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Schema Weaver – Browser-based PostgreSQL workspace with AI that acts on your schema

I built Schema Weaver because I kept juggling PGAdmin, DBeaver, handwritten migration scripts, and CSV exports across every Postgres project. Everything was disconnected. So I built one browser-based tool that handles the full workflow.

It has two surfaces:

SQL Editor (sql-editor.schemaweaver.vivekmind.com) - Multi-file DDL projects — organise schema like a codebase, editor auto-merges files for compilation - 20-layer schema compiler runs client-side under 50ms: grades your schema A-F, detects missing PKs, RLS gaps, circular dependencies, orphan sequences, unsafe security definers - Live ER diagram auto-generated from SQL, updates keystroke-by-keystroke, handles 1000+ tables - Dijkstra + BFS path analysis to find shortest JOIN path between any two tables - Migration engine with advisory locking, drift detection, 6-phase safe mode for column type changes, tamper-evident audit chain - Resona AI: ReAct agentic loop, 55 purpose-built tools, Table/Group/Global AI contexts, surgical multi-file patching, streams reasoning chain in real time

Data Explorer (data-explorer.schemaweaver.vivekmind.com) - Virtualized grid handles millions of rows with canvas-based smart column sizing (95th percentile sampling) - Column statistics on click: null rate, distinct count, distribution histogram - Resona AI with 40+ tools: natural language to SQL, charts, anomaly detection, PPTX/PDF report generation - Zero exfiltration: row data streams directly from your database to your browser, never touches our servers - Read-only by default, automatic PII masking

Full PostgreSQL 12-17 support: partitions, RLS, composite types, domains, materialized views, PL/pgSQL, extensions.

No install. No desktop app. Live demo database included so you can try without connecting your own instance.

Tech stack: React/TypeScript frontend, Node.js backend for connections, Python/FastAPI for the AI agent layer, AWS Bedrock for model routing.

Looking for honest technical feedback on the compiler accuracy, agent reliability, and anything that breaks.

Free to try, no credit card: schemaweaver.vivekmind.com