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70

cxx

v1.0.194 Stable

Safe interop between Rust and C++

MIT OR Apache-2.0 Edition 2021 MSRV 1.82

Quick Verdict

  • โœ“Actively maintained (updated 65d ago)
  • โœ“Stable API (1.x for 6+ years)
  • โœ“Massive adoption (3.7K crates depend on it)
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
58.4M
Dependents
3.7K
Releases
241
Size
239KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

3.2M downloads in the last 30 days (105.6K/day), up 23% from the previous period.

๐Ÿ”—
Widely adopted

3.7K crates depend on cxx. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 231 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

โœ…
Stable for 6+ years

The API has been stable (1.x) for over 6 years with 241 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐ŸŒŸ
Used by top crates

Notable dependents include cxxbridge-macro, cxx-build, wasm-opt-sys, wasm-opt-cxx-sys, webrtc-sys. When high-quality crates choose cxx, it's a strong quality signal.

Health Breakdown

Maintenance 15/25

Recency, release consistency, active ratio

Quality 18/25

Yanked ratio, deps, size, maturity, features

Community 14/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
84K/day avg+68%
050K100K150K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v1.0.128
28%
v1.0.94
23%
v1.0.106
20%
v1.0.91
15%
v1.0.89
14%

Release Timeline

241 releases4 yankedsince 2019
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2019
1
2020
71
2021
36
2022
24
2023
26
2024
25
2025
56
2026
2
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Yanked

Feature Flags

default =["std", "cxxbridge-flags/default"]

std*allocc++14c++17c++20

README

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Maintainers

Dependencies
19
direct dependencies
Dependents
3.7K
crates depend on cxx

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