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70

swc

v71.0.0 Stable

Speedy web compiler

Apache-2.0 Edition 2021

Quick Verdict

  • โœ“Actively maintained (updated 5d ago)
  • โœ“Stable API (71.x for 5+ years)
  • โœ“Massive adoption (5.0K crates depend on it)
  • !Heavy dependency tree (63 direct deps)
  • โœ“Permissive license (Apache-2.0)

Security

Checking security advisories...
Downloads
3.2M
Dependents
5.0K
Releases
1439
Size
76KB

Deep Insights

๐Ÿ“Š
Steady growth

123.0K downloads in the last 30 days (4.1K/day), up 15% from the previous period.

๐Ÿ”—
Widely adopted

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

๐Ÿ‘ค
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 1439 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“ฆ
Heavy dependency tree

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

๐ŸŒŸ
Used by top crates

Notable dependents include swc_core, binding_macros, swc_estree_compat, swc_node_bundler, cargo-leptos. When high-quality crates choose swc, 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
3K/day avg-5%
02K4K6K4/265/146/16/197/77/24

Top Dependents

Version Adoption

v67.0.0
33%
v69.0.0
27%
v70.0.0
22%
v66.0.0
14%
v66.1.0
4%

Release Timeline

10 releases2 yankedsince 2026
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2026
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Feature Flags

default =["lint", "isolated-dts", "module"]

es3flowlint*nodedebugmodule*pluginconcurrentisolated-dts*react-compilermanual-tokio-runtimeplugin_backend_wasmerplugin_transform_host_jsplugin_transform_schema_v1plugin_transform_host_nativeplugin_transform_schema_vtest

README

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Maintainers

Dependencies
63
direct dependencies
Dependents
5.0K
crates depend on swc