SchemaLens is a lightweight toolkit for exploring, visualizing, and understanding data schemas.
Quick table discovery with autocomplete suggestions and smooth navigation to any table in your schema.
- Real-time Search - Find tables as you type with intelligent filtering
- Schema Visualization - Interactive ERD with relationship mapping
Get a clear picture of your database health at a glance with the redesigned Recommendations sidebar.
- Schema Health Score — An instant 0–100 score that weights errors, warnings, and info items so you always know where you stand
- Statistics Dashboard — Tiles showing total issues, error count, warning count, and info items front-and-centre before you dig in
- Global View — See every recommendation across your entire database in one place, with filtering by table and schema
- Navigate to Any Table — Click the eye icon on any recommendation to instantly fly to that table in the ERD diagram
- Smart Filtering & Search — Filter by severity, search by rule name, table, or description, and sort by priority, type, or table name
- Resizable Panel — Drag the sidebar to exactly the width you need
Whether you're doing a quick schema audit or a deep-dive into data quality, the new sidebar gives you everything you need without leaving the diagram.
All services run in containers (frontend + Python API), so you do not need local Node or Python setup.
- Docker Desktop (or Docker Engine + Compose plugin)
From the repository root:
docker compose -f schemalens/infra/docker-compose.yml up --builddocker compose -f schemalens/infra/docker-compose.yml down