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foyer

v0.22.3 Growing

foyer - Hybrid cache for Rust

Apache-2.0 Edition 2021 MSRV 1.85.0
#cache#hybrid

Quick Verdict

  • !Pre-1.0: API may have breaking changes
  • โœ“Trusted by 253 crates
  • โœ“Permissive license (Apache-2.0)

Security

Checking security advisories...
Downloads
8.6M
Dependents
253
Releases
66
Size
34KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

440.0K downloads in the last 30 days (14.7K/day), up 23% from the previous period.

๐Ÿ”—
Moderate adoption

253 crates depend on foyer. Reasonable ecosystem adoption, though not yet a core dependency.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 3+ years old, foyer hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 33KB, foyer is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include deltalake-core, slatedb, dspy-rs, foyer-bench, anttp. When high-quality crates choose foyer, it's a strong quality signal.

Health Breakdown

Maintenance 13/25

Recency, release consistency, active ratio

Quality 15/25

Yanked ratio, deps, size, maturity, features

Community 9/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
20K/day avg-65%
020K40K60K80K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v0.19.2
51%
v0.22.2
34%
v0.20.1
9%
v0.22.3
5%
v0.21.2
1%

Release Timeline

10 releasessince 2025
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2026
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Feature Flags

default =["runtime-tokio"]

clapserdenightlytracingdeadlocktest_utilsruntime-tokio*strict_assertionsruntime-madsim-tokio

README

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Maintainers

Dependencies
20
direct dependencies
Dependents
253
crates depend on foyer

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