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Developer Tools · head to head

PartyKit vs VMware Carbon Black

P

PartyKit

Developer Tools

Platform for building and deploying realtime multiplayer servers on the edge

From
Free
Free plan
Yes
Full reviewWebsite
V

VMware Carbon Black

Cybersecurity

Cloud-delivered endpoint protection and EDR, now owned by Broadcom and positioned alongside Symantec.

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Only PartyKit has a free tier, so it costs nothing to try first.
  • Each has a real cost: PartyKit documentation and FAQ material on the marketing site is sparse compared to larger realtime platforms.; VMware Carbon Black broadcom's enterprise model concentrates direct sales and support on its largest accounts and moves everyone else to resellers, so a mid-size customer can lose named support contacts and face a substantially repriced renewal with limited notice.
  • They diverge on capability: PartyKit covers Stateful edge servers, VMware Carbon Black covers Endpoint Standard.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which PartyKit and VMware Carbon Black actually diverge.

Attributes where PartyKit and VMware Carbon Black differ
AttributePartyKitVMware Carbon Black
Starting priceFreeOn request
Pricing modelfreemiumsubscription
Free tierYesNo
Platformsweb, apiDesktop, Api
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2002

Identical on both: user rating (Not yet rated).

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 PartyKit

  • Stateful edge servers
  • WebSocket-first API
  • CRDT library compatibility
  • Framework integrations
  • Global edge deployment
  • Custom domains

Only in VMware Carbon Black

  • Endpoint Standard
  • Enterprise EDR
  • Audit and Remediation
  • Single sensor
  • Live Response
  • Workload protection
  • Container security
  • Watchlists and feeds

What people use each for

The jobs each tool is most often brought in to do.

PartyKit

  • Multiplayer collaborative appsnot VMware Carbon Black
  • Realtime AI agent backendsnot VMware Carbon Black
  • Live cursors and presencenot VMware Carbon Black
  • Collaborative whiteboards and documentsnot VMware Carbon Black

VMware Carbon Black

  • A SOC that wants unfiltered endpoint telemetry to hunt over rather than only vendor-generated alertsnot PartyKit
  • A vSphere estate that wants workload protection deployed through the hypervisor instead of installing an agent in every guestnot PartyKit
  • Replacing signature antivirus after an incident where the incumbent product had no record of what the attacker didnot PartyKit
  • An organisation already inside a Broadcom or Symantec enterprise agreement that can consolidate endpoint onto an existing contractnot PartyKit

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

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.

VMware Carbon Black

  • Broadcom's enterprise model concentrates direct sales and support on its largest accounts and moves everyone else to resellers, so a mid-size customer can lose named support contacts and face a substantially repriced renewal with limited notice.
  • Continuous EDR recording is retained for a defined window and longer retention is a paid tier, so the investigation you most need is often the one whose telemetry has already aged out, and that is discovered during the incident rather than before it.
  • The product assumes an operator: watchlists, policy tuning and alert triage are ongoing work, and organisations without a dedicated analyst or an MDR contract typically leave policies in monitor mode and pay for telemetry that is never reviewed.
  • The sensor operates in the same kernel and file-filter territory as other endpoint agents, so running it alongside an incumbent antivirus, DLP or backup agent commonly produces performance complaints and requires maintained exclusion lists on both sides.
  • Linux sensor support is tied to specific distribution and kernel versions, so a routine operating system upgrade can leave hosts without a supported sensor until a matching build ships, and anything outside the supported list gets no coverage at all.

Pricing, plan by plan

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

VMware Carbon Black

On request
  • CB Endpoint StandardFree
    • NGAV
    • Behavioral EDR
    • Device control
  • CB Endpoint AdvancedFree
    • All Standard features
    • Threat hunting
    • Audit and remediation
  • CB Endpoint EnterpriseFree
    • All Advanced features
    • Advanced threat hunting
    • Live response

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.
PartyKit review

Choose VMware Carbon Black if

  • You need endpoint standard.
  • You work on Desktop, Api.
  • You also want enterprise edr.
VMware Carbon Black review

Questions people ask

Is PartyKit or VMware Carbon Black better?
Neither clearly leads. PartyKit starts at Free and VMware Carbon Black at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PartyKit or VMware Carbon Black?
PartyKit has a free tier; the other does not. Paid plans start at Free for PartyKit and On request for VMware Carbon Black.
Does PartyKit or VMware Carbon Black run on more platforms?
PartyKit runs on web, api. VMware Carbon Black runs on Desktop, Api.
Can I use PartyKit for free?
Yes. PartyKit has a free tier, so you can try it without paying. VMware Carbon Black starts at On request.
What is PartyKit best used for?
PartyKit is most often used for multiplayer collaborative apps, realtime ai agent backends, live cursors and presence, collaborative whiteboards and documents. Of those, multiplayer collaborative apps and realtime ai agent backends are not what VMware Carbon Black is typically brought in for.
What can PartyKit do that VMware Carbon Black cannot?
PartyKit covers Stateful edge servers, WebSocket-first API, CRDT library compatibility, Framework integrations. VMware Carbon Black covers Endpoint Standard, Enterprise EDR, Audit and Remediation, Single sensor.

Answered from the vendors’ own pages

PartyKit: How much does PartyKit cost?

PartyKit is completely free. Both the Individual and Commercial plans have no upfront costs.

Source
VMware Carbon Black: Who owns Carbon Black now?

Broadcom. It acquired VMware in November 2023, and Carbon Black now sits in Broadcom's enterprise security business alongside Symantec. VMware branding is being phased out.

PartyKit: What is PartyKit's Individual plan?

The Individual plan is free and includes deployment to a global edge platform, support for up to 10 live projects, and is suitable for small projects. Storage is cleared every 24 hours.

Source
VMware Carbon Black: Why do the docs use names I do not recognise?

The product has been renamed repeatedly. CB Defense is now Endpoint Standard, CB ThreatHunter is Enterprise EDR and CB LiveOps is Audit and Remediation. Older community answers and runbooks still use the previous names.

PartyKit: What is PartyKit's Commercial plan?

The Commercial plan is free but requires deploying to your own Cloudflare account. It includes custom domains, unlimited projects, and you pay only your Cloudflare usage costs.

Source
VMware Carbon Black: Does it replace my existing antivirus?

Yes on supported Windows, macOS and Linux versions, and running it alongside another antivirus is not recommended because the two agents contend for the same hooks. Check your compliance requirements, as some auditors still ask for a named antivirus product.

PartyKit: Can I upgrade from Individual to Commercial plan?

Yes, both plans are free but offer different feature sets. The Commercial plan removes project restrictions but requires managing your own Cloudflare infrastructure.

Source
VMware Carbon Black: Do I need a full-time analyst to run it?

To get value from Enterprise EDR, effectively yes. The prevention tier can run with part-time attention, but the hunting and recording capability is only worth its cost if somebody is querying it, which is why many customers buy it through an MDR provider.

VMware Carbon Black: How is it licensed?

Per endpoint, per year, with the capability tier determining the rate and workload and container protection priced separately. Extended EDR data retention is an additional line item.

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