# CTFd vs OffSec Proving Grounds: side-by-side comparison (2026)

[CTFd](https://cybersectools.com/tools/ctfd) is a free [cyber range training](https://cybersectools.com/categories/cyber-range) solution. [OffSec Proving Grounds](https://cybersectools.com/tools/offsec-proving-grounds) is a commercial [cyber range training](https://cybersectools.com/categories/cyber-range) solution by [OffSec](https://cybersectools.com/companies/offsec). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | CTFd | OffSec Proving Grounds |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Cyber Range Training | Cyber Range Training |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | 6,569 | – |
| Last commit | Mar 2026 | – |
| Company | – | OffSec |
| Headquarters | – | – |

### Use cases and capabilities

| | CTFd | OffSec Proving Grounds |
|---|---|---|
| CTF | Yes | Yes |
| Education | Yes | Yes |
| Penetration Testing Framework | – | Yes |
| Lab | – | Yes |
| Vulnerable Applications | – | Yes |
| Windows | – | Yes |
| Linux | – | Yes |
| Reconnaissance | – | Yes |
| Exploitation Framework | – | Yes |
| Online Learning | – | Yes |

### Core features

**CTFd**

No features listed.

**OffSec Proving Grounds**

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

### Integrations

**CTFd**

No integrations listed.

**OffSec Proving Grounds**

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.

- [CTFd](https://cybersectools.com/tools/ctfd) fits if you need both cloud and on-premises options, you need a free product and you want an open-source product.
- [OffSec Proving Grounds](https://cybersectools.com/tools/offsec-proving-grounds) fits if you want a cloud product.

## CTFd vs OffSec Proving Grounds FAQ

Common questions when comparing CTFd vs OffSec Proving Grounds for cyber range training.

### What is the difference between CTFd and OffSec Proving Grounds?

**CTFd**: CTFd is a web-based framework for creating and managing Capture The Flag cybersecurity competitions with customizable challenges, scoring systems, and team management capabilities.

**OffSec Proving Grounds**: Online lab platform offering hands-on penetration testing practice machines for OSCP prep, built by OffSec.

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

### Who makes CTFd and OffSec Proving Grounds?

**CTFd** is open-source with 6,569 GitHub stars. **OffSec Proving Grounds** is made by OffSec. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is CTFd a good alternative to OffSec Proving Grounds?

Often, yes. CTFd and OffSec Proving Grounds are both Cyber Range Training products, and both cover CTF, Education. Key differences: CTFd is Free while OffSec Proving Grounds is Commercial, CTFd is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [CTFd vs GemForge Labs](https://cybersectools.com/compare/ctfd-vs-gemforge-labs)
- [CTFd vs ACI Learning Skill Labs](https://cybersectools.com/compare/aci-learning-skill-labs-vs-ctfd)
- [CTFd vs MetaCTF Cloud Labs / Cloud Ranges](https://cybersectools.com/compare/ctfd-vs-metactf-cloud-labs-cloud-ranges)
- [OffSec Proving Grounds vs GemForge Labs](https://cybersectools.com/compare/gemforge-labs-vs-offsec-proving-grounds)
- [OffSec Proving Grounds vs ACI Learning Skill Labs](https://cybersectools.com/compare/aci-learning-skill-labs-vs-offsec-proving-grounds)
- [OffSec Proving Grounds vs MetaCTF Cloud Labs / Cloud Ranges](https://cybersectools.com/compare/metactf-cloud-labs-cloud-ranges-vs-offsec-proving-grounds)

## Alternatives to each

- [See all CTFd alternatives](https://cybersectools.com/alternatives/ctfd)
- [See all OffSec Proving Grounds alternatives](https://cybersectools.com/alternatives/offsec-proving-grounds)

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Source: https://cybersectools.com/compare/ctfd-vs-offsec-proving-grounds

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

More on CTFd and OffSec Proving Grounds: 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