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Developer Tools · head to head

Keycloak vs Vercel

Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Free plan
Yes
Full reviewWebsite
Vercel logo

Vercel

Technology

Develop. Preview. Ship.

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Keycloak requires self-hosted deployment and operational expertise to install, configure and maintain; Vercel usage-based pricing can spike unexpectedly during traffic surges or DDoS attacks
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Keycloak and Vercel actually diverge.

Attributes where Keycloak and Vercel differ
AttributeKeycloakVercel
Pricing modelopen-sourceUnknown
PlatformsSelf-hosted, Docker, Kubernetes, Linux, Windows, APIWeb, CLI
CategoryDeveloper ToolsTechnology
FoundedUnknown2015

Identical on both: starting price (Free), free tier (Yes), 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 Keycloak

Nothing recorded that Vercel does not also cover.

Only in Vercel

  • Instant deployments
  • Preview deployments
  • Serverless functions
  • Edge network
  • Automatic HTTPS
  • Custom domains
  • Git integration
  • Real-time collaboration

What people use each for

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

Keycloak

  • Organisations requiring self-hosted identity infrastructure for compliance or data residencynot Vercel
  • Companies with existing LDAP/Active Directory systems needing federated authenticationnot Vercel
  • Open-source projects and communities requiring free IAM without licensing costsnot Vercel
  • Enterprises building custom identity workflows requiring fine-grained authorisationnot Vercel
  • Teams with sufficient operational expertise to manage infrastructurenot Vercel

Vercel

  • Static sitesnot Keycloak
  • JAMstack applicationsnot Keycloak
  • Serverless APIsnot Keycloak
  • E-commerce sitesnot Keycloak
  • Documentation sitesnot Keycloak

Where each one falls short

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

Keycloak

  • Requires self-hosted deployment and operational expertise to install, configure and maintain
  • No managed cloud option provided by Red Hat; organisations must operate infrastructure themselves or use third-party distributions
  • Clustering and high-availability configurations require additional operational knowledge
  • Community support only; commercial support requires third-party vendors or distributions

Vercel

  • Usage-based pricing can spike unexpectedly during traffic surges or DDoS attacks
  • No spending limit controls or automatic shutoff mechanisms
  • Bandwidth costs ($0.15/GB) quickly accumulate for high-traffic applications

Pricing, plan by plan

Keycloak

Free
  • Open-sourceFree
    • Full platform functionality
    • Self-hosted deployment
    • Community support

Vercel

Free
  • HobbyFree
    • Non-commercial use only
    • 100GB bandwidth
    • Community support
  • Pro$20/user/month
    • Commercial use
    • 1TB bandwidth
    • $20 usage credit
  • Enterprise$undefined/custom
    • Custom infrastructure
    • Premium support
    • Compliance add-ons

Which should you pick?

Choose Keycloak if

  • You want to start without paying.
  • You work on Self-hosted, Docker, Kubernetes, Linux, Windows, API.
Keycloak review

Choose Vercel if

  • You need instant deployments.
  • You want to start without paying.
  • You work on Web, CLI.
  • You also want preview deployments.
Vercel review

Questions people ask

Is Keycloak or Vercel better?
Neither clearly leads. Keycloak starts at Free and Vercel at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keycloak or Vercel?
Keycloak starts at Free and Vercel at Free.
Does Keycloak or Vercel run on more platforms?
Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API. Vercel runs on Web, CLI.
Can I use Keycloak for free?
Both have a free tier, so you can try either at no cost before committing.
What is Keycloak best used for?
Keycloak is most often used for organisations requiring self-hosted identity infrastructure for compliance or data residency, companies with existing ldap/active directory systems needing federated authentication, open-source projects and communities requiring free iam without licensing costs, enterprises building custom identity workflows requiring fine-grained authorisation. Of those, organisations requiring self-hosted identity infrastructure for compliance or data residency and companies with existing ldap/active directory systems needing federated authentication are not what Vercel is typically brought in for.
What can Keycloak do that Vercel cannot?
Vercel covers Instant deployments, Preview deployments, Serverless functions, Edge network.

Answered from the vendors’ own pages

Keycloak: What protocols does Keycloak support?

Keycloak supports OpenID Connect, OAuth 2.0 and SAML 2.0 protocols for authentication and authorisation.

Source
Vercel: What are Vercel's main pricing tiers?

Vercel offers a free Hobby plan (non-commercial), Pro at $20/user/month with $20 usage credit, and Enterprise with custom pricing. Additional compliance add-ons cost $150-$350/month.

Source
Keycloak: Can Keycloak integrate with existing user directories?

Yes. Keycloak supports user federation with LDAP and Active Directory systems, allowing organisations to leverage existing user directories.

Source
Vercel: How much do bandwidth overages cost on Vercel?

Bandwidth overages cost $0.15/GB after plan limits are exceeded. Hobby plan includes 100GB free bandwidth; Pro includes 1TB. Usage-based billing can cause unexpected bills.

Source
Keycloak: Is Keycloak free?

Yes. Keycloak is fully open-source and free to deploy and use. No licensing fees are required.

Source
Vercel: Is Vercel free for Next.js projects?

Yes, Vercel offers a free Hobby plan for non-commercial Next.js projects with automatic deployments from git. Commercial projects require Pro plan or higher.

Source
Vercel: Can I set spending limits on Vercel?

No, Vercel does not offer hard spending caps or automatic shutoff. High traffic, DDoS attacks, or misconfigured functions can result in unexpectedly large bills.

Source
Vercel: What is included in the Pro plan?

Pro ($20/user/month) includes $20 usage credit, 1TB bandwidth, support for commercial projects, git integration, and preview deployments.

Source
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