Is Weavori an alternative to Greenmask?

They solve adjacent problems. Greenmask anonymizes and subsets real production dumps into test databases. Weavori generates synthetic data from your schema without using production records. If you must keep real values, pick Greenmask. If real data should not be held in test environments, pick Weavori.

Does Greenmask generate synthetic data?

No. Greenmask transforms real data through anonymization and subsetting. It is not a from-scratch generator. Weavori produces referentially intact synthetic rows from the schema alone, with distribution sampling to match production shapes.

Do I need production data to use Weavori?

No. Weavori reads your schema structure and, optionally, pg_stats distributions to shape realistic values. It does not require copying your production rows.

Which is faster to set up?

Weavori is zero-config: one command against a DSN, with a preview before any rows are written. Greenmask asks you to declare transformation rules per column in config files before running its dump and restore pipeline.

When should we choose Greenmask over Weavori?

When you specifically need to mask real production data, want self-hosted open-source software, or need features like validation diffs and partitioned-table handling that come from operating on real dumps.

weavori vs greenmask

Weavori vs Greenmask

Anonymize production data into safe test databases

Greenmask is an open-source Postgres tool that anonymizes and subsets your real production dumps into test databases. Weavori generates fresh synthetic data from your schema, through one zero-config command, without handling production data at all. If you need real rows made safe, Greenmask is built for it. If you need plausible rows without touching real data, Weavori is. Different jobs, same Postgres ecosystem.

Pricing verified July 2026 · Open source CLI (Go) · Greenmask website ↗

At a glance

Dimension	Weavori	Greenmask
Category	Commercial CLI (npx)	Open source anonymization (Go)
Approach	Generates new synthetic rows from schema	Anonymizes and subsets real production dumps
Real data needed	No, generates from structure and distributions	Yes, operates on actual production data
Configuration	Zero-config with semantic column rules	Declare transformation rules per column
Schema awareness	Full introspection of any Postgres schema	Config-driven table and column handling
FK integrity	By construction	Preserved from the real source data
Load path	Direct COPY streaming into the target database	Dump and restore pipeline with local or S3 storage
CI	First-class CLI with API keys and exit codes	You script the dump and restore workflow
MCP server	Yes (5 tools)	None
Pricing	Flat $15/mo, unlimited runs	Free OSS, commercial services by quote

See the plan before a single row is written

Point Weavori at any PostgreSQL database. The preview shows what it will generate, table by table.

How they compare

A closer look at the dimensions that actually change the decision, and where each tool wins.

Real data vs synthetic data

weavori

Weavori creates brand new rows from your schema and, optionally, sampled pg_stats distributions. It never copies your production records, so test data carries no live PII and there is nothing to leak downstream.

greenmask

Greenmask transforms your actual production dump, applying deterministic anonymization and subsetting. Because it starts from real data, it preserves genuine value patterns and relationships at full fidelity, but you must have production data and treat it carefully.

Bottom line: If reproducing exact real-world edge cases is the requirement, Greenmask's real-data lineage is a strength. If your constraint is that production data cannot be copied into lower environments, Weavori generates around it.

Configuration burden

weavori

Point one command at a DSN. Weavori introspects tables, foreign keys, enums, and constraints, and applies semantic column rules with no configuration. An interactive preview shows the plan before rows are written.

greenmask

Greenmask asks you to declare transformation rules for the columns you care about, in config files, then validate, dump, transform, and deploy. That control is powerful, but the setup is manual and per-column.

Bottom line: Weavori trades depth of per-column control for speed on a standard schema. Greenmask rewards teams who want to hand-tune exactly how each field is masked.

Workflow and automation

weavori

A CLI built for pipelines: connect, stream COPY into the target, exit with standardized codes, run in CI with API keys, validate licenses offline for air-gapped use.

greenmask

A dump and restore pipeline with parallel processing, pgzip, S3 support, partitioned-table handling, and validation diffs. You orchestrate the surrounding steps yourself.

Bottom line: For headless CI and ephemeral databases, Weavori is turnkey. For governed staging-environment pipelines, Greenmask's dump/restore model fits.

AI agent access and pricing

weavori

Ships an MCP server (5 tools) so agents can introspect, estimate, generate, run doctor, and sync. Self-serve flat pricing: $15/month Pro for up to 1,000,000 rows, and a permanent free tier.

greenmask

No MCP server. The core is free under Apache-2.0; commercial support, training, and consulting are priced by quote, and it runs on infrastructure you operate.

Bottom line: Both start free, but for different reasons. Weavori adds agent access and predictable self-serve pricing; Greenmask offers free open-source software plus paid services.

Which one fits your team?

choose weavori when

Teams that cannot copy real production data into lower environments
Zero-config Postgres synthetic data with no per-column rules to write
CI pipelines and ephemeral databases that need a real CLI with API keys
AI-agent workflows that want the schema available over MCP
Predictable flat pricing without operating your own infrastructure

choose greenmask when

Masking genuine production dumps where real value patterns must survive
Self-hosted open-source control under Apache-2.0
Validation diffs, partitioned-table handling, and dump/restore staging pipelines
Engineers willing to define transformation rules per column

Install Weavori and run it on your database

Free tier with unlimited runs, or the full-Pro trial for 14 days, with no credit card either way.

Frequently asked questions

The questions we hear most from teams evaluating Weavori against Greenmask.

Try Weavori against your own schema

Connect any PostgreSQL database and see the plan before a single row is written.

$npx --yes @weavori/cli generate postgres://localhost:5432/mydb

No credit card required. 14-day full-Pro trial, then free tier or subscribe.

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