# partykit/partykit

PartyKit simplifies developing multiplayer applications

Repository: https://github.com/partykit/partykit
Canonical: https://ross.abutalabs.com/products/partykit
Homepage: https://docs.partykit.io/
Language: TypeScript
License: MIT
License Family: permissive
Topics: edge-computing, multiplayer, real-time, websockets, backends, collaboration, crdts, games, yjs, gaming, realtime, durable-objects
Last push: 2026-01-29T16:04:37+00:00

## Health v2 (maintenance only)
Score: 62/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 64, release rhythm 40, longevity 97
- inputs: {"age_days": 1362, "days_push": 216, "days_rel": 454, "gap_med": 8.5, "n_releases_24m": 9}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5692, forks 199 (observed 2026-08-28T04:09:27.981578+00:00)

## What it is
PartyKit is a framework and platform for building realtime multiplayer applications using JavaScript/TypeScript servers ('parties') deployed to edge computing infrastructure. It handles WebSocket connections, room-based state, and scaling so developers can add collaborative or multiplayer features with minimal code.

## Use cases
- add real-time presence avatars to a web app
- build a multiplayer browser game backend
- create a collaborative whiteboard or text editor
- sync live reaction counters for events
- run long-lived agentic AI bots with realtime state
- add collaborative cursors like Figma or Google Docs

## When to choose
- you need realtime multiplayer or collaboration features in a web app
- you want managed edge infrastructure with WebSocket rooms and durable state
- you want a simple TypeScript server API with local dev tooling
- you use CRDT libraries like Yjs for shared state

## When to avoid
- you need fully self-hosted infrastructure without the PartyKit cloud
- your app is request/response only with no realtime needs
- you need non-JavaScript server runtimes
- you require strict data residency or on-prem deployment

## Facets
- artifact type: framework
- maturity: active
- function: websocket, web-framework, http-server, middleware, deployment
- domain: web-development, gaming-tools, developer-tools, backend
- platform: cloud, cross-platform
- tags: multiplayer, realtime, edge-computing, durable-objects, crdts, yjs, collaboration, presence, cloudflare-workers, real-time, nodejs, typescript, web-server

## Member repositories
- partykit/partykit (main) score 62

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:27.981578+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:53:44.016113+00:00, confidence not recorded.
  - readme: https://github.com/partykit/partykit (fetched 2026-08-28T04:09:27.981578+00:00, sha cabbb69d39bb)
  - homepage: https://docs.partykit.io/ (fetched 2026-08-29T08:49:25.486788+00:00, sha bdb1d0acb842)
  - site_page: https://docs.partykit.io/quickstart (fetched 2026-08-29T08:49:25.496148+00:00, sha 7619af6bc0d4)
  - site_page: https://blog.partykit.io/posts/partykit-powers-realtime-avatars-in-epic-web (fetched 2026-08-29T08:49:25.497987+00:00, sha 528ce08f2da6)
  - site_page: https://blog.partykit.io/posts/partykit-at-viteconf (fetched 2026-08-29T08:49:25.499783+00:00, sha 7f39f61b353a)
- Data as of 2026-08-30T08:39:29.467469+00:00.