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rand_core

v0.10.1 Growing

Core random number generation traits and tools for implementation.

MIT OR Apache-2.0 Edition 2024 MSRV 1.85

Quick Verdict

  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (24.6K crates depend on it)
  • โœ“Team maintained (2 owners)
  • โœ“Tiny footprint (23KB, 0 deps)
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
1.4B
Dependents
24.6K
Releases
38
Size
23KB

Deep Insights

๐Ÿ“Š
Stable downloads

115.2M downloads in the last 30 days (3.8M/day). Volume is roughly flat compared to the previous period.

๐Ÿ›๏ธ
Foundational crate

24.6K crates depend on rand_core โ€” it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

๐Ÿ‘ฅ
Team maintained

This crate is maintained by a team (2 owners), reducing bus-factor risk and ensuring continuity.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 8+ years old, rand_core hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿชถ
Zero dependencies

rand_core has no external dependencies โ€” minimal supply chain risk and fast compile times.

๐Ÿ“
Compact crate

At 22KB, rand_core is lightweight. Small crate size correlates with focused, well-scoped functionality.

โš ๏ธ
Notable yanked versions

11% of releases have been yanked. Check version history before pinning.

๐ŸŒŸ
Used by top crates

Notable dependents include getrandom, rand, rand_chacha, ryu, crypto-common. When high-quality crates choose rand_core, it's a strong quality signal.

Health Breakdown

Maintenance 13/25

Recency, release consistency, active ratio

Quality 12/25

Yanked ratio, deps, size, maturity, features

Community 19/20

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
3.3M/day avg-40%
01.0M2.0M3.0M4.0M5.0M4/265/146/16/197/77/24

Top Dependents

Version Adoption

v0.9.5
67%
v0.10.1
18%
v0.10.0
14%
v0.10.0-rc-3
1%
v0.9.4
0%

Release Timeline

10 releasessince 2025
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2025
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2026
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README

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Maintainers

Dependencies
0
direct dependencies
Dependents
24.6K
crates depend on rand_core

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