Is Cosign or Matomo better?

Neither clearly leads. Cosign starts at Free and Matomo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Cosign or Matomo?

Cosign starts at Free and Matomo at Free.

Does Cosign or Matomo run on more platforms?

Cosign runs on macOS, Linux, Windows, Docker. Matomo runs on Web, On-premise.

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 Matomo is typically brought in for.

What can Cosign do that Matomo cannot?

Cosign covers Keyless signing, Key and KMS signing, Registry-native storage, In-toto attestations. Matomo covers Web analytics, Real-time reports, Custom dimensions, Goal tracking.

Cybersecurity · head to head

Cosign vs Matomo

Cosign

Cybersecurity

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

From: Free
Rated: -

Full review Website

Matomo

Marketing

Privacy-focused web analytics

From: Free
Rated: -

Full review Website

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.; Matomo the self hosted Community Edition is free but excludes A/B testing, heatmaps, session recording, cohorts, crash analytics and multi channel attribution, all of which are paid plugins
They diverge on capability: Cosign covers Keyless signing, Matomo covers Web analytics.
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cosign and Matomo actually diverge.

Attributes where Cosign and Matomo differ
Attribute	Cosign	Matomo
Pricing model	Open source, no licence fee	freemium
Platforms	macOS, Linux, Windows, Docker	Web, On-premise
Category	Cybersecurity	Marketing
Founded	Unknown	2007

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 Cosign

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

Only in Matomo

Web analytics
Real-time reports
Custom dimensions
Goal tracking
E-commerce tracking
Google Search Console
Privacy-focused
Cloud deployment

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

Matomo

Privacy focused web analytics as an alternative to Google Analyticsnot Cosign
Self hosting analytics so visitor data stays on owned infrastructurenot 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.

Matomo

The self hosted Community Edition is free but excludes A/B testing, heatmaps, session recording, cohorts, crash analytics and multi channel attribution, all of which are paid plugins
Premium plugin bundles for self hosted installs run from 275 EUR a month for 4 users to 3,400 EUR for 50
Cloud pricing is banded by monthly hits, and anything above 10 million requires contacting sales
Self hosting places all operation and upgrades on the operator while still needing paid plugins for the advanced features

Pricing, plan by plan

Cosign

Free

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

Matomo

Free

Self-hostedFree
- Open-source
- Full analytics
- Privacy-focused

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 Matomo if

You need web analytics.
You want to start without paying.
You work on Web, On-premise.
You also want real-time reports.

Matomo review

Questions people ask

Is Cosign or Matomo better?: Neither clearly leads. Cosign starts at Free and Matomo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cosign or Matomo?: Cosign starts at Free and Matomo at Free.
Does Cosign or Matomo run on more platforms?: Cosign runs on macOS, Linux, Windows, Docker. Matomo runs on Web, On-premise.
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 Matomo is typically brought in for.
What can Cosign do that Matomo cannot?: Cosign covers Keyless signing, Key and KMS signing, Registry-native storage, In-toto attestations. Matomo covers Web analytics, Real-time reports, Custom dimensions, Goal tracking.

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.

Matomo: How much does Matomo cost?

Matomo Cloud starts at EUR 29 per month for the Starter plan, which covers 50,000 hits per month. Matomo On-Premise has a free Community edition, with paid bundles from EUR 275 per month for up to 5M hits and 4 users.

Source

Cosign: Is signing alone enough?

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

Matomo: Is Matomo free?

The On-Premise Community edition is free forever with unlimited users and hits, supported through the forum only. Matomo Cloud is a paid service, though a free trial with access to all core features is offered.

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.

Matomo: What is the difference between Matomo Cloud and On-Premise?

Cloud plans include hosting, maintenance, automatic updates and daily backups, priced by monthly hits from EUR 29. On-Premise is self-hosted, free in its Community edition, with paid bundles adding support and higher user counts.

Source

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.

Matomo: How many hits do the Matomo On-Premise bundles cover?

The Team bundle covers up to 5M hits per month and 4 users at EUR 275 per month. Business covers up to 30M hits and 20 users at EUR 1,450. Enterprise covers up to 100M hits and 50 users at EUR 3,400.

Source

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.

Cosign vs Matomo

Cosign

Matomo

The short version

Where they differ

What each one covers

Only in Cosign

Only in Matomo

What people use each for

Cosign

Matomo

Where each one falls short

Cosign

Matomo

Pricing, plan by plan

Cosign

Matomo

Which should you pick?

Choose Cosign if

Choose Matomo if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Cosign

More on Matomo

Keep looking

Other head to heads