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harper-core

v2.5.0 Stable

The language checker for developers.

Apache-2.0 Edition 2024

Quick Verdict

  • โœ“Actively maintained (updated 32d ago)
  • โœ“Stable API (2.x for 2+ years)
  • โœ“Trusted by 683 crates
  • !Heavy dependency tree (33 direct deps)
  • โœ“Permissive license (Apache-2.0)

Security

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Downloads
99.7K
Dependents
683
Releases
118
Size
1.7MB

Deep Insights

๐Ÿ“Š
Stable downloads

2.7K downloads in the last 30 days (91/day). Volume is roughly flat compared to the previous period.

๐Ÿ”—
Moderate adoption

683 crates depend on harper-core. Reasonable ecosystem adoption, though not yet a core dependency.

โœ…
Stable for 2+ years

The API has been stable (1.x) for over 2 years with 118 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“ฆ
Heavy dependency tree

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

๐ŸŒŸ
Used by top crates

Notable dependents include harper-ls, harper-comments, harper-html, harper-tree-sitter, harper-typst. When high-quality crates choose harper-core, it's a strong quality signal.

Health Breakdown

Maintenance 17/25

Recency, release consistency, active ratio

Quality 14/25

Yanked ratio, deps, size, maturity, features

Community 9/20

Reverse deps, ownership, ecosystem

Popularity 6/15

Downloads, momentum, growth trend

Documentation 10/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
73/day avg-14%
0501001502004/265/146/16/197/77/24

Top Dependents

Version Adoption

v1.12.0
39%
v2.0.0
25%
v2.5.0
15%
v1.10.0
14%
v1.9.0
7%

Release Timeline

10 releasessince 2026
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Feature Flags

default =["thesaurus"]

thesaurus*concurrent

README

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Maintainers

Dependencies
33
direct dependencies
Dependents
683
crates depend on harper-core