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rb-sys

v0.9.128 Growing

Rust bindings for the CRuby API

MIT OR Apache-2.0 Edition 2018 MSRV 1.75

Quick Verdict

  • โœ“Actively maintained (updated 21d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Tiny footprint (40KB, 2 deps)
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
5.5M
Dependents
78
Releases
132
Size
40KB

Deep Insights

๐Ÿ“‰
Download decline

288.2K downloads in the last 30 days, down 23% from the previous period. May indicate migration to alternatives.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 4+ years old, rb-sys hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿชถ
Minimal dependencies

Only 2 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.

๐Ÿ“
Compact crate

At 39KB, rb-sys is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include magnus, rb-sys-test-helpers, bevy_scriptum, rb-allocator, lucchetto. When high-quality crates choose rb-sys, it's a strong quality signal.

Health Breakdown

Maintenance 18/25

Recency, release consistency, active ratio

Quality 19/25

Yanked ratio, deps, size, maturity, features

Community 10/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 14/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
10K/day avg+1%
05K10K15K20K25K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v0.9.124
61%
v0.9.126
20%
v0.9.123
9%
v0.9.128
6%
v0.9.125
5%

Release Timeline

10 releasessince 2025
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Feature Flags

default =["stable-api-compiled-fallback"]

fuzzgc-stresslink-rubystable-apiruby-macrosruby-staticno-link-rubybindgen-rbimplsglobal-allocatorbindgen-impl-debugbindgen-layout-testsbindgen-sizet-is-usizebindgen-deprecated-typesstable-api-compiled-forcestable-api-compiled-testingstable-api-compiled-fallback*bindgen-return-const-encoding-pointersbindgen-enable-function-attribute-detection

README

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Maintainers

Dependencies
2
direct dependencies
Dependents
78
crates depend on rb-sys