GRR Rapid Response

7.2easy start · #4 of 21
in Incident Response Software

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you workyes

Runs on api, Linux, Mac, self-hosted, Web, Windows.

GRR Rapid Response is ranked #4 of 21 in incident response software on The Geeks Club. It runs on API, Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

GRR Rapid Response plans and pricing

All plans

Open-source GRR Rapid Response Free Apache License 2.0 · self-hosted grr-doc.readthedocs.io · 4 Oct 2026

Compared on incident response software

Evidence tracking: Yes
API access: Yes
Deployment options: self_hosted

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The record

Purpose: GRR is an incident response framework focused on remote live forensics and remote investigation.
Architecture: It consists of client agents installed on target systems and server infrastructure that provides a web interface and API.
Forensic collection: The client supports file and Windows registry search and download, raw filesystem access, and collection of forensic artifacts.
Memory analysis: GRR supports live remote memory analysis using YARA.
Fleet hunts: Analysts can schedule hunts across fleets, including machines that are offline when a hunt is scheduled.
Integrations: The maker lists Colab, Splunk, BigQuery, Elasticsearch, Timesketch, Turbinia, Python API clients, and an HTTPS REST API with OpenAPI definitions.
Platforms: The maker says agents run on Debian, Ubuntu, and CentOS-based Linux distributions, macOS, and Windows.
Security: The maker says client-server communication is encrypted and secure against eavesdropping and impersonation.
Access controls: GRR supports approval-based access controls for sensitive actions such as starting client flows and downloading collected files.
Agent privileges: The client normally runs as root and can read system data, so the documentation says access to the GRR server should be treated as equivalent to root access on client machines.
License: GRR is open source under the Apache License 2.0.
Support: The FAQ says the core team does not offer a helpdesk, paid setup assistance, feeds, or consulting services.
Intended users: The FAQ says large enterprise deployments may require users to fix minor bugs, improve documentation, and actively engage with the project team.
Price from: Free

Where it ranks on The Geeks Club

Best Incident Response Software in 2026#4 of 21

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Sources

grr-doc.readthedocs.io/en/latest/what-is-grr.html· checked 4 Oct 2026
grr-response.com· checked 4 Oct 2026
grr-doc.readthedocs.io/en/latest/investigating-with-grr/securi· checked 4 Oct 2026
grr-doc.readthedocs.io/en/v3.4.7.1/maintaining-and-tuning/appr· checked 4 Oct 2026
grr-doc.readthedocs.io/en/latest/· checked 4 Oct 2026
grr-doc.readthedocs.io/en/latest/faq.html· checked 4 Oct 2026