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fs-err

v3.3.0 Stable

A drop-in replacement for std::fs with more helpful error messages.

MIT OR Apache-2.0 Edition 2018

Quick Verdict

  • โœ“Actively maintained (updated 48d ago)
  • โœ“Stable API (3.x for 6+ years)
  • โœ“Massive adoption (6.9K crates depend on it)
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
82.2M
Dependents
6.9K
Releases
28
Size
27KB

Deep Insights

๐Ÿ“Š
Steady growth

7.6M downloads in the last 30 days (254.8K/day), up 8% from the previous period.

๐Ÿ”—
Widely adopted

6.9K crates depend on fs-err. Strong ecosystem adoption means battle-tested code and long-term stability.

โš ๏ธ
Single maintainer risk

fs-err has only 1 owner despite 6.9K dependents. This is a bus-factor concern โ€” consider the implications for long-term support.

โœ…
Stable for 6+ years

The API has been stable (1.x) for over 6 years with 28 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“
Compact crate

At 26KB, fs-err is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include fs4, axum-server, sqllogictest, cargo-config2, expander. When high-quality crates choose fs-err, it's a strong quality signal.

Health Breakdown

Maintenance 15/25

Recency, release consistency, active ratio

Quality 21/25

Yanked ratio, deps, size, maturity, features

Community 13/20

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
225K/day avg+32%
0100K200K300K400K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v2.11.0
55%
v2.9.0
17%
v3.1.1
16%
v3.1.0
6%
v3.1.3
5%

Release Timeline

28 releasessince 2020
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2020
12
2021
1
2022
4
2023
2
2024
1
2025
7
2026
1
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Feature Flags

debugdebug_tokioexpose_original_error

README

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Maintainers

Dependencies
4
direct dependencies
Dependents
6.9K
crates depend on fs-err