rustio rustio.net
64

chumsky

v0.12.0 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

  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (1.8K crates depend on it)
  • โœ“Team maintained (2 owners)
  • !Heavy dependency tree (26 direct deps)
  • โœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
14.4M
Dependents
1.8K
Releases
33
Size
193KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

2.8M downloads in the last 30 days (94.9K/day), up 86% from the previous period.

๐Ÿ”—
Widely adopted

1.8K 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 4+ years old, chumsky hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“ฆ
Heavy dependency tree

26 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, lettre, rfc2047-decoder, jaq-parse, pep-508. When high-quality crates choose chumsky, it's a strong quality signal.

Health Breakdown

Maintenance 14/25

Recency, release consistency, active ratio

Quality 10/25

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
58K/day avg+165%
050K100K150K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.9.3
78%
v0.8.0
12%
v1.0.0-alpha.6
5%
v0.12.0
3%
v0.9.2
3%

Release Timeline

33 releases4 yankedsince 2021
J
F
M
A
M
J
J
A
S
O
N
D
2021
13
2022
1
2023
11
2024
1
2025
7
2026
Less
More|
Yanked

Feature Flags

default =["std", "stacker"]

std*syncbytesdebugprattregexserdedocsrseithernightlystacker*unstableextensionmemoization_test_stablelexical-numbers

README

Loading README...

Maintainers

Dependencies
26
direct dependencies
Dependents
1.8K
crates depend on chumsky

Similar Crates