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ncm2mp3-core
v0.3.1 ExperimentalDecrypt Netease Cloud Music NCM files. Parses the container format, applies the AES-128-ECB metadata/key decryption and the NCM-specific RC4-variant stream cipher, and streams the original audio (MP3/FLAC/M4A/...) to any Write. No network, no transcoding.
Apache-2.0 Edition 2021 MSRV 1.75
Command line utilitiesEncodingMultimedia::AudioParser implementations #audio#decrypt#ncm#netease#cloudmusic
Quick Verdict
- ✓Actively maintained (updated 28d ago)
- !Pre-1.0: API may have breaking changes
- ✓Permissive license (Apache-2.0)
Security
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Downloads
58
Dependents
2
Releases
2
Size
16KB
Deep Insights
📈
Strong growth momentum
41 downloads in the last 30 days (1/day), up 141% from the previous period.
📐
Compact crate
At 16KB, ncm2mp3-core is lightweight. Small crate size correlates with focused, well-scoped functionality.
Health Breakdown
Maintenance 12/25
Recency, release consistency, active ratio
Quality 12/25
Yanked ratio, deps, size, maturity, features
Community 7/20
Reverse deps, ownership, ecosystem
Popularity 2/15
Downloads, momentum, growth trend
Documentation 15/15
Docs, repo, license, metadata
Download Trend
Daily downloads · last 90 days
0/day avg
Top Dependents
Most downloaded crates that depend on ncm2mp3-core
Version Adoption
v0.3.1
55%
v0.3.0
45%
Release Timeline
2 releasessince 2026
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README
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Maintainers
Dependencies
11
direct dependencies
Dependents
2
crates depend on ncm2mp3-core