# Calamu Data Harbor vs Permanent-Eraser: side-by-side comparison (2026)

[Calamu Data Harbor](https://cybersectools.com/tools/calamu-data-harbor) is a commercial [data loss prevention](https://cybersectools.com/categories/dlp) solution by [Calamu](https://cybersectools.com/companies/calamu). [Permanent-Eraser](https://cybersectools.com/tools/permanent-eraser) is a free [data loss prevention](https://cybersectools.com/categories/dlp) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Calamu Data Harbor | Permanent-Eraser |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Data Loss Prevention | Data Loss Prevention |
| Verified | No | No |
| Deployment type | Hybrid | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | – | 22 |
| Last commit | – | Jul 2020 |
| Company | Calamu | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Calamu Data Harbor | Permanent-Eraser |
|---|---|---|
| Ransomware Prevention | Yes | – |
| Data Breach | Yes | – |
| Data Exfiltration | Yes | – |
| Encryption | Yes | – |
| Anomaly Detection | Yes | – |
| S3 | Yes | – |
| Ransomware | Yes | – |
| Workload Security | Yes | – |
| macOS | – | Yes |

### Core features

**Calamu Data Harbor**

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

**Permanent-Eraser**

No features listed.

### Integrations

**Calamu Data Harbor**

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

**Permanent-Eraser**

No integrations listed.

## Which one fits you

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

- [Calamu Data Harbor](https://cybersectools.com/tools/calamu-data-harbor) fits if you need both cloud and on-premises options.
- [Permanent-Eraser](https://cybersectools.com/tools/permanent-eraser) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.

## Calamu Data Harbor vs Permanent-Eraser FAQ

Common questions when comparing Calamu Data Harbor vs Permanent-Eraser for data loss prevention.

### What is the difference between Calamu Data Harbor and Permanent-Eraser?

**Calamu Data Harbor**: Breach-proof data storage platform using fragmentation to prevent data theft. Built by Calamu.

**Permanent-Eraser**: Secure file erasing utility for Mac OS X.

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

### Who makes Calamu Data Harbor and Permanent-Eraser?

**Calamu Data Harbor** is made by Calamu. **Permanent-Eraser** is open-source with 22 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Calamu Data Harbor a good alternative to Permanent-Eraser?

Often, yes. Calamu Data Harbor and Permanent-Eraser are both Data Loss Prevention products. Key differences: Calamu Data Harbor is Commercial while Permanent-Eraser is Free, Permanent-Eraser is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Calamu Data Harbor vs SecureData](https://cybersectools.com/compare/calamu-data-harbor-vs-securedata)
- [Calamu Data Harbor vs Safetica DLP](https://cybersectools.com/compare/calamu-data-harbor-vs-safetica-dlp)
- [Calamu Data Harbor vs BlackFog ADX](https://cybersectools.com/compare/blackfog-adx-vs-calamu-data-harbor)
- [Permanent-Eraser vs SecureData](https://cybersectools.com/compare/permanent-eraser-vs-securedata)
- [Permanent-Eraser vs Safetica DLP](https://cybersectools.com/compare/permanent-eraser-vs-safetica-dlp)
- [Permanent-Eraser vs BlackFog ADX](https://cybersectools.com/compare/blackfog-adx-vs-permanent-eraser)

## Alternatives to each

- [See all Calamu Data Harbor alternatives](https://cybersectools.com/alternatives/calamu-data-harbor)
- [See all Permanent-Eraser alternatives](https://cybersectools.com/alternatives/permanent-eraser)

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Source: https://cybersectools.com/compare/calamu-data-harbor-vs-permanent-eraser

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

More on Calamu Data Harbor and Permanent-Eraser: 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