SignServer
SignServer is a server-side platform for managing signing keys and digitally signing code, documents, and timestamps.
What SignServer is
SignServer is a server-side platform for managing signing keys and digitally signing code, documents, and timestamps. It supports multiple signing workflows in one installation, including container and firmware signing for IoT and DevOps uses. Teams can connect it to CI/CD pipelines, firmware build processes, document workflow engines, identity platforms, and other applications through standard interfaces. Community Edition is available as a Docker container, Helm chart, source code, or release from GitHub, and is also listed on SourceForge. Interfaces include SOAP, HTTP, REST, and the SignClient command-line tool, although Community REST does not include all endpoints. Community is free under LGPL V2.1 or later and is intended for learning, testing, and prototyping, not production. The maker says it lacks production capabilities such as audit, compliance, SLA, high availability, and security features. Enterprise offers professional support with an SLA, security updates, and maintenance. The maker recommends Hardware Security Modules for signing-key storage; secure-file storage is described as suitable only for testing and prototypes.
Good
- Supports code, container, firmware, document, and timestamp signing.
- Integrates with CI/CD and document workflows.
- Community can be deployed as a container or Helm chart.
- Supports HSM key protection and trusted timestamping.
- Free Community edition.
Watch out
- Community is not intended for production workloads.
- Community lacks audit, compliance, SLA, and high availability capabilities.
- Community REST does not include all endpoints.
- Secure-file key storage is for testing and prototyping only.
Who it suits
SignServer suits teams that need centrally managed signing across code, documents, containers, firmware, or timestamps. Community is aimed at learning, testing, and prototyping; production users may consider Enterprise.
Verdict
SignServer centralizes signing workflows and offers several deployment and integration routes. Community is explicitly limited to non-production use, so production needs call for assessing the Enterprise offering.
Plans and prices
From SignServer's own pricing page, checked 30 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| SignServer Community | Free | Basic code, document, container signing and timestamping · source code or container deployment · intended for learning, testing, and prototyping |
| SignServer Enterprise Cloud trial | Free | Enterprise edition functionality · AWS or Azure cloud deployment · 30-day trial on AWS or Azure marketplaces |
The facts
Each one read from SignServer's own pages, with the date it was checked.
What it does
- Automation
- SignServer can integrate with CI/CD pipelines, firmware build processes, document workflow engines, identity platforms, and other business applications through standard interfaces.checked 30 Sep 2026
- Centralized signing
- It centrally stores and manages signing keys and supports multiple signing use cases in one installation.checked 30 Sep 2026
- Community production limit
- Community Edition is not intended for production and lacks audit, compliance, SLA, high availability, and security capabilities needed for production workloads.checked 30 Sep 2026
- Deployment
- Community can be downloaded as a Docker container, Helm chart, source code, or release from GitHub, and is also listed on SourceForge.checked 30 Sep 2026
- Download verification
- The maker recommends verifying downloads with SHA-512 hashes from GitHub or OpenPGP signatures from SignServer Keys.checked 30 Sep 2026
- Enterprise support
- Enterprise offers professional support with an SLA, timely security updates, and maintenance.checked 30 Sep 2026
- History
- The first version of SignServer was released by PrimeKey in 2005, and the Enterprise edition was released in 2012.checked 30 Sep 2026
- Integrations
- The comparison lists integration and secure automatic certificate renewal with CA/EJBCA, and the maker describes integration with third-party applications through standard interfaces.checked 30 Sep 2026
- Interfaces
- The edition comparison lists SOAP, HTTP, REST, and the SignClient command-line interface; Community REST support does not include all endpoints.checked 30 Sep 2026
- Key protection
- The maker recommends storing signing keys in a Hardware Security Module; secure-file storage is described as suitable only for testing and prototyping.checked 30 Sep 2026
- License
- SignServer Community is released under LGPL V2.1 or later.checked 30 Sep 2026
- Purpose
- SignServer is a server-side platform for digitally signing code, documents, and timestamps.checked 30 Sep 2026
- Signing formats
- The edition comparison lists code signing for CMS, OpenPGP, Debian, and Java in Community, with Microsoft and Android code signing listed for Enterprise and Cloud.checked 30 Sep 2026
- Signing use cases
- The site lists code, container, firmware, document, and timestamp signing, including IoT and DevOps use cases.checked 30 Sep 2026
The company
- Founded
- 2005checked 28 Sep 2026
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