Developer Tools · head to head
Keycloak vs Tuta

Keycloak
Developer Tools
Open-source identity and access management server.
- From
- Free
- Rated
- -

Tuta
Cybersecurity
Secure, green and ad-free. Email to feel good about.
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Keycloak requires self-hosted deployment and operational expertise to install, configure and maintain; Tuta individual plan pricing only shown in EUR; no USD conversion provided on site
Where they differ
Only the attributes on which Keycloak and Tuta actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
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 Tuta
- Companies with existing LDAP/Active Directory systems needing federated authenticationnot Tuta
- Open-source projects and communities requiring free IAM without licensing costsnot Tuta
- Enterprises building custom identity workflows requiring fine-grained authorisationnot Tuta
- Teams with sufficient operational expertise to manage infrastructurenot Tuta
Tuta
- Private encrypted email communicationnot Keycloak
- Users valuing end-to-end encryption and zero-knowledge architecturenot Keycloak
- Individuals seeking open-source email clientsnot Keycloak
- Organizations requiring quantum-resistant encryptionnot 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
Tuta
- Individual plan pricing only shown in EUR; no USD conversion provided on site
- Family plan pricing separate (EUR 3 or EUR 8 per additional user) not included in main pricing
- Shared mailboxes require additional EUR 3-8 monthly charges
Pricing, plan by plan
Keycloak
Free- Open-sourceFree
- Full platform functionality
- Self-hosted deployment
- Community support
Tuta
Free- Free PlanFree
- 1 GB storage
- 1 calendar
- 3 labels
- Revolutionary Plan$3/month
- 20 GB storage
- 15 email aliases
- 3 custom domains
- Legend Plan$8/month
- 500 GB storage
- 30 email aliases
- 10 custom domains
Which should you pick?
Choose Keycloak if
- You want to start without paying.
- You work on Self-hosted, Docker, Kubernetes, Linux, Windows, API.
Questions people ask
- Is Keycloak or Tuta better?
- Neither clearly leads. Keycloak starts at Free and Tuta at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Keycloak or Tuta?
- Keycloak starts at Free and Tuta at Free.
- Does Keycloak or Tuta run on more platforms?
- Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API. Tuta runs on Web.
- 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 Tuta is typically brought in for.
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.
SourceTuta: How much does Tuta email cost?
Tuta offers a free plan with 1 GB storage. Paid plans are EUR 3/month (Revolutionary) with 20 GB storage and 15 email aliases, and EUR 8/month (Legend) with 500 GB storage and 30 email aliases. Family plan add-ons cost EUR 3-8 per additional mailbox member monthly.
SourceKeycloak: 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.
SourceTuta: Is there a free email plan with Tuta?
Yes, Tuta's free plan includes 1 GB of storage, one calendar, three labels, and full end-to-end encryption security features with no custom domains or email aliases.
SourceKeycloak: Is Keycloak free?
Yes. Keycloak is fully open-source and free to deploy and use. No licensing fees are required.
SourceTuta: What are the limits on Tuta's free email plan?
The free plan provides 1 GB storage, access to one calendar, three labels maximum, and no support for custom domains or additional email aliases.
SourceRelated pages
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- Tuta vs ESLint
- Tuta vs pnpm
- Tuta vs Turborepo
- Tuta vs GitHub Copilot
- Tuta vs Penpot
- Tuta vs Rust
- Tuta vs CLion
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- Tuta vs IAR Embedded Workbench
- Tuta vs GNU Emacs
- Tuta vs Keil MDK
- Tuta vs Vite
- Tuta vs Bazel
- Tuta vs CodeSandbox
- Tuta vs Eclipse IDE
- Tuta vs Moonrepo
- Tuta vs Nx Cloud
- Tuta vs 1Password
- Tuta vs Bitdefender Total Security
- Tuta vs Norton 360
- Tuta vs LastPass
- Tuta vs Snyk
- Tuta vs Bitwarden
- Tuta vs Brave Browser
- Tuta vs Clerk
- Tuta vs CrowdStrike Falcon
- Tuta vs Kaspersky Total Security
- Tuta vs Mullvad VPN
- Tuta vs OneTrust
- Tuta vs Private Internet Access
- Tuta vs Proton Mail
- Tuta vs Akeyless
- Tuta vs Doppler
- Tuta vs Frontegg
- Tuta vs Infisical
