN to complete replica
500 GB
Stress-tested benchmark database
validating scale and memory stability
Benchmarks measured July 2026 against PostgreSQL 17 (COPY protocol). Numbers vary with hardware and schema shape. Read how realistic test data is generated.
Pricing that scales with you
Start with a 14-day free Pro trial. No credit card required. Upgrade when you scale.
Free
$0/mo
For individual developers exploring synthetic data.
- Includes a 14-day Pro trial
- 2,000 rows per month
- Unlimited tables
- Unlimited runs
- Direct DB export (--target)
- CSV datasets & formula support
- No credit card required
Popular
Pro
$15/mo
For professional developers and teams. Start with a 14-day free trial.
- 1 million rows per month
- Unlimited tables
- Unlimited runs
- Sync command included
- Direct DB export (--target)
- CSV datasets & formula support
Coming Soon
Business
TBD/mo
Coming Soon: for organizations with production workloads.
- Unlimited rows & tables
- All Pro features
- Priority support
Frequently asked questions
Answers to the most common questions about Weavori.
Ready to generate your first dataset?
Install Weavori in one command and connect to any PostgreSQL database.
$npm install -g @weavori/cli
macOS · Linux · Windows/No dependencies required
No credit card required. Start with a 14-day free trial of Pro, then free tier or subscribe.