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rkyv

v0.8.17 Growing

Zero-copy deserialization framework for Rust

MIT Edition 2021 MSRV 1.81
EncodingNo standard libraryNo standard library::No dynamic allocation #serialization#zero-copy#archive#no_std#rkyv

Quick Verdict

  • โœ“Actively maintained (updated 11d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (11.4K crates depend on it)
  • !Heavy dependency tree (24 direct deps)
  • โœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
128.3M
Dependents
11.4K
Releases
94
Size
171KB

Deep Insights

๐Ÿ“Š
Steady growth

11.0M downloads in the last 30 days (367.1K/day), up 2% from the previous period.

๐Ÿ›๏ธ
Foundational crate

11.4K crates depend on rkyv โ€” it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

โš ๏ธ
Single maintainer risk

rkyv has only 1 owner despite 11.4K 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 5+ years old, rkyv hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“ฆ
Heavy dependency tree

24 direct dependencies. Consider the impact on compile times and supply chain complexity.

๐ŸŒŸ
Used by top crates

Notable dependents include generic-array, chrono, litemap, half, ordered-float. When high-quality crates choose rkyv, it's a strong quality signal.

Health Breakdown

Maintenance 18/25

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 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
308K/day avg-34%
0100K200K300K400K500K4/265/146/16/197/77/24

Top Dependents

Version Adoption

v0.7.46
61%
v0.8.15
13%
v0.8.11
12%
v0.8.12
8%
v0.8.10
6%

Release Timeline

10 releasessince 2024
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2025
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2026
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Feature Flags

default =["std", "bytecheck"]

std*allocuuid-1alignedbytecheck*unalignedbig_endianindexmap-2triomphe-0_1little_endianhashbrown-0_17pointer_width_16pointer_width_32pointer_width_64

README

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Maintainers

Dependencies
24
direct dependencies
Dependents
11.4K
crates depend on rkyv

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