Lyrebird · Realistic synthetic test databases, generated fully offline
SUBSETRAPLATFORM

Lyrebird by Subsetra

Realistic test databases.
No production data.

Lyrebird learns the shape of your database once, then generates synthetic test data that looks and behaves like production, with every foreign key intact. It runs entirely offline, on your own machines.

Request a demo How it works
  • Runs 100% offline
  • Foreign keys preserved
  • Desktop app & CLI
  • Linux, macOS & Windows

01 Connect once. Save the recipe.

Source database One-time read-only
Profile file Compact mathematical recipe

Statistical distributions and foreign-key graph metadata.

Source database is now disconnected. Physical air-gap.

02 Generate from recipe. Repeat offline anytime.

Saved profile
Lyrebird
Synthetic data

100% offline · Zero connection to production required

Profile once. Reuse the recipe for as many test environments as you need.

Works with the databases
you already use.

Why teams choose Lyrebird

Better test data.
Less risk and cost.

Copying production into test environments is slow, expensive and a compliance liability. Lyrebird removes the copy.

Compliance

Keep customer data in production

Teams test against synthetic rows, not copies of real customers. Fewer PII copies means a smaller audit scope under KVKK and GDPR.

Cost

Stop maintaining full replicas

Replace large production clones in staging with test databases sized to the job, generated when you need them.

Speed

Test data without the ticket queue

Developers and CI pipelines generate their own databases from a saved profile, with no waiting on refreshes or approvals.

How it works

Connect once.
Generate independently.

One read-only connection is all Lyrebird ever needs from your source database.

  1. 01

    Profile once

    Lyrebird connects read-only and records schema, relationships and value distributions in a compact profile file.

  2. 02

    Disconnect

    The source database is no longer needed. The profile and the local model are all Lyrebird uses from here on.

  3. 03

    Generate anywhere

    Create realistic, relationally consistent test databases on a laptop or in CI, as often as you need, fully offline.

See Lyrebird in detail

Community & Enterprise

Evaluate with confidence.
Expand when you’re ready.

Start with Community to evaluate Lyrebird against your own databases. Move to Enterprise when you need larger volumes and pipeline automation.

Free Evaluation

Community Edition

For development teams evaluating data realism, relational consistency, and local workflows on developer workstations.

  • Local database profiling and generation
  • Up to 5,000 synthetic rows per table
  • Native desktop app for Linux, macOS & Windows
  • Free profiling, inspection and JSON export
  • 100% offline and air-gapped execution
Request evaluation demo
Scale & Automation

Enterprise Edition

For organizations integrating high-volume synthetic test data into automated CI/CD pipelines, staging clusters, and performance testing suites.

  • No 5,000-row limit per table
  • Headless CLI for scripted pipelines and CI/CD runners
  • Override files for row counts, column and conditional distributions, and seeds
  • Offline enterprise license validation
  • Direct email contact with the engineers who build Lyrebird
Request enterprise demo

Also from Subsetra · Ark

Need masking and subsetting of real data?

Ark is our enterprise test data management platform. An agent inside your VPC discovers PII, masks and subsets production data, and provisions short-lived test databases with KVKK and GDPR reporting.

Explore Ark Brochure (PDF)

Talk to us

See Lyrebird on
your own schema.

Tell us which databases you run and how your teams test today. We will show you what Lyrebird generates from them.

Request a demo info@subsetra.com