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bolero

v0.13.4 Growing

fuzz and property testing front-end

MIT Edition 2021 MSRV 1.66.0
#testing#quickcheck#property#fuzz#fuzzing

Quick Verdict

  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (1.3K crates depend on it)
  • โœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
3.8M
Dependents
1.3K
Releases
24
Size
15KB

Deep Insights

๐Ÿ“Š
Stable downloads

388.9K downloads in the last 30 days (13.0K/day). Volume is roughly flat compared to the previous period.

๐Ÿ”—
Widely adopted

1.3K crates depend on bolero. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 51 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 6+ years old, bolero hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 15KB, bolero is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include near-account-id, near-crypto, near-primitives, libdd-trace-utils, libdd-trace-protobuf. When high-quality crates choose bolero, it's a strong quality signal.

Health Breakdown

Maintenance 9/25

Recency, release consistency, active ratio

Quality 15/25

Yanked ratio, deps, size, maturity, features

Community 15/20

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
13K/day avg-1%
010K20K30K40K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v0.13.0
59%
v0.13.4
31%
v0.10.1
6%
v0.11.1
2%
v0.9.0
2%

Release Timeline

10 releasessince 2023
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2023
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2024
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2025
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2026
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Feature Flags

default =["std"]

std*allocarbitrary

README

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Maintainers

Dependencies
12
direct dependencies
Dependents
1.3K
crates depend on bolero

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