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smallvec

v1.15.1 Stable

'Small vector' optimization: store up to a small number of items on the stack

MIT OR Apache-2.0 Edition 2018
Data structures #vector#vec#stack#no_std#small

Quick Verdict

  • โœ“Stable API (1.x for 10+ years)
  • โœ“Massive adoption (51.1K crates depend on it)
  • โœ“Team maintained (3 owners)
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
730.7M
Dependents
51.1K
Releases
76
Size
38KB

Deep Insights

๐Ÿ“Š
Steady growth

50.9M downloads in the last 30 days (1.7M/day), up 18% from the previous period.

๐Ÿ›๏ธ
Foundational crate

51.1K crates depend on smallvec โ€” it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

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Prolific maintainer

The primary maintainer publishes 117 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

โœ…
Stable for 10+ years

The API has been stable (1.x) for over 10 years with 76 releases. This level of maturity means you can depend on it without worrying about breaking changes.

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Compact crate

At 37KB, smallvec is lightweight. Small crate size correlates with focused, well-scoped functionality.

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Notable yanked versions

26% of releases have been yanked. Check version history before pinning.

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Used by top crates

Notable dependents include parking_lot_core, idna, hyper, ahash, tinyvec. When high-quality crates choose smallvec, it's a strong quality signal.

Health Breakdown

Maintenance 14/25

Recency, release consistency, active ratio

Quality 17/25

Yanked ratio, deps, size, maturity, features

Community 19/20

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
1.4M/day avg+55%
0500K1.0M1.5M2.0M12/291/162/32/213/113/28

Top Dependents

Version Adoption

v1.15.1
38%
v1.13.2
33%
v1.10.0
14%
v1.15.0
8%
v1.14.0
7%

Release Timeline

76 releases20 yankedsince 2015
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2015
6
2016
6
2017
9
2018
10
2019
8
2020
8
2021
3
2022
4
2023
4
2024
12
2025
6
2026
Less
More|
Yanked

Feature Flags

unionwriteconst_newmay_dangledrain_filterimpl_bincodeconst_genericsspecializationdrain_keep_restdebugger_visualizer

README

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Maintainers

Dependencies
8
direct dependencies
Dependents
51.1K
crates depend on smallvec

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