---
id: sigmatools
version: "0.23.1"
license: LGPLv3
license_treatment: copyleft
maintenance: active
---

# sigmatools — Tools for the Generic Signature Format for SIEM Systems

License: copyleft · Maintenance: active · Downloads: 77.4K/mo

## What it is and what it does

Sigmatools is a Python package and command-line tool for working with Sigma, a generic, open signature format designed to describe log-based security detections in a standardized, vendor-agnostic way. It provides utilities to parse, validate, and convert Sigma detection rules into queries compatible with various SIEM platforms and log analysis tools. The package is built on top of a community-maintained repository of more than 3000 peer-reviewed detection rules covering generic threats, threat hunting, emerging threats, and compliance violations.

The primary use case is enabling security teams to share and reuse detection logic across different tooling ecosystems without rewriting rules for each platform. Sigmatools handles the conversion layer, allowing a single rule to be deployed to multiple SIEMs or integrated into custom detection pipelines. It has been in active development since 2017-12-08 and is classified as Production/Stable, with support for Python 3.8 and later and no external runtime dependencies.

Use it for:

- Convert Sigma detection rules to platform-specific query syntax for deployment in your SIEM
- Validate and parse Sigma YAML rules as part of a detection engineering workflow
- Leverage the community's 3000+ peer-reviewed Sigma rules for threat detection
- Integrate Sigma rule conversion into a security tool to support vendor-agnostic rule ingestion
- Apply threat-hunting rules to log data across multiple log sources

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Sigmatools provides command-line utilities and a Python library for working with Sigma detection rules—a vendor-agnostic format for describing log-based security detections.

Yes, if you work with log-based detection rules or operate multiple SIEM platforms. Sigmatools is actively maintained, production-stable, and solves a real problem—standardizing detection logic across vendor silos. The LGPLv3 license is permissive for internal use and integration. High install friction is offset by zero runtime dependencies and a mature codebase. Not worth installing if you only use a single SIEM or have no need for rule conversion.

## Install

pip install sigmatools
uv add sigmatools
poetry add sigmatools

## Installing sigmatools

Before you install: High install friction with no runtime dependencies listed. Package is actively maintained with recent commits (2026-08-13) and has been in production use since 2017-12-08. Supports Python 3.8 and later.

License in practice: LGPLv3 is a copyleft license; any derivative work or modification must also be released under LGPLv3. Permissive for use but restricts proprietary redistribution of modified versions.

Quickstart:

pip install sigmatools==0.23.1

import sigmatools
# Use sigmatools CLI or library for rule conversion and validation

Requires Python ~=3.8; no compiled dependencies but primarily a CLI tool and library.

Verify before relying:

- Whether the package includes the full rule repository or only conversion tooling
- Performance characteristics when processing large rule sets
- Specific SIEM platform compatibility beyond those mentioned in description

## Package facts

- License: LGPLv3 (copyleft)
- Python support: supports_current
- Install friction: high
- Maintenance: active
- Downloads: 77.4K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

sigma rule conversion, siem detection rules, log analysis signatures, vendor-agnostic detection format, sigma rule tools, security rule framework, log event detection, siem-detection, rule-conversion, threat-hunting

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