OffSec Proving Grounds is a commercial cyber range training solution by OffSec. SentinelTestbed is a free cyber range training solution. Features, integrations, deployment and the company behind each one, side by side.
Online lab platform offering hands-on penetration testing practice machines for OSCP prep
A vulnerable web site for testing Sentinel features
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Based on what each listing shows: deployment, company size, price and open source.
OffSec Proving Grounds fits if you want a cloud product and you are an enterprise.
SentinelTestbed fits if you need to run it on your own servers, you need a free product and you want an open-source product.
Common questions when comparing OffSec Proving Grounds vs SentinelTestbed for cyber range training.
OffSec Proving Grounds: Online lab platform offering hands-on penetration testing practice machines for OSCP prep, built by OffSec.
SentinelTestbed: A vulnerable web site for testing Sentinel features.
The table above shows where their features, integrations, deployment and company size fit differ.
OffSec Proving Grounds is made by OffSec. SentinelTestbed is open-source with 11 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. OffSec Proving Grounds and SentinelTestbed are both Cyber Range Training products, and both cover Vulnerable Applications. Key differences: OffSec Proving Grounds is Commercial while SentinelTestbed is Free, SentinelTestbed is open-source. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-01
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