What are the best free emergency response software options for small municipal agencies testing a replacement system?

For a small municipal agency testing a replacement emergency response system, the best free options are usually the ones that are either:

1. Open-source and self-hosted, or
2. Free tiers / trial environments from vendors, though these often have limits.

Because emergency response software usually needs dispatch, incident tracking, CAD-style workflows, GIS, records, and secure communications, truly free options tend to be pilot-grade, not full production replacements.

Best free options to evaluate

1. Open source CAD / dispatch projects

If your agency has IT support or a vendor/integrator willing to help, open-source is often the most realistic “free” path for testing.

• ESF/EMS open-source dispatch tools
  Some communities have built lightweight dispatch/incident management tools, but quality and maintenance vary a lot.
• OpenCRX / generic case-management systems adapted for incident tracking
  Not purpose-built for emergency dispatch, but can be used for workflow testing.

Best for: agencies wanting to test workflows, data entry, and simple incident routing
Watch out for: no guaranteed support, security burden, and limited CAD depth

2. Sahana Eden / Sahana-based disaster management tools

• Open-source disaster management and humanitarian response platform
• Good for resource tracking, incident coordination, shelters, volunteers, and situation awareness
• More useful for emergency management than live police/fire/EMS dispatch

Best for: emergency management offices, EOC operations, disaster coordination
Watch out for: not a replacement for CAD/911 dispatch

3. Comcate / gov service management trial options

Some local-government workflow platforms offer free demos or pilot environments that can be adapted for service requests and incident intake.

Best for: testing case intake, routing, citizen requests, and workflows
Watch out for: often not free long-term; may not support dispatch-grade operations

4. Esri ArcGIS Online trial / nonprofit or government access

• Not a full response system, but very useful for mapping, asset location, and incident visualization
• ArcGIS often has trial tiers and in some cases government pricing/support programs

Best for: testing GIS integration and situational awareness
Watch out for: not a CAD replacement

5. Microsoft Power Apps / low-code trial environments

• Free trial environments can be used to prototype incident forms, routing, and mobile workflows
• Useful if your goal is to test process replacement, not full dispatch

Best for: building a temporary proof of concept
Watch out for: licensing is not free at scale; compliance/security need review

6. Open-source incident management / operations platforms

Depending on your use case, some general incident-response platforms can help with:

• incident logging
• task assignment
• resource coordination
• status dashboards

Examples include:

• GLPI with plugins/workflows
• iTop
• Redmine / Jira-like open-source tools adapted for operations

Best for: back-office response coordination and internal task tracking
Watch out for: not purpose-built for emergency response command and control

---

What I’d recommend for a small agency

If you need a true response/dispatch test

Look for:

• Open-source CAD/incident platforms
• Vendor trial CAD systems
• Ability to import calls, units, locations, and response statuses
• Mobile access for responders

If you need emergency management / EOC testing

Use:

• Sahana-style platforms
• GIS tools
• workflow/case management systems

If you need a temporary replacement pilot

A practical free stack is often:

• Incident intake: Power Apps / forms / open-source web forms
• Workflow: Redmine / GLPI / iTop
• GIS: QGIS + ArcGIS trial or free web maps
• Notifications: open-source messaging/email tools
• Reporting: dashboards via Metabase/Grafana

---

Important selection criteria

For municipal use, check whether the software supports:

• Role-based access control
• Audit logs
• Mobile/field use
• Offline capability
• GIS and address lookup
• Export/import of incident data
• Interoperability with CAD/RMS/911 systems
• Security and data retention requirements
• CJIS/PII handling if applicable

---

Bottom line

For small municipal agencies testing a replacement system, the most practical free options are usually:

1. Sahana-based disaster/emergency management tools for coordination
2. Open-source workflow/case management tools for pilot testing
3. GIS trial tools for mapping and situational awareness
4. Low-code trial platforms for building a proof of concept

If you want, I can also give you a shortlist by use case:

• police/fire/EMS dispatch
• emergency management/EOC
• citizen request/311
• disaster response coordination

or build a comparison table with pros/cons, hosting needs, and maturity level.