Postgres.new: In-browser Postgres with an AI interface

A closer look at Postgres.new: In-browser Postgres with an AI interface

What postgres.new (database.build) actually is

postgres.new, now renaming to database.build, is an in-browser Postgres sandbox that pairs each local database with a large language model (LLM). It runs Postgres compiled to WebAssembly (PGlite) so the databases execute directly in your browser with no remote Postgres container or WebSocket proxy.

What you can do there right now

Spin up unlimited disposable Postgres databases that run locally in your browser.

Drag-and-drop a CSV onto the chat to create a table automatically; the LLM inspects headers and sample rows to pick column types.

Have the paired model generate and run SQL, export query results to CSV, and create charts by asking for a "chart" - charts are rendered using Chart.js based on SQL output.

Ask the model to perform DDL (CREATE/ALTER) against the sandbox, produce ER diagrams from the resulting tables, and gather migrations by concatenating DDL-related SQL from the chat history.

Who will find it useful

Developers comfortable with SQL who want to query CSVs or prototypes without setting up a server-side database.

People who want an interactive, disposable place to test SQL, generate reports, or iterate on schema design with AI-generated DDL and ER diagrams.

Anyone who prefers a local, fast sandbox workflow since all queries execute in the browser via PGlite.

Questions people ask about Postgres.new: In-browser Postgres with an AI interface

Does the database run remotely or in my browser?

All queries run directly in your browser using PGlite; there is no remote Postgres container or WebSocket proxy.

Can the AI modify my database without asking?

The site pairs each database with an LLM and gives it full autonomy over the database, allowing it to run multiple operations without additional confirmations.

How are charts produced from queries?

You can ask for a chart in chat; the model converts the SQL output into Chart.js syntax and the page renders the chart with Chart.js.

Postgres.new: In-browser Postgres with an AI interface was shared on NexURLs by Nexis on October 31, 2026, in Tech & AI.