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Structured side-by-side comparison for technology decisions.

Metric
syn
OSSRust
Open product
hashbrown
OSSRust
Open product
TypeOSSOSS
LanguageRustRust
Stars3,2932,869
Forks360333
Contributors100100
Open Issues80104
Health ScoreN/AN/A
Trend ScoreN/AN/A
Activity ScoreN/AN/A
Reliability ScoreN/AN/A
Security ScoreN/AN/A
Latest Version2.0.117v0.16.1
LicenseApache-2.0Apache-2.0
StatusN/AN/A
Activity LevelN/AN/A
Last Release2/20/202611/20/2025
Last Commit2/22/20262/22/2026
Key Featuresproc macroPrimary stack: Rust (Apache-2.0) · Community adoption: 2.9K stars
ProsStrong community adoption. · Broad maintainer participation.Strong community adoption. · Broad maintainer participation.
ConsSecurity posture signals are mixed; run additional security review before broad adoptionSecurity posture signals are mixed; run additional security review before broad adoption
Pricing ModelFREEFREE