---
title: NoLag vs Supabase Realtime
description: "NoLag vs Supabase Realtime: both give you realtime over WebSocket. Supabase ties realtime to a Postgres backend; NoLag is dedicated realtime infrastructure with blueprint SDKs and a coordination layer for AI agents."
---

# NoLag vs Supabase Realtime

Supabase is an all-in-one backend built around Postgres, with authentication, storage, edge functions, and a Realtime feature for broadcasting database changes, presence, and messages over WebSocket. NoLag is dedicated realtime messaging infrastructure with the same pub/sub foundation, plus two things Supabase Realtime does not focus on: blueprint SDKs for common app patterns, and a coordination layer built for AI agents.

Short version: if you want a managed Postgres backend and realtime is one feature alongside it, Supabase is a great fit. If realtime messaging and agent coordination are the core of what you are building, and you do not want to be tied to a specific database, NoLag is built for that.

## At a glance

| | NoLag | Supabase Realtime |
| --- | --- | --- |
| Core model | Realtime pub/sub over WebSocket | Realtime over WebSocket, coupled to Postgres |
| Database | Database-agnostic, bring your own | Postgres, part of the platform |
| High-level SDKs | Blueprints for chat, notify, feed, dashboards, tracking, sync, and more | Realtime channels: broadcast, presence, Postgres changes |
| AI-agent coordination | Built in: dispatch, share state, observe, approve | Not a focus |
| Delivery | Presence, QoS levels | Presence, broadcast, change data capture |
| SDKs | JavaScript/TypeScript, Go, Python | Client libraries across several languages |

## Where NoLag is different

- **Not tied to a database.** NoLag is a messaging layer you can put in front of any stack, rather than realtime bound to Postgres change feeds.
- **Blueprint SDKs.** A domain-specific API for chat, notifications, dashboards, tracking, and more, so you skip the plumbing.
- **A coordination layer for AI agents.** Dispatch, share state, observe decisions, and gate actions with human approval, framework-agnostic and on the same infrastructure as your app features.

## Where Supabase is a strong fit

- You want a managed Postgres backend with auth, storage, and functions in one place.
- Your realtime needs are mostly reacting to database changes.
- You are happy to standardise on the Supabase ecosystem.

## When to choose NoLag

- You are building AI-agent features and want coordination primitives, not just transport.
- You want higher-level SDKs to ship common realtime patterns quickly.
- You want realtime messaging that is independent of your database choice.

## Try it

Follow the [5-minute quick start](/docs/getting-started), then look at the [high-level SDKs](/docs/high-level-sdks) and the [AI agents](/docs/agents) guide.