Paste your schema. Get your diagram. That's it. No signup, no upload, no tracking.
Database design is complex. Communicating structure is harder. Existing tools require signup, subscriptions, or cloud uploads that expose your schema. This tool removes all friction. Drop in your CREATE TABLE statements, get a clean entity relationship diagram. Modify, regenerate, export. Share via PNG, SVG, or HTML. All in your browser. All completely free.
All processing happens in your browser. Your SQL never leaves your machine. No servers, no logs, no trackers.
MySQL, PostgreSQL, SQLite, SQL Server, MariaDB. Paste your statements and we handle the parsing.
Download as PNG, SVG, or HTML. Share diagrams with teams instantly. No account required.
Runs in any modern browser. Works offline. Load once, use forever.
"Finally, a tool that respects both my privacy and my time. No accounts, no AI upsell, no vendor lock-in. Just instant, accurate ER diagrams from raw SQL."
Open the tool in your browser. Paste SQL. See your entity relationships instantly.
Open SQL to ER ToolFree. Open source. Forever.
No plans to change this. No freemium tier. No upsell. The tool is completely free and will remain that way.
The Wishdeal Factory scores every idea against 10 Adoptability axes, separate from raw quality. Here are the numbers we surface for this one.
Everything on this page. The brand, the score, the Fermi math, the audio pitch.
ICP, MVP scope, first 7 build tasks, 30/60/90 launch plan, GTM, email drip, LinkedIn message, objections, risk memo.
Unlock dossierDossier plus the working code starter, brand assets, copy library, and outreach pack.
See adopt scopeHire the team that built this to install, customize, and run launch with you.
See scope