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typelevel/spire

Powerful new number types and numeric abstractions for Scala.

Scala

1,772

2,852 commits

updated Jul 27, 2026

typelevel.org/spire

See the code

README

Continuous Integration Discord codecov.io spire Scala version support

Spire

Spire is a numeric library for Scala which is intended to be generic, fast, and precise.

See the companion microsite

Project health

Overall

4.5/10

Maintained

0/10

Code review

10/10
OpenSSF Scorecard

Significant stargazers

(top 24 of 36)

eugene yokota

870 followers · starred Nov 2011

Jared Roesch

414 followers · starred May 2013

Yusuke Kuoka

1,256 followers · starred May 2013

ilya-klyuchnikov

475 followers · starred Sep 2021

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typelevel/spire

Powerful new number types and numeric abstractions for Scala.

Scala

1,772

2,852 commits

updated Jul 27, 2026

typelevel.org/spire

See the code

README

Continuous Integration Discord codecov.io spire Scala version support

Spire

Spire is a numeric library for Scala which is intended to be generic, fast, and precise.

See the companion microsite

Project health

Overall

4.5/10

Maintained

0/10

Code review

10/10
OpenSSF Scorecard

Significant stargazers

(top 24 of 36)

eugene yokota

870 followers · starred Nov 2011

Jared Roesch

414 followers · starred May 2013

Yusuke Kuoka

1,256 followers · starred May 2013

ilya-klyuchnikov

475 followers · starred Sep 2021

Similar repos

typelevel/scalacheck

Property-based testing for Scala

1,964

same org

typelevel/fs2

Compositional, streaming I/O library for Scala

2,454

same org

typelevel/cats

Lightweight, modular, and extensible library for functional programming.

5,472

same org

neogenie/fastnum

Fixed-size decimal numbers implemented in pure Rust

261

fthomas/refined

Refinement types for Scala

1,732

ncruces/dbldbl

Double-double arithmetic

2

paupino/rust-decimal

Decimal number implementation written in pure Rust suitable for financial and fixed-precision…

1,342

milessabin/shapeless

Generic programming for Scala

3,402