I open-sourced the in-memory PostgreSQL I built at work for E2E tests

In plain words

This is an open-source, in-memory PostgreSQL implementation designed for end-to-end testing. Originally built for internal use at a company, it has been released for public use. The tool allows developers to run PostgreSQL-like databases in memory without requiring a full database installation, making it suitable for testing workflows where speed and isolation are priorities. It is available on GitHub for developers who need lightweight database testing environments.

written from the facts on this page · September 2026

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  PGlite – in-browser WASM Postgres with pgvector and live sync2024 · pglite.dev · ▲509

  Hey, Sam and the team from ElectricSQL here. PGlite is a WASM Postgres build packaged into a TypeScript/JavaScript client library, that enables you to run Postgres in the browser, Node.js and Bun, with no need to install any other dependencies. It's 3mb Gzipped, now has support for many Postgres extensions, including pgvector, and it has a reactive "live query" API. It's also fast, with CRUD style queries executing in under 0.3 ms, and larger, multi-row select queries occurring within a fraction of a single frame. PGlite started as an experimental project we shared on X, and the…

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  PgQueuer is a Python job queue that uses PostgreSQL for everything — queue storage, locking, notifications. No Redis, no RabbitMQ, no separate broker to operate. If your app already has Postgres, you already have the broker. After ~2 years and 26 minor releases, 1.0 ships today as the first stable release. Strict semver from here on. Thanks to everyone who contributed and left feedback!

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  Contribute to Z-Gort/Reservoirs-Lab development by creating an account on GitHub.

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  A high-performance Postgres replication engine written in Rust. Embed it in your Rust application or run it as a standalone binary. - supabase/etl

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