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swc_ecma_transforms_proposal

v43.0.0 Stable

rust port of babel and closure compiler.

Apache-2.0 Edition 2021

Quick Verdict

  • โœ“Actively maintained (updated 1d ago)
  • โœ“Stable API (43.x for 5+ years)
  • โœ“Massive adoption (5.0K crates depend on it)
  • โœ“Permissive license (Apache-2.0)

Security

Checking security advisories...
Downloads
5.1M
Dependents
5.0K
Releases
731
Size
50KB

Deep Insights

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Steady growth

356.3K downloads in the last 30 days (11.9K/day), up 10% from the previous period.

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Widely adopted

5.0K crates depend on swc_ecma_transforms_proposal. Strong ecosystem adoption means battle-tested code and long-term stability.

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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 731 releases. This level of maturity means you can depend on it without worrying about breaking changes.

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Compact crate

At 49KB, swc_ecma_transforms_proposal 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_typescript, swc_core, swc_ecma_transforms_optimization, deno_ast, swc_bundler. When high-quality crates choose swc_ecma_transforms_proposal, it's a strong quality signal.

Health Breakdown

Maintenance 19/25

Recency, release consistency, active ratio

Quality 18/25

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
11K/day avg+18%
05K10K15K20K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v42.0.0
50%
v41.0.1
22%
v38.0.0
14%
v39.0.0
8%
v41.0.0
6%

Release Timeline

10 releasessince 2026
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Feature Flags

multi-module

README

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Maintainers

Dependencies
16
direct dependencies
Dependents
5.0K
crates depend on swc_ecma_transforms_proposal