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65

ff

v0.14.0 Growing

Library for building and interfacing with finite fields

MIT/Apache-2.0 Edition 2021 MSRV 1.85

Quick Verdict

  • โœ“Actively maintained (updated 44d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (3.1K crates depend on it)
  • โœ“Permissive license (MIT/Apache-2.0)

Security

Checking security advisories...
Downloads
188.0M
Dependents
3.1K
Releases
22
Size
23KB

Deep Insights

๐Ÿ“Š
Stable downloads

16.3M downloads in the last 30 days (543.4K/day). Volume is roughly flat compared to the previous period.

๐Ÿ”—
Widely adopted

3.1K crates depend on ff. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 99 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, ff hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 23KB, ff is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include curve25519-dalek, group, elliptic-curve, pasta_curves, bls12_381. When high-quality crates choose ff, it's a strong quality signal.

Health Breakdown

Maintenance 13/25

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 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
468K/day avg-39%
0200K400K600K4/265/146/16/197/77/24

Top Dependents

Version Adoption

v0.13.1
38%
v0.12.1
32%
v0.13.0
26%
v0.10.1
2%
v0.11.1
2%

Release Timeline

10 releasessince 2021
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2021
2
2022
4
2023
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2025
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2026
2
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Feature Flags

default =["bits", "std"]

std*bits*allocderive

README

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Maintainers

Dependencies
7
direct dependencies
Dependents
3.1K
crates depend on ff