Life & fun · alternatives · 2026
24 alternatives to Fp-filters – A curated collection of TS/JS array filter functions
Hello HN, I wanted to share a library I've been working on called: fp-filters - A curated collection of 130+ common-use filter functions that are written (and can be used) in a functional programming style. Why I built this: I have noticed in several codebases the tendency to keep writing the same or similar filter functions over and over again. Often inlined, taxing readability. And realized that most of them do pretty much the same N things. Therefore they could be isolated, curated, and maintained separately. fp-filters provides 130+ composable, point-free filtering functions that make…
fp-filters is a TypeScript/JavaScript library containing over 130 reusable filter functions designed for functional programming. It addresses the problem of filter logic being repeatedly written inline across codebases… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
A curated list of JS/TS ready-to-use array filters
Dec 2025 · github.com · its alternatives →
- 2
Hi HN, I built fp-pack, a small TypeScript functional utility library focused on pipe-first composition. The goal is to keep pipelines simple and readable, while still supporting early exits and side effects — without introducing monads like Option or Either. Most code uses plain pipe/pipeAsync. For the few cases that need early termination, fp-pack provides a SideEffect-based pipeline that short-circuits safely. I also wrote an “AI agent skills” document to help LLMs generate consistent fp-pack-style code. Feedback, criticism, or questions are very welcome.
Jan 2026 · github.com · its alternatives →
- 3
Hey all, I just released v2.0.0 of FilterQL, a query language and TypeScript library. This version adds support for Operations, which allow you to transform the data after filtering. If you think this would be useful in a project you're working on, give it a try and let me know what you think!
2025 · github.com · its alternatives →
- 4
Functional Reactive Programming Library for JavaScript - santoshrajan/frpjs
2016 · github.com · its alternatives →
- 5
Hi all, I've made a javascript library to simplify searching/sorting/filtering in arrays of objects. Its inspired by both GraphQL and SQL, but implemented using javascript Proxies. Instead of creating a new language, its all just javascript. I've made it as part of an experimental database, which uses javascript as the query engine. The normal javascript map/reduce/sort functions are quite difficult to master for junior developers. JAQT is easier to explain, and can still be used in combination with any existing array functions. Please let me know what you think of the…
2024 · github.com · its alternatives →
- 6
Faster user-land reimplementations for several common builtin native JavaScript functions. - codemix/fast.js
2014 · github.com · its alternatives →
- 7
Crossfilter▲63Fast multidimensional filtering for coordinated views
2018 · square.github.io · its alternatives →
- 8
An experimental language which adds functional programming features to Go. - albrow/fo
2018 · github.com · its alternatives →
- 9
Full-stack CRUD, simplified, with SSOT TypeScript entities - remult/remult
2022 · github.com · its alternatives →
- 10
A tiny (~1kB minzipped) and extremely fast library for creating reactive observables via functions. - maverick-js/signals
2022 · github.com · its alternatives →
- 11
A framework for functional types and operations designed to fit naturally into Swift. - mpangburn/FunctionKit
2018 · github.com · its alternatives →
- 12
I have spent several years working on search engines in the backend and have now utilized that experience to develop a fuzzy search library for the frontend. It's fast, accurate and can be used for all languages. It should be easy to integrate into your Javascript / Typescript projects. If you test it and find any edge cases that did not work for you please let me know. The implementation is based on 3-grams by the book, augmented with a novel trick of sorting the characters within the 3-grams for enhanced accuracy. For a detailed explanation you may refer to my related blog post at…
2024 · github.com · its alternatives →
- 13
FSET▲93A JSON Schema editor, no more writing json schema by hand
2021 · fset.app · its alternatives →
- 14AL
2017 · maierfelix.github.io · its alternatives →
- 15
## What is a multimethod?
2011 · krisjordan.com · its alternatives →
- 16
Hey HN! Roughly 4 years ago I started building a lazy functional iteration library for JS/TS. I had a few goals for the library: - Supporting sync, sequential async, and concurrent async iteration - Limiting it to a small number of orthogonal concepts that compose beautifully to solve problems - Making it fully tree-shakeable I built it for myself and have (mostly) been its only user as I refined it. I've used it in lots of personal projects and really enjoyed it. I recently decided it would be nice to spread that enjoyment so I created a documentation website complete with a playground…
2024 · lfi.dev · its alternatives →
- 17
FilterGrade▲128Gorgeous photography filters for Photoshop
2015 · filtergrade.com · its alternatives →
- 18
Hey HN, I’m sharing ts-chan, an NPM package providing Go-like concurrency primitives, including channels and select statements, for TypeScript and JavaScript, supporting Node.js, Deno, Bun, and browsers. This is something I've built to make implementing Go-style "control loops" feasible in JavaScript, but there are many possible applications. Highlights: - Features a FIFO processing Chan class and versatile Select class for concurrency control. - Supports buffered channel and channel close semantics very close to Go's. - TypeScript-first implementation. - Defines a simple "channel protocol"…
2023 · github.com · its alternatives →
- 19
Python library for creating data pipelines with chain functional programming - EntilZha/PyFunctional
2017 · github.com · its alternatives →
- 20
I've been spending some time coding fp. It is a programming language heavily inspired by the language John Backus described in his 1977 Turing Award lecture. There's plenty of examples in the projects github repository for the interested!
2022 · github.com · its alternatives →
- 21
C++14: bringing in those expressions that you wish you had, Lazily evaluated, compossible generators, maps, filters, ranges and more... - GitHub - SaadAttieh/lazyCode: C++14: bringing in those expressions that you wish you had, Lazily evaluated, compossible generators, maps, filters, ranges and more
2018 · github.com · its alternatives →
- 22WJ
2014 · fitzgen.github.io · its alternatives →
- 23
Initially I started building this for my own projects. The main goal was to define a unified "blueprint" allowing me to develop multi-platform apps using the same code, without code generation. I wanted to be able to develop the same functionality on web, desktop, cli, server, mobile, whatever... I've been able to achieve this by relying on TypeScript, a 4-layer architecture (UseCase => App => Product => Target) and dependency injection. This mechanism allows me to use whatever tech stack I want, provided the good adapters are developed. For instance, I have pre-built ones : node express…
2025 · github.com · its alternatives →
- 24
Introducing the Code ChatGPT Plugin - a new era of seamless interaction between ChatGPT and your codebase. This TypeScript Code Analyzer furnishes a suite of utilities to analyze TypeScript code, enabling ChatGPT to "talk" with YOUR code. Fetch a list of all the files in your project, list of every function in a TypeScript or JavaScript file, or even get the content of a specific function, all while staying in your conversation with ChatGPT. With accessible API endpoints, you can effortlessly navigate your codebase and ask ChatGPT anything you can think of about it. Say goodbye to the days…
2023 · github.com · its alternatives →
Also compare
- fp-filters (JavaScript / TypeScript) alternatives
- FP-pack – Functional pipelines in TypeScript without monads alternatives
- FilterQL – A tiny query language for filtering structured data alternatives
- Frpjs – Functional reactive programming library for JavaScript alternatives
- JAQT – JavaScript Queries and Transformations alternatives
- Fast.js – faster reimplementations of native JavaScript functions alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →