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Cybersecurity · head to head

Cosign vs Enpass

Cosign logo

Cosign

Cybersecurity

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

From
Free
Rated
-
Full reviewWebsite
Enpass logo

Enpass

Cybersecurity

Offline-first password manager that stores your vault locally instead of the cloud

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: 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.; Enpass no built-in cloud sync of its own, so users must configure a third-party storage provider for multi-device sync.
  • They diverge on capability: Cosign covers Keyless signing, Enpass covers Offline vaults.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cosign and Enpass actually diverge.

Attributes where Cosign and Enpass differ
AttributeCosignEnpass
Pricing modelOpen source, no licence feefreemium
PlatformsmacOS, Linux, Windows, Dockerweb, ios, android, windows, mac, linux

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Cybersecurity).

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 Enpass

  • Offline vaults
  • Bring-your-own-cloud sync
  • Autofill and password generator
  • Password audit
  • Business admin console
  • Cross-platform apps

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 Enpass
  • Attaching a signed bill of materials to a release so consumers can verify its provenancenot Enpass
  • Meeting a customer or regulatory requirement for signed artifactsnot Enpass
  • Verifying third-party images before they enter an internal registrynot Enpass

Enpass

  • Storing passwords without trusting a vendor's cloudnot Cosign
  • Syncing a vault via personal cloud storagenot Cosign
  • Managing a household's shared loginsnot Cosign
  • Provisioning team vaults with SSO-adjacent admin controlsnot 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.

Enpass

  • No built-in cloud sync of its own, so users must configure a third-party storage provider for multi-device sync.
  • Mobile Lite tier caps vaults at 25 items, pushing active mobile users toward a paid plan quickly.
  • Lacks dark web monitoring and breach alerting found in some competing password managers.
  • Team/business plan lacks a native SSO login option comparable to enterprise-grade competitors.

Pricing, plan by plan

Cosign

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

Enpass

Free
  • LiteFree
    • Up to 25 items on mobile
    • Unlimited items on desktop trial
    • No cloud sync
  • Individual$1.99/month
    • Unlimited items
    • Cloud sync via own storage provider
    • Unlimited devices
  • Family$2.99/month
    • Up to 6 members
    • Shared vaults
    • Unlimited devices per member
  • Business$1.99/month
    • Per-user pricing billed yearly
    • Admin console
    • Microsoft 365 / Google Workspace integration

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 Enpass if

  • You need offline vaults.
  • You want to start without paying.
  • You work on web, ios, android, windows, mac, linux.
  • You also want bring-your-own-cloud sync.
Enpass review

Questions people ask

Is Cosign or Enpass better?
Neither clearly leads. Cosign starts at Free and Enpass at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cosign or Enpass?
Cosign starts at Free and Enpass at Free.
Does Cosign or Enpass run on more platforms?
Cosign runs on macOS, Linux, Windows, Docker. Enpass runs on web, ios, android, windows, mac, linux.
Can I use Cosign for free?
Both have a free tier, so you can try either at no cost before committing.
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 Enpass is typically brought in for.
What can Cosign do that Enpass cannot?
Cosign covers Keyless signing, Key and KMS signing, Registry-native storage, In-toto attestations. Enpass covers Offline vaults, Bring-your-own-cloud sync, Autofill and password generator, Password audit.

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.

Cosign: Is signing alone enough?

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

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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