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PartyKit

Free#12 of 55 in WebSocket Tools

PartyKit: A free JavaScript and WebAssembly platform for real-time apps, with a Cloudflare deployment option. Ranked #12 of 55 in WebSocket Tools by our editors (7.5/10); pricing: Free plan; best for small teams building real-time apps with JavaScript.

7.5/10Editor score
Visit PartyKit
PartyKit7.5 Visit PartyKit

At a glance

  • Editor score
    7.5 / 10
  • Pricing
    Free plan
  • Best for
    Small teams building real-time apps with JavaScript
  • Free plan
    Yes
  • Paid from
    None
  • Deployment model
    Managed
  • Facts checked
    28 Sep 2026

  • Where it wins

    • Client APIs include auto-reconnect, timeout handling, and message buffering
    • Local development tools, deployment previews, secrets, and logging
    • Integrates with Yjs, Automerge, Replicache, XState, tldraw, and TinyBase

  • Where it doesn't

    • Individual-plan storage is cleared every 24 hours
    • Commercial deployments require your own Cloudflare account
    • Support channels are community and documentation

Our verdict on PartyKit

PartyKit is a developer platform for adding real-time features to multiplayer applications, games, and websites. Developers write server logic in JavaScript or WebAssembly and deploy it to an edge platform, with WebSocket server and client APIs for handling connections. Its fit is clearest for solo developers and small teams building collaborative editors, whiteboards, games, or AI applications; it is less suited to teams seeking a broadly adopted, established platform.

The plan structure makes the deployment choice central. Individual is free and deploys to PartyKit’s global edge platform, supports up to 10 live projects, and clears storage every 24 hours. Commercial is also free for deployments to your own Cloudflare account, allows unlimited projects, and supports custom domains; Cloudflare usage is billed separately. This can suit a small project that wants to avoid a PartyKit plan charge, but requires accounting for Cloudflare usage and choosing where the application runs. The published plan highlights do not state a concurrent-connection allowance.

PartyKit’s client support and ecosystem are practical strengths for real-time development. The client library supports JavaScript/TypeScript, React, React Native, Node.js, and Service Workers, while connection handling includes auto-reconnect, timeout handling, and message buffering. Local development tools, deployment previews, secrets management, and logging round out the workflow. Integrations include Yjs, Automerge, Replicache, XState, tldraw, TinyBase, Vercel, Netlify, AWS, Cloudflare, and fly.io. Choose it when those real-time patterns and the Cloudflare edge model match your project; consider alternatives if broad adoption or a larger-team fit is a priority.

PartyKit pricing

Plans Free planFree Free to use — no paid tier required for the core job.
See plans on partykit.io

All 2 PartyKit plans and prices →

PartyKit fact sheet

Free planYes
Paid fromNone
Deployment modelManaged
Free concurrent connectionsNot verified
Pub/sub messagingNot verified
Self-hosting availableYes
Client SDKsJavaScript/TypeScript, React, React Native, Node.js, Service Workers
Protocol supportWebSockets, Fetch, Request-Response
DeploymentCloud, Self-hosted
PlatformsWeb
SupportCommunity, Docs
Built forSolo, Small business (editorial estimate)
Integrations11 integrations: Yjs, Automerge, Replicache, XState, tldraw, TinyBase …
PricingFree plan (source)
Websitepartykit.io
Facts checked28 Sep 2026

PartyKit integrations

PartyKit lists 11 integrations on its own site.

  • Yjs
  • Automerge
  • Replicache
  • XState
  • tldraw
  • TinyBase
  • Vercel
  • Netlify
  • AWS
  • Cloudflare
  • fly.io

Alternatives to PartyKit

See all PartyKit alternatives →

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Featured on iTechGuides

Featured on iTechGuides — PartyKit 7.5/10

PartyKit is listed in our WebSocket Tools directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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