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Dev tools · June 8, 2023

PT

Private, text to entity-relationship diagram tool

Create ER diagrams, SQL schemas, and DBML models. No Signup required, Nothing to install. All diagrams are 100% private, secure and processed locally right in your web browser

Private, text to entity-relationship diagram tool launched on June 8, 2023 with 262 votes, #104 of 4,655 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 3 years on.

In plain words

Private is a text-to-entity-relationship diagram tool that converts written descriptions into visual database schemas. It helps developers and database designers quickly transform natural language specifications into structured ER diagrams. The tool is designed for anyone needing to visualize database relationships without manually drawing diagrams, streamlining the process of database planning and documentation.

written from the facts on this page · September 2026

From the sources

Create ER diagrams, SQL schemas, and DBML models entirely in your browser. No uploads, no tracking, and fully offline. Your database schema never leaves your computer. Ideal for engineering teams that prioritize privacy and data protection. Your diagrams stay on your computer. No uploads, no accounts, no cloud storage, and no tracking scripts. After the first load, the entire application runs locally in your browser without an internet connection. Database schemas often contain critical business logic and internal architecture. Keep everything secure and local. Define relational database diagrams using open-source schema languages with instant visual rendering. Export CREATE TABLE…from databasediagram.com

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  • CA
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    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 -…

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