Life & fun · alternatives · 2026
24 alternatives to Http4k: Server as a Function. In Kotlin. Typesafe. Without the Server
An overview of the Kotlin
Http4k is a Kotlin-based HTTP toolkit that enables developers to build and consume HTTP services using functional programming principles. It provides a lightweight, typesafe approach to handling HTTP requests and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Http4k: Server as a Function. In Kotlin. Typesafe. Without the Server launched in 2017; newer entries below may have overtaken it.
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ForewordJavalin is a Java and Kotlin web framework which focuses on simplicity and Java/Kotlin interoperability.It supports WebSockets and HTTP3, and it uses...
2022 · javalin.io · its alternatives →
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2017 · javalin.io · its alternatives →
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Javalin - A lightweight Java and Kotlin web framework. Create REST APIs in Java or Kotlin easily.
2017 · javalin.io · its alternatives →
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A realtime server for the modern web
2016 · deepstream.io · its alternatives →
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Kotlin Money▲427Manipulating monetary amounts is a common computing chore. However, no mainstream language has a first-class data type for representing money, it’s up to programmers to code abstractions for it. This isn’t an issue per se until dealing with rounding issues from operations like installment payments (e.g., buy now, pay later), foreign exchange, or even simple things like fee processing and tax collection. Inspired by my days at N26 Brasil dealing with these challenges, I introduce Money: a Kotlin library that makes monetary calculations and allocations easy.
2024 · blog.eriksen.com.br · its alternatives →
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Hi HN! We’re Yann, Edouard, and Bastien from Koyeb (https://www.koyeb.com/). We’re building a platform to let you deploy full-stack apps on high-performance hardware around the world, with zero configuration. We provide a “global serverless feeling”, without the hassle of re-writing all your apps or managing k8s complexity [1]. We built Scaleway, a cloud service provider where we designed ARM servers and provided them as cloud servers. During our time there, we saw customers struggle with the same issues while trying to deploy full-stack applications and APIs resiliently. As…
2023 · koyeb.com · its alternatives →
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Provides a Kotlin/Java library to create a random json string - mangatmodi/RandomJson
2019 · github.com · its alternatives →
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Karve▲71Not much to say. I work on windows, I hate postman, I need to manage bunch of .http files across multiple repositories. So I built a fast and native tool for myself and published it if you want to try it too. Any feedback would be nice, I really want it to be The obvious native Windows home for .http files
Aug 2026 · karve.dev · its alternatives →
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Backend APIs often grow into large orchestration classes full of duplicated calls and manual concurrency. I’ve been working on Mosaic, a Kotlin framework that composes responses out of small, request-scoped “tiles.” Each tile runs once per request, dependencies resolve automatically, and independent tiles execute in parallel without boilerplate. It’s still early (v0.2.0), but working today for caching, concurrency, and testability. Curious to hear feedback on the approach. GitHub: https://github.com/Nick-Abbott/Mosaic Maven Central: org.buildmosaic:mosaic-core:0.2.0
2025 · github.com · its alternatives →
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A no-dependencies HTTP client library for browsers and Node.js with a promise-based or Node.js-style callback-based API to progress events, text and binary file upload and download, partial response body, request and response headers, status code. - jakutis/httpinvoke
2013 · github.com · its alternatives →
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KORE.io▲88A fast SPDY capable web server for web development in C
2015 · kore.io · its alternatives →
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Transpile ES2017 async/await to vanilla ES6 Promise chains: a Babel plugin - babel/kneden
2016 · github.com · its alternatives →
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CORSJavalin 0.4.0 adds built-in CORS support with app.enableCorsForOrigin(
2017 · javalin.io · its alternatives →
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Hey everyone! Over the past two years I threw myself back into full-time engineering with a simple goal: write code that gives back to the community. After a lot of late-night FOMO (“AI will do it all for us, right?”) and some painful production incidents, I finally turned my weekend project into an open-source library. [ What is Solidis? ] - Super-light (< 30 KB) RESP2/RESP3 client with zero runtime deps and first-class ESM/CJS support. - Fully tree-shakable – import only the commands you need. - Written with SOLID principles & full TypeScript typings for every command. - Designed…
2025 · github.com · its alternatives →
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Our API Management platform is fast, scalable, modern. Including an open source API Gateway, Analytics, Dev Portal and Dashboard
2014 · tyk.io · its alternatives →
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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 →
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2015 · cloud.tyk.io · its alternatives →
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HTTP client/libcurl TUI front end in Rust, with request + key storage - PThorpe92/CuTE
2023 · github.com · its alternatives →
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Pragmatic programming language for JVM and Android
2016 · blog.jetbrains.com · its alternatives →
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Java HTTP Client in OOP style. Contribute to Vatavuk/verano-http development by creating an account on GitHub.
2019 · github.com · its alternatives →
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Foursquare client written in kotlin. Contribute to chemouna/Nearby development by creating an account on GitHub.
2016 · github.com · its alternatives →
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Kotlin▲3Statically typed programming language targeting the Java /JS
2015 · kotlinlang.org · its alternatives →
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Millions of developers have used quicktype to generate ten billion lines of typesafe models, serializers, and validators from JSON, JSON Schema, and GraphQL in TypeScript, Python, Swift, C#, Go, Rust, Kotlin, Java, C++, Zod and more. Use it in the browser, from the command line, or give it to your A
2017 · quicktype.io · its alternatives →
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- Deepstream.io – open-source real-time server with pub/sub and data sync alternatives
- Kotlin Money alternatives
- Run globally distributed full-stack apps on high-performance MicroVMs 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 →