NODE.JS TOOLING, WITH A CLEARER PICTURE

Laranex.
Schema Viewer for Node.js

Understand how your data fits together.
Tables, constraints, and relationships — in one explorable view.

Node.js 22.13+PostgreSQLMySQLMariaDBSQLiteRead-only MCPDrift gateMIT

install

$npm install --save-dev node-schema-viewer

Requires Node.js 22.13 or later (22, 24 and 26 are tested). Version 0.1.1 is the first release; build supports Drizzle and live databases so far.

Copy command

Get started →Explore the live demo

Your schema, made visible

Explore the structure

Serve the shared Laranex viewer for a saved laranex-schema 2.0 document: tables, columns, keys, indexes, constraints and relationships, across several connections.

Read databases, read-only

Read PostgreSQL, MySQL, MariaDB and SQLite catalogs in verified read-only sessions, through the programmatic introspection API.

Catch schema drift in CI

Compare tenant schemas or a primary and a replica with compare, and fail a job on drift with the check gate.

Give agents context

Six read-only MCP tools help Codex and Claude Code discover tables, relationships and stored comparisons.

Try it before installing

INTERACTIVE DEMOSchema Three connections · combinedPrimary and replica compared

Loading the demo when it comes into view…Open full screen ↗

The demo uses the shared contract's synthetic fixtures. No application data or real schema is included.