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swc_ecma_parser

v36.0.0 Stable

Feature-complete es2019 parser.

Apache-2.0 Edition 2021

Quick Verdict

  • โœ“Actively maintained (updated 6d ago)
  • โœ“Stable API (36.x for 7+ years)
  • โœ“Massive adoption (26.7K crates depend on it)
  • !Heavy dependency tree (24 direct deps)
  • โœ“Permissive license (Apache-2.0)

Security

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Downloads
26.7M
Dependents
26.7K
Releases
704
Size
179KB

Deep Insights

๐Ÿ“Š
Steady growth

3.0M downloads in the last 30 days (99.6K/day), up 8% from the previous period.

๐Ÿ›๏ธ
Foundational crate

26.7K crates depend on swc_ecma_parser โ€” it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

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Prolific maintainer

The primary maintainer publishes 215 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

โœ…
Stable for 7+ years

The API has been stable (1.x) for over 7 years with 704 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“ฆ
Heavy dependency tree

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

๐ŸŒŸ
Used by top crates

Notable dependents include swc_ecma_transforms_base, swc_ecma_codegen, swc_ecma_utils, swc_ecma_transforms_react, swc_ecma_transforms_typescript. When high-quality crates choose swc_ecma_parser, it's a strong quality signal.

Health Breakdown

Maintenance 19/25

Recency, release consistency, active ratio

Quality 17/25

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
87K/day avg+35%
050K100K150K200K250K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v6.0.0
36%
v27.0.7
25%
v29.0.0
20%
v0.137.1
11%
v0.144.1
8%

Release Timeline

704 releases9 yankedsince 2018
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2018
14
2019
17
2020
70
2021
128
2022
192
2023
146
2024
62
2025
70
2026
5
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Yanked

Feature Flags

default =["typescript", "stacker"]

flowdebugverifyunstabletypescript*tracing-spans

README

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Maintainers

Dependencies
24
direct dependencies
Dependents
26.7K
crates depend on swc_ecma_parser