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fancy-regex

v0.18.0 Growing

An implementation of regexes, supporting a relatively rich set of features, including backreferences and look-around. Aims to be compatible with Oniguruma syntax when the relevant flag is set.

MIT Edition 2018 MSRV 1.66

Quick Verdict

  • โœ“Actively maintained (updated 81d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (6.3K crates depend on it)
  • โœ“Team maintained (4 owners)
  • โœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
177.5M
Dependents
6.3K
Releases
27
Size
156KB

Deep Insights

๐Ÿ“Š
Steady growth

15.9M downloads in the last 30 days (529.5K/day), up 1% from the previous period.

๐Ÿ”—
Widely adopted

6.3K crates depend on fancy-regex. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 56 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 9+ years old, fancy-regex hasn't reached 1.0 yet. Expect potential API changes between versions.

๐ŸŒŸ
Used by top crates

Notable dependents include jsonschema, tokenizers, valico, syntect, newline-converter. When high-quality crates choose fancy-regex, it's a strong quality signal.

Health Breakdown

Maintenance 12/25

Recency, release consistency, active ratio

Quality 16/25

Yanked ratio, deps, size, maturity, features

Community 17/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 14/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
435K/day avg-26%
0200K400K600K4/265/146/16/197/77/24

Top Dependents

Version Adoption

v0.13.0
34%
v0.11.0
32%
v0.14.0
19%
v0.17.0
8%
v0.16.2
6%

Release Timeline

10 releasessince 2023
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2024
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2025
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2026
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Feature Flags

default =["unicode", "perf", "std", "variable-lookbehinds"]

std*perf*unicode*track_callervariable-lookbehinds*

README

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Maintainers

Dependencies
7
direct dependencies
Dependents
6.3K
crates depend on fancy-regex