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swc_ecma_transforms_testing

v49.0.0 Stable

rust port of babel and closure compiler.

Apache-2.0 Edition 2021

Quick Verdict

  • โœ“Actively maintained (updated 7d ago)
  • โœ“Stable API (49.x for 5+ years)
  • โœ“Massive adoption (9.9K crates depend on it)
  • โœ“Permissive license (Apache-2.0)

Security

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Downloads
3.4M
Dependents
9.9K
Releases
600
Size
24KB

Deep Insights

๐Ÿ“Š
Steady growth

204.8K downloads in the last 30 days (6.8K/day), up 17% from the previous period.

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Widely adopted

9.9K crates depend on swc_ecma_transforms_testing. Strong ecosystem adoption means battle-tested code and long-term stability.

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Prolific maintainer

The primary maintainer publishes 226 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 600 releases. This level of maturity means you can depend on it without worrying about breaking changes.

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Compact crate

At 24KB, swc_ecma_transforms_testing is lightweight. Small crate size correlates with focused, well-scoped functionality.

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Used by top crates

Notable dependents include swc_ecma_transforms_react, swc_ecma_transforms_typescript, swc_ecma_transforms_proposal, swc_core, swc_ecma_transforms_optimization. When high-quality crates choose swc_ecma_transforms_testing, it's a strong quality signal.

Health Breakdown

Maintenance 19/25

Recency, release consistency, active ratio

Quality 15/25

Yanked ratio, deps, size, maturity, features

Community 12/20

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
6K/day avg-32%
02K4K6K8K10K12K4/265/146/16/197/77/24

Top Dependents

Version Adoption

v40.0.0
32%
v46.0.0
28%
v48.0.0
24%
v45.0.0
9%
v42.0.0
8%

Release Timeline

10 releases1 yankedsince 2026
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README

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Maintainers

Dependencies
18
direct dependencies
Dependents
9.9K
crates depend on swc_ecma_transforms_testing