# CrowdSec vs threatER: side-by-side comparison (2026)

[CrowdSec](https://cybersectools.com/tools/crowdsec) is a free [intrusion detection and prevention systems](https://cybersectools.com/categories/idps) solution. [threatER](https://cybersectools.com/tools/threater) is a commercial [intrusion detection and prevention systems](https://cybersectools.com/categories/idps) solution by [threatER](https://cybersectools.com/companies/threater). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | CrowdSec | threatER |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Intrusion Detection and Prevention Systems | Intrusion Detection and Prevention Systems |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | 12,800 | – |
| Last commit | Mar 2026 | – |
| Company | – | threatER |
| Headquarters | – | – |

### Use cases and capabilities

| | CrowdSec | threatER |
|---|---|---|
| Open Source | Yes | – |
| DNS Security | – | Yes |
| Content Filtering | – | Yes |
| Threat Feed | – | Yes |
| IoT Security | – | Yes |
| Network Protection | – | Yes |
| Traffic Filtering | – | Yes |

### Core features

**CrowdSec**

No features listed.

**threatER**

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

### Integrations

**CrowdSec**

No integrations listed.

**threatER**

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

## Which one fits you

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

- [CrowdSec](https://cybersectools.com/tools/crowdsec) fits if you need both cloud and on-premises options, you need a free product and you want an open-source product.
- [threatER](https://cybersectools.com/tools/threater) fits if you want a cloud product.

## CrowdSec vs threatER FAQ

Common questions when comparing CrowdSec vs threatER for intrusion detection and prevention systems.

### What is the difference between CrowdSec and threatER?

**CrowdSec**: CrowdSec is a collaborative behavior detection engine that analyzes system logs to identify and block malicious activities using community-shared threat intelligence.

**threatER**: Preemptive threat blocking platform using IP segmentation and DNS security. Built by threatER.

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

### Who makes CrowdSec and threatER?

**CrowdSec** is open-source with 12,800 GitHub stars. **threatER** is made by threatER. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is CrowdSec a good alternative to threatER?

Often, yes. CrowdSec and threatER are both Intrusion Detection and Prevention Systems products. Key differences: CrowdSec is Free while threatER is Commercial, CrowdSec is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [CrowdSec vs Centripetal CleanINTERNET®](https://cybersectools.com/compare/centripetal-cleaninternetr-vs-crowdsec)
- [CrowdSec vs Axiom Cyber HakTrap](https://cybersectools.com/compare/axiom-cyber-haktrap-vs-crowdsec)
- [CrowdSec vs Whalebone](https://cybersectools.com/compare/crowdsec-vs-whalebone)
- [threatER vs Centripetal CleanINTERNET®](https://cybersectools.com/compare/centripetal-cleaninternetr-vs-threater)
- [threatER vs Axiom Cyber HakTrap](https://cybersectools.com/compare/axiom-cyber-haktrap-vs-threater)
- [threatER vs Whalebone](https://cybersectools.com/compare/threater-vs-whalebone)

## Alternatives to each

- [See all CrowdSec alternatives](https://cybersectools.com/alternatives/crowdsec)
- [See all threatER alternatives](https://cybersectools.com/alternatives/threater)

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Source: https://cybersectools.com/compare/crowdsec-vs-threater

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/crowdsec.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on CrowdSec and threatER: 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