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Best Cosign Alternatives in 2026

Updated

20 platforms from code signing software ranked against Cosign on the same published basis.

  1. 1
    SignServer Free plan apiLinuxMacself-hostedWeb Free7.9
    Cosign vs SignServer
  2. 2
    SignPath Free plan apiLinuxMacself-hostedWeb Free7.3
    Cosign vs SignPath
  3. 3
    AWS Signer Free plan apiLinuxMacWebWin Free7.2
    Cosign vs AWS Signer
  4. 5
    Sigstore Free plan apiLinuxMacself-hostedWin Free7.1
    Cosign vs Sigstore
  5. 6
    Keyfactor Platform Free trial apiself-hostedWeb 7.0
    Cosign vs Keyfactor Platform
  6. 7
    SignPath Foundation Free plan apiWeb Free7.0
    Cosign vs SignPath Foundation
  7. 8
    DigiCert Software Trust Manager apiLinuxMacWebWin 6.8
    Cosign vs DigiCert Software Trust Manager
  8. 9
    LAAVAT PKI and Signing Platform Free trial apiself-hostedWeb 6.7
    Cosign vs LAAVAT PKI and Signing Platform
  9. 10
    Red Hat Trusted Artifact Signer LinuxMacself-hostedWebWin 6.7
    Cosign vs Red Hat Trusted Artifact Signer
  10. 11
    SSL.com Certificate Lifecycle Management apiWeb 6.5
    Cosign vs SSL.com Certificate Lifecycle Management
  11. 12
    Bamboo Deploy apiLinuxMacWebWin $15/mo6.4
    Cosign vs Bamboo Deploy
  12. 13
    ComSignTrust Secure Code Signing Platform (ASCS) apiWeb 6.4
    Cosign vs ComSignTrust Secure Code Signing Platform (ASCS)
  13. 14
    GoGetSSL Cloud Code Signing MacWebWin $35.42/mo6.2
    Cosign vs GoGetSSL Cloud Code Signing
  14. 15
    Signo apiLinuxself-hosted 6.2
    Cosign vs Signo
  15. 16
    Code Signing Key Management Server (CSKMS) self-hosted 6.1
    Cosign vs Code Signing Key Management Server (CSKMS)
  16. 17
    Notation WinMacLinux 5.9
    Cosign vs Notation
  17. 18
    Aujas Automated Code Signing Platform Web 5.8
    Cosign vs Aujas Automated Code Signing Platform
  18. 19
    OpenPubkey WinMacLinux 5.8
    Cosign vs OpenPubkey
  19. 20
    The Update Framework 5.8
    Cosign vs The Update Framework
  20. 21
    CodeLocker 5.7
    Cosign vs CodeLocker

Cosign alternatives compared

#PlatformScoreFree planFromRuns on
1SignServer7.9Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
2SignPath7.3Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
3AWS Signer7.2Free planFreeAPI, Linux, Mac, Web, Windows
5Sigstore7.1Free planFreeAPI, Linux, Mac, self-hosted, Windows
6Keyfactor Platform7.0No—API, self-hosted, Web
7SignPath Foundation7.0Free planFreeAPI, Web
8DigiCert Software Trust Manager6.8No—API, Linux, Mac, Web, Windows
9LAAVAT PKI and Signing Platform6.7No—API, self-hosted, Web
10Red Hat Trusted Artifact Signer6.7No—Linux, Mac, self-hosted, Web, Windows
11SSL.com Certificate Lifecycle Management6.5No—API, Web
12Bamboo Deploy6.4No$15/moAPI, Linux, Mac, Web, Windows
13ComSignTrust Secure Code Signing Platform (ASCS)6.4No—API, Web
14GoGetSSL Cloud Code Signing6.2No$35.42/moMac, Web, Windows
15Signo6.2No—API, Linux, self-hosted
16Code Signing Key Management Server (CSKMS)6.1No—self-hosted
17Notation5.9No—Windows, Mac, Linux
18Aujas Automated Code Signing Platform5.8No—Web
19OpenPubkey5.8No—Windows, Mac, Linux
20The Update Framework5.8No——
21CodeLocker5.7No——
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Questions about Cosign alternatives

What is the best alternative to Cosign?

SignServer, number 1 in code signing software with a score of 7.9 out of 10. The others here: SignPath, AWS Signer, Sigstore and 16 more.

What is the best free alternative to Cosign?

SignServer is the best-ranked alternative with a free plan. 5 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.