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swc_ecmascript

v62.0.0 Stable

Ecmascript

Apache-2.0 Edition 2021

Quick Verdict

  • โœ“Actively maintained (updated 1d ago)
  • โœ“Stable API (62.x for 5+ years)
  • โœ“Trusted by 941 crates
  • โœ“Permissive license (Apache-2.0)

Security

Checking security advisories...
Downloads
2.2M
Dependents
941
Releases
1213
Size
20KB

Deep Insights

๐Ÿ“‰
Download decline

16.0K downloads in the last 30 days, down 34% from the previous period. May indicate migration to alternatives.

๐Ÿ”—
Moderate adoption

941 crates depend on swc_ecmascript. Reasonable ecosystem adoption, though not yet a core dependency.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 225 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

โœ…
Stable for 5+ years

The API has been stable (1.x) for over 5 years with 1213 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“
Compact crate

At 19KB, swc_ecmascript is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include dprint-swc-ecma-ast-view, clarinet, easyops_deno, poly_styled_jsx, poly_swc_emotion. When high-quality crates choose swc_ecmascript, it's a strong quality signal.

Health Breakdown

Maintenance 19/25

Recency, release consistency, active ratio

Quality 21/25

Yanked ratio, deps, size, maturity, features

Community 11/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 13/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
699/day avg-43%
05001K2K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v54.0.0
38%
v52.0.0
31%
v60.0.0
12%
v53.0.0
10%
v59.0.0
9%

Release Timeline

10 releasessince 2026
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Feature Flags

default =["typescript-parser"]

quotereactutilsvisitcompatmoduleparsercodegenminifierproposalrkyv-implconcurrentpreset_envtransformstypescriptoptimizationtypescript-parser*

README

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Maintainers

Dependencies
10
direct dependencies
Dependents
941
crates depend on swc_ecmascript