Top 19 Immutability Open-Source Projects

• http4k

  5 2,502 9.8 Kotlin

  The Functional toolkit for Kotlin HTTP applications. http4k provides a simple and uniform way to serve, consume, and test HTTP services.

  

• mutative

  15 1,460 8.8 TypeScript

  Efficient immutable updates, 2-6x faster than naive handcrafted reducer, and more than 10x faster than Immer.

Project mention: Mutative: Efficient immutable updates, more than 10x faster than Immer | news.ycombinator.com | 2024-05-03

• SurveyJS

  surveyjs.io featured

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• eslint-plugin-functional

  5 730 9.2 TypeScript

  ESLint rules to disable mutation and promote fp in JavaScript and TypeScript.

  

• DontFearTheProfunctorOptics

  3 409 0.0 Haskell

  Don't Fear the Profunctor Optics!

  

• structura.js

  4 395 7.6 TypeScript

  A very fast and lightweight Typescript library to create immutable states with a mutable syntax

Project mention: Focusing on optimization, surpassing immer, limu finally reaches the top of immutable data performance | dev.to | 2024-01-06

Before 3.12, although the performance of limu was several times better than immer, it was far away from structura and mutative These new immutable data operation libraries still have many gaps, so they can only be debugged friendly and several times faster than immer as a promotional point. If you want to pursue the ultimate speed, it is recommended by default. mutative.

• Paguro

  2 307 0.0 Java

  Generic, Null-safe, Immutable Collections and Functional Transformations for the JVM

• chaos

  1 275 0.0 C

  The Chaos Programming Language (by chaos-lang)

  

• InfluxDB

  www.influxdata.com featured

  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.

  

• ABRoot

  3 253 9.2 Go

  ABRoot is utility which provides full immutability and atomicity to a Linux system, by transacting between two root filesystems. Updates are performed using OCI images, to ensure that the system is always in a consistent state.

  

Project mention: What do you prefer more and why? | /r/Fedora | 2023-06-13

Maybe in the future , using a tool like abroot would allow the user to do such modifications as they prefer.

• ashos

  1 173 2.1 Python

  The immutable/mutable meta-distribution (universal bootstrapper)

  

• patterns-devkit

  5 106 2.9 Python

  Data pipelines from re-usable components

  

• Bingo Functional

  0 64 8.1 PHP

  A simple functional programming library for PHP

• NonEmptyCollections

  2 51 0.0 Kotlin

  A type-safe implementation for collections that cannot be empty. Life is too short for emptiness-checks!

  

• php-validation-dsl

  1 48 0.0 PHP

  A DSL for validating data in a functional fashion

• java-immutable-collections

  2 41 8.3 Java

  Efficient Immutable/Persistent Collections for Java

• react-mlyn

  3 20 3.2 TypeScript

  react bindings to mlyn

• kesh

  11 19 6.0 JavaScript

  A simple little programming language that could one day compile to JavaScript.

  

• Funk

  1 11 5.9 C#

  Functional programming library for C#

• Sprinkler

  1 7 9.4 Kotlin

  A non-intrusive set of extensions sprinkled over the Kotlin standard library.

  

• cjson

  1 5 4.6 Go

  an object-oriented JSON library for Go (by kerelape)

• SaaSHub

  www.saashub.com featured

  SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

  

Immutability related posts

• Mutative: Efficient immutable updates, more than 10x faster than Immer

  1 project | news.ycombinator.com | 3 May 2024

• Mutative 1.0 – A New Era in Efficient Immutable Updates

  2 projects | news.ycombinator.com | 31 Jan 2024

• How to build high-performance front-end applications based on multi-processing

  2 projects | dev.to | 19 Jan 2024

• Mutative – A 10x Faster Alternative to Immer

  1 project | news.ycombinator.com | 19 Jan 2024

• Focusing on optimization, surpassing immer, limu finally reaches the top of immutable data performance

  4 projects | dev.to | 6 Jan 2024

• Limu, the fastest immutable data JavaScript lib was borned

  3 projects | news.ycombinator.com | 21 Oct 2023

• Mutative: production-ready version coming soon, it provides the fastest immutable data updates.

  1 project | /r/javascript | 30 Jan 2023
• A note from our sponsor - SurveyJS
  surveyjs.io | 9 May 2024

  With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js. Learn more →

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