Tiger SQL
Secure, AI-powered PostgreSQL schema visualizer & designer
What it does
Tiger SQL is an open-source, tailored PostgreSQL schema designer running entirely in the browser. It combines intuitive drag-and-drop visualization with an AI assistant enhanced by the Model Context Protocol (MCP) for real-time best practices. Features strict type-checking, SQL import/export, and a privacy-first architecture where no database credentials ever leave your device. Build production-ready schemas faster and safer.
Does the same job
all alternatives →- CAChartDB Agent – Cursor for DB schema designOct 2025 · app.chartdb.io · ▲130
Last year we launched ChartDB OSS (https://news.ycombinator.com/item?id=44972238) - an open-source tool that generates ER diagrams from your database (via query/sql/dbml) without needing direct DB access. Now we’re launching the ChartDB Agent. It helps you design databases from scratch or make schema changes with natural language. You can: - Generate schemas by simply describing them in plain English - Brainstorm new tables, columns, and relationships with AI - Iterate visually in a diagram (ERD) - Deterministically export SQL script Try it out here -…
- VDVisualize database schemas with a single query2024 · github.com · ▲227
Hey HN! We are Jonathan & Guy, and we are happy to share a project we’ve been working on. ChartDB is a tool to help developers and data analysts quickly visualize database schemas by generating ER diagrams with just one query. A unique feature of our product is AI-Powered export for easy migration. You can give it a try at https://chartdb.io and find the source code on GitHub. Next steps ---> More AI. We’d love feedback :)
- GFGraphQL for Postgres2015 · github.com · ▲195
- SDSnapQL – Desktop app to query Postgres with AI2025 · github.com · ▲104
SnapQL is an open-source desktop app (built with Electron) that lets you query your Postgres database using natural language. It’s schema-aware, so you don’t need to copy-paste your schema or write complex SQL by hand. Everything runs locally — your OpenAI API key, your data, and your queries — so it's secure and private. Just connect your DB, describe what you want, and SnapQL writes and runs the SQL for you.
- PAPostgres as a VectorDB GUI2024 · github.com · ▲162
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