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swc_ecma_transforms_proposal

v39.0.0 Stable

rust port of babel and closure compiler.

Apache-2.0 Edition 2021

Quick Verdict

  • โœ“Actively maintained (updated 6d ago)
  • โœ“Stable API (39.x for 5+ years)
  • โœ“Massive adoption (4.9K crates depend on it)
  • โœ“Permissive license (Apache-2.0)

Security

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Downloads
4.5M
Dependents
4.9K
Releases
723
Size
48KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

309.6K downloads in the last 30 days (10.3K/day), up 80% from the previous period.

๐Ÿ”—
Widely adopted

4.9K crates depend on swc_ecma_transforms_proposal. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 215 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 723 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“
Compact crate

At 47KB, swc_ecma_transforms_proposal is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
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
7K/day avg+148%
05K10K15K20K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.172.3
64%
v30.0.0
11%
v0.168.52
10%
v0.179.0
9%
v0.166.3
7%

Release Timeline

723 releasessince 2021
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2021
93
2022
206
2023
306
2024
76
2025
37
2026
5
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Feature Flags

multi-module

README

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Maintainers

Dependencies
16
direct dependencies
Dependents
4.9K
crates depend on swc_ecma_transforms_proposal