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crc-fast
v1.10.0 GrowingWorld's fastest generic CRC16, CRC32, and CRC64 calculator using SIMD. Supplies a C-compatible shared library for use in other languages.
MIT OR Apache-2.0 Edition 2021 MSRV 1.89
Quick Verdict
- ✓Actively maintained (updated 86d ago)
- ✓Trusted by 172 crates
- ✓Permissive license (MIT OR Apache-2.0)
Security
Checking security advisories...
Downloads
19.3M
Dependents
172
Releases
18
Size
1.2MB
Deep Insights
📊
Steady growth
4.6M downloads in the last 30 days (154.2K/day), up 16% from the previous period.
🔗
Moderate adoption
172 crates depend on crc-fast. Reasonable ecosystem adoption, though not yet a core dependency.
🌟
Used by top crates
Notable dependents include aws-smithy-checksums, uucore, s3s, commonware-cryptography, s3sync. When high-quality crates choose crc-fast, it's a strong quality signal.
Health Breakdown
Maintenance 14/25
Recency, release consistency, active ratio
Quality 18/25
Yanked ratio, deps, size, maturity, features
Community 12/20
Reverse deps, ownership, ecosystem
Popularity 8/15
Downloads, momentum, growth trend
Documentation 12/15
Docs, repo, license, metadata
Download Trend
Daily downloads · last 90 days
123K/day avg+78%
Top Dependents
Most downloaded crates that depend on crc-fast
Version Adoption
v1.3.0
43%
v1.9.0
28%
v1.6.0
22%
v1.10.0
4%
v1.2.1
4%
Release Timeline
18 releasessince 2025
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2026
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Feature Flags
default =["std", "panic-handler", "ffi"]
cliffi*std*alloccachevpclmulqdqpanic-handler*optimize_crc32_autooptimize_crc32_sse_v4s3x3optimize_crc32_neon_blendedoptimize_crc32_neon_v12e_v1optimize_crc32_avx512_v4s3x3optimize_crc32_neon_v3s4x2e_v2optimize_crc32_neon_eor3_v9s3x2e_s3optimize_crc32_avx512_vpclmulqdq_v3x2
README
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Maintainers
Dependencies
13
direct dependencies
Dependents
172
crates depend on crc-fast