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parity-scale-codec

v3.7.5 Growing

SCALE - Simple Concatenating Aggregated Little Endians

Apache-2.0 Edition 2021 MSRV 1.79.0

Quick Verdict

  • โœ“Stable API (3.x for 6+ years)
  • โœ“Massive adoption (21.7K crates depend on it)
  • โœ“Team maintained (3 owners)
  • โœ“Permissive license (Apache-2.0)

Security

Checking security advisories...
Downloads
41.3M
Dependents
21.7K
Releases
64
Size
63KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

2.5M downloads in the last 30 days (84.1K/day), up 34% from the previous period.

๐Ÿ›๏ธ
Foundational crate

21.7K crates depend on parity-scale-codec โ€” it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

๐Ÿ‘ฅ
Team maintained

This crate is maintained by a team (3 owners), reducing bus-factor risk and ensuring continuity.

โœ…
Stable for 6+ years

The API has been stable (1.x) for over 6 years with 64 releases. This level of maturity means you can depend on it without worrying about breaking changes.

โš ๏ธ
Notable yanked versions

28% of releases have been yanked. Check version history before pinning.

๐ŸŒŸ
Used by top crates

Notable dependents include impl-codec, multihash, scale-info, ruint, cid. When high-quality crates choose parity-scale-codec, 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 17/20

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
64K/day avg+79%
050K100K150K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v3.7.5
33%
v3.6.12
24%
v2.3.1
19%
v3.7.4
13%
v3.6.5
11%

Release Timeline

64 releases18 yankedsince 2019
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2019
8
2020
9
2021
14
2022
9
2023
15
2024
4
2025
5
2026
Less
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Yanked

Feature Flags

default =["std"]

std*fullfuzzderivebit-vecchain-errormax-encoded-len

README

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Maintainers

Dependencies
19
direct dependencies
Dependents
21.7K
crates depend on parity-scale-codec