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cxx

v1.0.194 Stable

Safe interop between Rust and C++

MIT OR Apache-2.0 Edition 2021 MSRV 1.82

Quick Verdict

  • โœ“Stable API (1.x for 6+ years)
  • โœ“Massive adoption (3.9K crates depend on it)
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

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Downloads
64.5M
Dependents
3.9K
Releases
241
Size
239KB

Deep Insights

๐Ÿ“Š
Stable downloads

3.1M downloads in the last 30 days (103.8K/day). Volume is roughly flat compared to the previous period.

๐Ÿ”—
Widely adopted

3.9K 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 13/25

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
104K/day avg-4%
050K100K150K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v1.0.194
28%
v1.0.192
27%
v1.0.185
20%
v1.0.187
18%
v1.0.186
7%

Release Timeline

10 releasessince 2025
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2025
8
2026
2
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Feature Flags

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

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

README

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Maintainers

Dependencies
19
direct dependencies
Dependents
3.9K
crates depend on cxx

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