Development Tools · head to head
Deno vs PartyKit
D
Deno
Development Tools
A fast, open-source, fully Node-compatible JS runtime with TypeScript baked right in
- From
- Free
- Rated
- -
PartyKit
Development Tools
Platform for building and deploying realtime multiplayer servers on the edge
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Deno the runtime itself is MIT licensed per the project's GitHub repository (denoland/deno LICENSE.md) with no cost, but Deno Deploy's free tier caps at 1 million requests and 15 CPU hours per month, per deno.com/deploy/pricing (Aug 2026); PartyKit documentation and FAQ material on the marketing site is sparse compared to larger realtime platforms.
Where they differ
Only the attributes on which Deno and PartyKit actually diverge.
Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), user rating (Not yet rated), category (Development Tools).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Deno
Nothing recorded that PartyKit does not also cover.
Only in PartyKit
- Stateful edge servers
- WebSocket-first API
- CRDT library compatibility
- Framework integrations
- Global edge deployment
- Custom domains
What people use each for
The jobs each tool is most often brought in to do.
Deno
No use cases recorded yet. See the Deno review.
PartyKit
- Multiplayer collaborative appsnot Deno
- Realtime AI agent backendsnot Deno
- Live cursors and presencenot Deno
- Collaborative whiteboards and documentsnot Deno
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Deno
- The runtime itself is MIT licensed per the project's GitHub repository (denoland/deno LICENSE.md) with no cost, but Deno Deploy's free tier caps at 1 million requests and 15 CPU hours per month, per deno.com/deploy/pricing (Aug 2026)
- Deno Deploy Pro at $20 per month charges $2 per additional million requests and $0.05 per additional CPU hour once the included quota is exceeded, per deno.com/deploy/pricing
PartyKit
- Documentation and FAQ material on the marketing site is sparse compared to larger realtime platforms.
- Commercial free tier requires deploying to the user's own Cloudflare account, adding setup complexity.
- Storage on the free Individual plan clears every 24 hours, limiting it to prototyping rather than persistent production data.
- Smaller ecosystem and community than more established realtime infrastructure providers.
Pricing, plan by plan
Deno
FreeNo published plan breakdown. See the Deno review.
PartyKit
Free- IndividualFree
- Up to 10 live projects
- Deploy to the global edge platform
- Storage clears every 24 hours
- CommercialFree
- Unlimited projects
- Custom domains
- Runs on your own Cloudflare account; pay only Cloudflare usage
Which should you pick?
Choose PartyKit if
- You need stateful edge servers.
- You want to start without paying.
- You work on web, api.
- You also want websocket-first api.
Questions people ask
- Is Deno or PartyKit better?
- Neither clearly leads. Deno starts at Free and PartyKit at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Deno or PartyKit?
- Deno starts at Free and PartyKit at Free.
- Does Deno or PartyKit run on more platforms?
- Deno runs on Web. PartyKit runs on web, api.
- Can I use Deno for free?
- Both have a free tier, so you can try either at no cost before committing.
- What can Deno do that PartyKit cannot?
- PartyKit covers Stateful edge servers, WebSocket-first API, CRDT library compatibility, Framework integrations.
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