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dashmap

v6.1.0 Growing

Blazing fast concurrent HashMap for Rust.

MIT Edition 2018 MSRV 1.65
AlgorithmsConcurrencyData structures #concurrent#hashmap#atomic

Quick Verdict

  • βœ•Not updated for 1+ year
  • βœ“Stable API (6.x for 6+ years)
  • βœ“Massive adoption (44.8K crates depend on it)
  • βœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
236.9M
Dependents
44.8K
Releases
84
Size
25KB

Deep Insights

πŸ“Š
Steady growth

18.6M downloads in the last 30 days (619.2K/day), up 16% from the previous period.

πŸ›οΈ
Foundational crate

44.8K crates depend on dashmap β€” it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

⚠️
Single maintainer risk

dashmap has only 1 owner despite 44.8K dependents. This is a bus-factor concern β€” consider the implications for long-term support.

βœ…
Stable for 6+ years

The API has been stable (1.x) for over 6 years with 84 releases. This level of maturity means you can depend on it without worrying about breaking changes.

πŸ“
Compact crate

At 24KB, dashmap is lightweight. Small crate size correlates with focused, well-scoped functionality.

⚠️
Notable yanked versions

14% of releases have been yanked. Check version history before pinning.

🌟
Used by top crates

Notable dependents include governor, gix-tempfile, inferno, prodash, datafusion. When high-quality crates choose dashmap, it's a strong quality signal.

Health Breakdown

Maintenance 8/25

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 14/15

Docs, repo, license, metadata

Download Trend

Daily downloads Β· last 90 days
515K/day avg+54%
0200K400K600K800K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v5.5.3
42%
v6.1.0
37%
v5.4.0
10%
v4.0.2
9%
v5.2.0
2%

Release Timeline

84 releases12 yankedsince 2019
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2019
15
2020
48
2021
2
2022
8
2023
4
2024
4
2025
3
2026
Less
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Yanked

Feature Flags

inlineraw-apitypesize

README

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Maintainers

Dependencies
10
direct dependencies
Dependents
44.8K
crates depend on dashmap

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