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Cybersecurity · head to head

Cosign vs Tyler Technologies

Cosign logo

Cosign

Cybersecurity

Signs and verifies container images and artifacts, with or without managing keys

From
Free
Free plan
Yes
Full reviewWebsite
Tyler Technologies logo

Tyler Technologies

Government

Empowering the Public Sector

From
$2000/month
Free plan
No
Full reviewWebsite

The short version

  • Only Cosign has a free tier, so it costs nothing to try first.
  • They diverge on capability: Cosign covers Keyless signing, Tyler Technologies covers Financial Management.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cosign and Tyler Technologies actually diverge.

Attributes where Cosign and Tyler Technologies differ
AttributeCosignTyler Technologies
Starting priceFree$2000/month
Pricing modelOpen source, no licence feesubscription
Free tierYesNo
PlatformsmacOS, Linux, Windows, DockerWeb, Desktop, Ios, Android
CategoryCybersecurityGovernment
FoundedUnknown1966

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 Cosign

  • Keyless signing
  • Key and KMS signing
  • Registry-native storage
  • In-toto attestations
  • Offline verification
  • Trusted root and signing config

Only in Tyler Technologies

  • Financial Management
  • Courts & Justice
  • Public Safety
  • Appraisal & Tax
  • School Solutions
  • AWS GovCloud
  • Microsoft Azure
  • Oracle

What people use each for

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

Cosign

  • Signing container images in a build pipeline without managing long-lived private keysnot Tyler Technologies
  • Attaching a signed bill of materials to a release so consumers can verify its provenancenot Tyler Technologies
  • Meeting a customer or regulatory requirement for signed artifactsnot Tyler Technologies
  • Verifying third-party images before they enter an internal registrynot Tyler Technologies

Tyler Technologies

  • Citizen Servicesnot Cosign
  • Records Managementnot Cosign
  • Public Safetynot Cosign
  • Civic Engagementnot Cosign

Where each one falls short

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

Cosign

  • Keyless signing inherits every weakness of the identity provider behind it. Sigstore’s own threat model states that if an identity provider is compromised, Sigstore will issue certificates to those identities, so a compromised account produces perfectly valid signatures.
  • A signature proves who signed, never whether they should have. The documentation is explicit that Sigstore cannot determine authorisation, so every consumer must write and maintain their own identity and issuer policy or verification means nothing.
  • Nothing is enforced without an admission controller. Signing changes what you can prove, not what runs, and the official policy controller has a small maintainer base for a component sitting in a cluster admission path.
  • Upgrades break pipelines. Version 3 changed defaults, version 4 is announced as removing legacy functionality and roughly half the command line flags, and two official client libraries still lacked support for the new log format as of mid 2026.
  • Signatures do not expire. An artifact signed before a maintainer account was compromised and one signed after are indistinguishable unless somebody is actively monitoring the transparency log, and almost nobody is.

Tyler Technologies

Nothing recorded yet. See the Tyler Technologies review.

Pricing, plan by plan

Cosign

Free
  • CosignFree
    • Apache-2.0
    • Public Sigstore infrastructure free to use
    • No usage limits published

Tyler Technologies

$2000/month
  • Enterprise$2000/month
    • ERP Suite
    • Courts & Justice
    • Public Safety

Which should you pick?

Choose Cosign if

  • You need keyless signing.
  • You want to start without paying.
  • You work on macOS, Linux, Windows, Docker.
  • You also want key and kms signing.
Cosign review

Choose Tyler Technologies if

  • You need financial management.
  • You work on Web, Desktop, Ios, Android.
  • You also want courts & justice.
Tyler Technologies review

Questions people ask

Is Cosign or Tyler Technologies better?
Neither clearly leads. Cosign starts at Free and Tyler Technologies at $2000/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cosign or Tyler Technologies?
Cosign has a free tier; the other does not. Paid plans start at Free for Cosign and $2000/month for Tyler Technologies.
Does Cosign or Tyler Technologies run on more platforms?
Cosign runs on macOS, Linux, Windows, Docker. Tyler Technologies runs on Web, Desktop, Ios, Android.
Can I use Cosign for free?
Yes. Cosign has a free tier, so you can try it without paying. Tyler Technologies starts at $2000/month.
What is Cosign best used for?
Cosign is most often used for signing container images in a build pipeline without managing long-lived private keys, attaching a signed bill of materials to a release so consumers can verify its provenance, meeting a customer or regulatory requirement for signed artifacts, verifying third-party images before they enter an internal registry. Of those, signing container images in a build pipeline without managing long-lived private keys and attaching a signed bill of materials to a release so consumers can verify its provenance are not what Tyler Technologies is typically brought in for.
What can Cosign do that Tyler Technologies cannot?
Cosign covers Keyless signing, Key and KMS signing, Registry-native storage, In-toto attestations. Tyler Technologies covers Financial Management, Courts & Justice, Public Safety, Appraisal & Tax.

Answered from the vendors’ own pages

Cosign: Does Cosign tell me if an image is vulnerable?

No. It has no vulnerability knowledge whatsoever. It can carry an SBOM as a signed attestation but never reads it. Pair it with a scanner.

Tyler Technologies: What are Tyler Technologies pricing options?

Tyler Technologies does not publish pricing on publicly accessible web pages. Pricing information must be requested directly from Tyler Technologies sales.

Source
Cosign: Is signing alone enough?

No. Verification is a command somebody runs. Without an admission controller enforcing it, an unsigned image still runs.

Tyler Technologies: Does Tyler Technologies offer a free trial?

Trial or demo availability information is not published on the main website. Contact Tyler Technologies sales to inquire about evaluation programs.

Source
Cosign: What does a bare cosign verify actually prove?

Very little. Without a pinned certificate identity and OIDC issuer, it accepts a valid signature from any identity at all.

Cosign: What is the risk of keyless signing?

Your OIDC provider becomes the root of trust. Compromise of that account yields genuine, verifiable signatures, so account security is the control that matters.

Cosign: Should we expect breaking changes?

Yes. Version 4 is announced to remove roughly half the flags, and a post-quantum migration is named as a further breaking change after that.

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