StackStorm

StackStorm is a free, open-source platform for integrating services and automating actions in response to events. Rules connect triggers to actions or workflows, and workflows combine actions into multi-step automations. Sensors and actions link external systems; examples include webhooks, SSH, REST calls, OpenStack, Docker, Puppet, Sensu, and JIRA. StackStorm Exchange provides ready-made integration packs, and users can create and share their own. The platform records action executions with their triggering context and results, and audit logs can integrate with Logstash, Splunk, statsd, and syslog. Administrators can use role-based access control to limit users’ access and operations. StackStorm provides a Web UI, CLI client, REST API, and Python client bindings. It is self-hosted and distributed as Linux RPMs and Debs and as Docker images; documentation also describes Vagrant/OVA, Ansible, Puppet, and Kubernetes deployment options. It supports 64-bit Ubuntu and RHEL, Rocky Linux, or CentOS, but does not officially support other Linux distributions, Windows, or Apple OSX.

StackStorm offers event-driven automation with integrations, audit trails, and access controls. Check its supported Linux distributions before planning a deployment.

StackStorm suits teams that want to automate actions across connected services, including remediation, deployment, ChatOps, or security-response workflows. It is intended for self-hosted deployments on the listed Linux distributions.

Overview

StackStorm is an open-source platform for connecting events across services to automated actions and workflows. It suits technical teams that can operate their own Linux deployment and want to coordinate remediation or other event-driven responses. Its strengths are extensible integrations and execution records; its main drawback is a tightly bounded range of supported Linux distributions.

Key features

Rules map triggers to actions or workflows, while workflows combine actions into multi-step automations. This model fits responses that need to move through several tools, including remediation, continuous deployment, ChatOps and automated security response. It rewards teams willing to define and maintain their own automation logic rather than those seeking a turnkey hosted service.

Sensors and actions connect external systems through webhooks, SSH and REST calls, as well as integrations such as OpenStack, Docker, Puppet, Sensu and JIRA. Ready-made packs in StackStorm Exchange can speed up connections, and teams can create and share their own packs when they need to extend coverage. That flexibility is valuable for varied toolchains, though uncommon integrations may require additional pack work.

StackStorm records each action execution with its triggering context and results, and audit logs can integrate with Logstash, Splunk, statsd and syslog. This gives operations teams a way to follow what an automation did and route records into logging infrastructure. Role-based access control lets administrators limit users’ access and operations, a useful safeguard for shared automation environments; it has been included in StackStorm Open Source since version 3.4.

The interface options include a Web UI, CLI client, REST API and Python client bindings. The project also provides a private mailing list for vulnerability reports and says it acknowledges reports within 48 hours or less.

Pricing

StackStorm Open Source costs free and is free and open source. The project offers no paid products, so there is no paid tier to add services or support. It is a strong fit for teams able to deploy and operate the platform themselves; organizations that need a paid, managed offering should look elsewhere.

Platforms

StackStorm is self-hosted and distributed as Linux RPMs, Debs and Docker images. Deployment documentation also covers Vagrant/OVA, Ansible, Puppet and Kubernetes. The supported operating systems are 64-bit Ubuntu, RHEL, Rocky Linux and CentOS; other Linux distributions are unsupported. Windows and Apple OSX have no official support, so teams committed to those systems should choose another platform.

Alongside the Web UI, users can work through a CLI, a full REST API or Python client bindings. This gives technical teams several ways to integrate StackStorm into existing processes, but does not change the Linux deployment requirement.

Who it's for

StackStorm is best for infrastructure and security teams that want self-hosted, event-driven automation across connected services, particularly when they need multi-step workflows, execution traceability and control over user permissions. It is less appropriate for teams that cannot use one of its supported Linux distributions or do not want to manage their own deployment.

Pros and cons

• Pro: Rules and multi-step workflows support event-driven responses across services, including remediation and security use cases.
• Pro: Exchange packs, custom packs and multiple integration methods let teams adapt connections to their toolchains.
• Pro: Execution context, results and integrations with common logging systems help preserve an operational record.
• Con: Support is limited to specific 64-bit Linux distributions, excluding Windows, OSX and other Linux distributions.
• Con: Self-hosting and the absence of paid products leave deployment and ongoing operation to the adopting team.

Alternatives

Choose Shuffle if a free plan with a hard limit of 2,000 app runs per month, three tenants and one location suits your needs; it also covers Linux, API, self-hosted and web platforms. Tines may fit teams that want a hosted option and can work within its free edition’s three live workflows; its platform coverage includes API, self-hosted and web. Rundeck is worth considering when Windows or macOS support matters, or when a free trial is useful; its Community plan is free for small teams and requires registration.

Tracecat offers a self-hosted open-source plan with unlimited workflows, cases and agents, and monthly executions managed by the user. Azure Automation is an alternative for Windows and Linux environments, with 500 minutes per month included for process automation job run time. Tanium Deploy is a paid option for teams with a Tanium license that includes Deploy and Tanium Core Platform servers. Palo Alto Networks Cortex Cloud API Security is another paid API-security option.

Parachute is an alternative with a free plan and a 30-day trial; its Starter plan costs $49 a month, billed monthly, for one workspace, 15 runbooks, unlimited alerts and three users.

Readers comparing adjacent categories can also browse Runbook Automation Software, IT Documentation Software, Workload Automation Software, IT Orchestration Software, Cloud Automation Software and Cloud Orchestration Software.

Verdict

Choose StackStorm if your team wants free, self-hosted event-driven automation with extensible integrations, audit records and access controls—and can deploy it on a supported Linux distribution. Its clear limit is platform reach: teams that need Windows, macOS, unsupported Linux distributions or a managed paid product should look elsewhere.