# Core Security Cobalt Strike vs RedELK: side-by-side comparison (2026)

[Core Security Cobalt Strike](https://cybersectools.com/tools/core-security-cobalt-strike) is a commercial [red-team & adversary emulation](https://cybersectools.com/categories/offensive-security) solution by [Core Security](https://cybersectools.com/companies/core-security). [RedELK](https://cybersectools.com/tools/redelk) is a free [red-team & adversary emulation](https://cybersectools.com/categories/offensive-security) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Core Security Cobalt Strike | RedELK |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Red-Team & Adversary Emulation | Red-Team & Adversary Emulation |
| Verified | No | No |
| Deployment type | On-Premises | On-Premises |
| Company size fit | Mid-Market, Enterprise | Mid-Market, Enterprise |
| GitHub stars | – | 2,625 |
| Last commit | – | Nov 2025 |
| Company | Core Security | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Core Security Cobalt Strike | RedELK |
|---|---|---|
| Red Team | Yes | Yes |
| Post Exploitation | Yes | – |
| C2 | Yes | – |
| Evasion | Yes | – |
| Blue Team | – | Yes |
| Alerting | – | Yes |

### Core features

**Core Security Cobalt Strike**

6 features listed. Sign in on the page to see them.

**RedELK**

No features listed.

### Integrations

**Core Security Cobalt Strike**

2 integrations listed. Sign in on the page to see them.

**RedELK**

No integrations listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [RedELK](https://cybersectools.com/tools/redelk) fits if you need a free product and you want an open-source product.

## Core Security Cobalt Strike vs RedELK FAQ

Common questions when comparing Core Security Cobalt Strike vs RedELK for red-team & adversary emulation.

### What is the difference between Core Security Cobalt Strike and RedELK?

**Core Security Cobalt Strike**: Post-exploitation threat emulation platform for red team operations. Built by Core Security.

**RedELK**: RedELK is a SIEM tool designed for red teams to monitor and receive alerts about blue team detection activities during penetration testing engagements.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Core Security Cobalt Strike and RedELK?

**Core Security Cobalt Strike** is made by Core Security. **RedELK** is open-source with 2,625 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Core Security Cobalt Strike a good alternative to RedELK?

Often, yes. Core Security Cobalt Strike and RedELK are both Red-Team & Adversary Emulation products, and both cover Red Team. Key differences: Core Security Cobalt Strike is Commercial while RedELK is Free, RedELK is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Core Security Cobalt Strike vs Core Security Outflank Security Tooling](https://cybersectools.com/compare/core-security-cobalt-strike-vs-core-security-outflank-security-tooling)
- [Core Security Cobalt Strike vs Fortra Cobalt Strike](https://cybersectools.com/compare/core-security-cobalt-strike-vs-fortra-cobalt-strike)
- [Core Security Cobalt Strike vs Core Security Bundles and Suites](https://cybersectools.com/compare/core-security-bundles-and-suites-vs-core-security-cobalt-strike)
- [RedELK vs Core Security Outflank Security Tooling](https://cybersectools.com/compare/core-security-outflank-security-tooling-vs-redelk)
- [RedELK vs Fortra Cobalt Strike](https://cybersectools.com/compare/fortra-cobalt-strike-vs-redelk)
- [RedELK vs Core Security Bundles and Suites](https://cybersectools.com/compare/core-security-bundles-and-suites-vs-redelk)

## Alternatives to each

- [See all Core Security Cobalt Strike alternatives](https://cybersectools.com/alternatives/core-security-cobalt-strike)
- [See all RedELK alternatives](https://cybersectools.com/alternatives/redelk)

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Source: https://cybersectools.com/compare/core-security-cobalt-strike-vs-redelk

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More on Core Security Cobalt Strike and RedELK: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md