Top 7 refinement-type Open-Source Projects

ante

23 1,827 8.1 Rust

A safe, easy systems language

Project mention: Dada, an Experiement by the Creators of Rust | news.ycombinator.com | 2024-03-06

refined

16 1,680 8.6 Scala

Refinement types for Scala

Project mention: Make Invalid States Unrepresentable | dev.to | 2024-02-02

Scala has quite good support for refined types across multiple libraries. A solution using the refined library might look something like

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
liquidhaskell

4 1,147 9.3 Haskell

Liquid Types For Haskell
Deal

9 690 4.7 Python

🤝 Design by contract for Python. Write bug-free code. Add a few decorators, get static analysis and tests for free.
flux

4 548 9.5 Rust

Refinement Types for Rust (by flux-rs)

Project mention: Languages on the rise like Rust and Go are being quite vocal against inheritance and many engineers seem to agree. Is this the end of inheritance? What do you think? | /r/rust | 2023-07-04

Right, the way to fix it is to use refinement types (such as flux for rust)

iron

20 407 8.3 Scala

Strong type constraints for Scala (by Iltotore)

Project mention: Make Invalid States Unrepresentable | dev.to | 2024-02-02

Scala has quite good support for refined types across multiple libraries. A solution using the refined library might look something like

phantom-types

2 184 6.5 Python

Phantom types for Python.
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).