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chumsky

v0.13.0 Growing

A parser library for humans with powerful error recovery

MIT Edition 2021 MSRV 1.65
Parsing toolsText processing #syntax#parser#token#language#combinator

Quick Verdict

  • โœ“Actively maintained (updated 68d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (2.3K crates depend on it)
  • โœ“Team maintained (2 owners)
  • !Heavy dependency tree (25 direct deps)

Security

Checking security advisories...
Downloads
24.8M
Dependents
2.3K
Releases
34
Size
195KB

Deep Insights

๐Ÿ“‰
Download decline

1.7M downloads in the last 30 days, down 53% from the previous period. May indicate migration to alternatives.

๐Ÿ”—
Widely adopted

2.3K crates depend on chumsky. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ฅ
Team maintained

This crate is maintained by a team (2 owners), reducing bus-factor risk and ensuring continuity.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 5+ years old, chumsky hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“ฆ
Heavy dependency tree

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

โš ๏ธ
Notable yanked versions

12% of releases have been yanked. Check version history before pinning.

๐ŸŒŸ
Used by top crates

Notable dependents include logos, rfc2047-decoder, pep-508, jaq-parse, resolvo. When high-quality crates choose chumsky, it's a strong quality signal.

Health Breakdown

Maintenance 15/25

Recency, release consistency, active ratio

Quality 11/25

Yanked ratio, deps, size, maturity, features

Community 20/20

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
86K/day avg-83%
050K100K150K200K4/265/146/16/197/77/24

Top Dependents

Version Adoption

v0.9.3
87%
v0.12.0
7%
v1.0.0-alpha.8
3%
v0.10.1
2%
v0.11.2
1%

Release Timeline

10 releases1 yankedsince 2023
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2023
1
2024
1
2025
7
2026
1
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Yanked

Feature Flags

default =["std", "stacker"]

std*bytesdebugprattregexserdedocsrseithernightlystacker*unstableextensionmemoization_test_stablelexical-numbers

README

Loading README...

Maintainers

Dependencies
25
direct dependencies
Dependents
2.3K
crates depend on chumsky

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