Arcjet vs Shield: Side-by-Side Comparison (2026)

Arcjet: Developer-first security SDK for bot detection, rate limiting, and attack protection. built by Arcjet..

Shield: Runtime endpoint firewall that blocks malicious packages before they execute. built by Xygeni..

Both serve the Runtime Application Self-Protection market but differ in approach, feature depth, and target audience.

Arcjet is developed by Arcjet. Shield is developed by Xygeni. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Arcjet and Shield serve similar Runtime Application Self-Protection use cases: both are Runtime Application Self-Protection tools. Key differences: Arcjet is Commercial while Shield is Free. Review the feature comparison above to determine which fits your requirements.