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bimap

v0.6.3 Growing

Bijective maps

Apache-2.0/MIT Edition 2018
AlgorithmsData structuresNo standard library #container#map#bidirectional#bijection#two-way

Quick Verdict

  • โœ•Not updated for 3+ years
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (2.1K crates depend on it)
  • โœ“Permissive license (Apache-2.0/MIT)

Security

Checking security advisories...
Downloads
35.0M
Dependents
2.1K
Releases
18
Size
27KB

Deep Insights

๐Ÿ“Š
Steady growth

2.8M downloads in the last 30 days (92.3K/day), up 15% from the previous period.

๐Ÿ”—
Widely adopted

2.1K crates depend on bimap. Strong ecosystem adoption means battle-tested code and long-term stability.

โš ๏ธ
Single maintainer risk

bimap has only 1 owner despite 2.1K 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 8+ years old, bimap hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

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

๐ŸŒŸ
Used by top crates

Notable dependents include mcap, alloy-pubsub, cairo-lang-sierra, libp2p-rendezvous, fuel-tx. When high-quality crates choose bimap, it's a strong quality signal.

Health Breakdown

Maintenance 4/25

Recency, release consistency, active ratio

Quality 16/25

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
90K/day avg-13%
050K100K150K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v0.6.3
82%
v0.6.2
13%
v0.6.1
3%
v0.4.0
1%
v0.3.1
1%

Release Timeline

10 releasessince 2019
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2019
2
2020
4
2021
2
2022
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2023
1
2024
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2026
Less
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Feature Flags

default =["std"]

std*

README

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Maintainers

Dependencies
4
direct dependencies
Dependents
2.1K
crates depend on bimap

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