---
title: "InstantDB"
description: "Realtime relational database with an instant client SDK, offline support, permissions and optimistic updates on top of a Postgres backend."
canonical: "https://vibing.inc/library/instantdb-vg-0919"
category: "Dev Utilities & Vibe-Coding Tooling"
subcategory: "Local-first & sync"
license: "open-source"
author: "InstantDB (@instantdb)"
source: "https://instantdb.com"
---

# InstantDB
Realtime relational database with an instant client SDK, offline support, permissions and optimistic updates on top of a Postgres backend.
## Facts
- Source: https://instantdb.com
- Category: Dev Utilities & Vibe-Coding Tooling / Local-first & sync
- Author: InstantDB (@instantdb)
- Licence: open-source
- Tags: realtime, database, offline, backend
## Why it's a gem
Firebase ergonomics with real relations and a genuinely open-source server.
---
Listed in The Vibeary: https://vibing.inc/library/instantdb-vg-0919 · JSON: https://vibing.inc/api/public/library/gems/instantdb-vg-0919