Dev tools · alternatives · 2026
24 alternatives to AsyncNinja
Concurrency library for Swift
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. AsyncNinja launched in 2016; newer entries below may have overtaken it.
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Concurrency in UIKits, browsers and web servers
2016 · soundcloud.com · its alternatives →
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2022 · wishawa.github.io · its alternatives →
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Hey HN, this is Will and David from Fortress (https://news.ycombinator.com/item?id=41426998). We use a lot of async Rust internally, and created this library out of a need for an async-aware concurrent hashmap since there weren’t many available in the Rust ecosystem. Whirlwind is a sharded HashMap with a fully asynchronous API. Just as dashmap is a replacement for std::sync::RwLock, whirlwind aims to be a replacement for tokio::sync::RwLock. It has a similar design and performance characteristics to dashmap, but seems to perform better in read-heavy workloads with tokio's…
2024 · github.com · its alternatives →
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JavaScript engine + state machine with threads and without callbacks - amaksr/nsynjs
2017 · github.com · its alternatives →
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Short implementation of goroutines in apple swift. Contribute to billylindeman/swiftgo development by creating an account on GitHub.
2014 · github.com · its alternatives →
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Actor runtime and distributed systems framework for Rust - LeonHartley/Coerce-rs
2019 · github.com · its alternatives →
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Hi, I’m Mikkel and I’m building Async, an open-sourced developer tool that combines AI coding with task management and code review. What Async does: - Automatically researches coding tasks, asks clarifying questions, then executes code changes in the cloud - Breaks work into reviewable subtasks with stack diffs for easier code review - Handles the full workflow from issue to merged PR without leaving the app Demo here: https://youtu.be/98k42b8GF4s?si=Azf3FIWAbpsXxk3_ I’ve been working as a developer for over a decade now. I’ve tried all sorts of AI tools out there including…
2025 · github.com · its alternatives →
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Coroutines, structured concurrency and CSP for Swift on macOS and Linux. - Zewo/Venice
2015 · github.com · its alternatives →
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Asynchronous C networking library with HTTP server, WebSockets, reverse proxy, HTTP/2 gRPC client, TLS and event loop. - Softmotions/iwnet
2022 · github.com · its alternatives →
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Generate accurate and informative tree dumps of asynchronous tasks. - risingwavelabs/await-tree
2025 · github.com · its alternatives →
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AsyncDisplayKit ▲69iOS framework keeps complex UIs smooth and responsive
2014 · texturegroup.org · its alternatives →
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JSON to SwiftData and back. SwiftData Sync. . Contribute to 3lvis/SwiftSync development by creating an account on GitHub.
2015 · github.com · its alternatives →
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Composable async primitives with cancelation, control over scheduling, and coroutines. Superior replacement for JS Promises. - mitranim/posterus
2017 · github.com · its alternatives →
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Utility function to parallelise pipelines of Python asyncio iterators/generators - michalc/asyncio-buffered-pipeline
2020 · github.com · its alternatives →
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Learn Swift 6 Concurrency with realtime thread visualization
Dec 2025 · apps.apple.com · its alternatives →
- 24
Digital Carburetor Synchronizer. Contribute to zilberas/CarbSync development by creating an account on GitHub.
2020 · github.com · its alternatives →
Also compare
- Code Podcast 3: Concurrency – Event Loop & Coroutines alternatives
- Async UI: A Rust UI Library Where Everything is a Future alternatives
- Ensembles alternatives
- Whirlwind – Async concurrent hashmap for Rust alternatives
- Nsynjs – JS engine with stoppable threads and without callback hell alternatives
- Timekit 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 →