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fs2

v0.4.3 Growing

Cross-platform file locks and file duplication.

MIT/Apache-2.0
#file#lock#file-system#duplicate#flock

Quick Verdict

  • โœ•Not updated for 8+ years
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (9.9K crates depend on it)
  • โœ“Tiny footprint (13KB, 3 deps)
  • โœ“Permissive license (MIT/Apache-2.0)

Security

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Downloads
62.8M
Dependents
9.9K
Releases
12
Size
13KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

4.3M downloads in the last 30 days (143.3K/day), up 24% from the previous period.

๐Ÿ”—
Widely adopted

9.9K crates depend on fs2. Strong ecosystem adoption means battle-tested code and long-term stability.

โš ๏ธ
Single maintainer risk

fs2 has only 1 owner despite 9.9K dependents. This is a bus-factor concern โ€” consider the implications for long-term support.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 10+ years old, fs2 hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿชถ
Minimal dependencies

Only 3 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.

๐Ÿ“
Compact crate

At 13KB, fs2 is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include sled, parity-db, pickledb, webrtc-sys-build, cached-path. When high-quality crates choose fs2, it's a strong quality signal.

Health Breakdown

Maintenance 5/25

Recency, release consistency, active ratio

Quality 15/25

Yanked ratio, deps, size, maturity, features

Community 12/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 11/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
125K/day avg+25%
050K100K150K200K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v0.4.3
98%
v0.2.5
1%
v0.4.2
0%
v0.3.0
0%
v0.4.0
0%

Release Timeline

10 releasessince 2015
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2017
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2018
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README

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Maintainers

Dependencies
3
direct dependencies
Dependents
9.9K
crates depend on fs2

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