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ff

v0.13.1 Growing

Library for building and interfacing with finite fields

MIT/Apache-2.0 Edition 2021 MSRV 1.56

Quick Verdict

  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (2.7K crates depend on it)
  • โœ“Permissive license (MIT/Apache-2.0)

Security

Checking security advisories...
Downloads
134.1M
Dependents
2.7K
Releases
20
Size
19KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

12.5M downloads in the last 30 days (416.5K/day), up 35% from the previous period.

๐Ÿ”—
Widely adopted

2.7K crates depend on ff. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 8+ years old, ff hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 18KB, 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 6/25

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
309K/day avg+91%
0200K400K600K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.12.1
34%
v0.13.0
33%
v0.13.1
28%
v0.10.1
2%
v0.11.1
2%

Release Timeline

20 releasessince 2017
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2017
2
2018
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2019
2
2020
4
2021
4
2022
4
2023
2024
2025
2
2026
Less
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Feature Flags

default =["bits", "std"]

std*bits*allocderivederive_bits

README

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Maintainers

Dependencies
7
direct dependencies
Dependents
2.7K
crates depend on ff