Alternatives

Products that do what Bluebird.swift – Promise/A+, Bluebird Inspired, in Swift 3 does

1. 1LS
   Learn Swift▲238

   2015 · books.aidanf.net

2. 2
   Swift AI▲243

   A.I. and machine learning library written in Swift

   2016

3. 3SS
   SwifterSwift, Swift3 Extensions for iOS/macOS devs▲7

   2016 · github.com

4. 4
   Nativeline AI + Cloud▲111

   Native Swift apps + a real cloud database. One prompt away.

   Mar 2026

5. 52I
   2048 in Swift▲92

   2014 · github.com

6. 6PS
   PL/Swift – PostgreSQL Functions in Swift▲84

   2018 · alwaysrightinstitute.com

7. 7SO
   SwiftAI – open-source library to easily build LLM features on iOS/macOS▲74

   We built SwiftAI, an open-source Swift library that lets you use Apple’s on-device LLMs when available (Apple opened access in June), and fall back to a cloud model when they aren’t available — all without duplicating code. SwiftAI gives you: - A single, model-agnostic API - An agent/tool loop - Strongly-typed structured outputs - Optional chat state Backstory: We started experimenting with Apple’s local models because they’re free (no API calls), private, and work offline. The problem: not all devices support them (older iPhones, Apple Intelligence disabled, low battery, etc.). That…

   2025 · github.com

8. 8SL
   Swifty – Learn to code in Swift▲108

   2015 · swifty-app.com

9. 9PV
   Promise Visualization Playground▲61

   2015 · bevacqua.github.io

10. 10FA
    FunctionKit – Approachable functional concepts brought to Swift▲51

    2018 · github.com

11. 11SP
    Simple Pascal interpreter written in Swift▲103

    2018 · github.com

12. 12CA
    Codebeat – automated code review for Swift▲68

    2016 · codebeat.co

13. 13
    Swift Devs▲101

    A community for developers and students of Swift

    2014

14. 14
    Teaching App Development with Swift▲96

    A Github-hosted curriculum on Swift for teachers by Apple

    2015

15. 15AI
    A iOS Native Bluesky App▲20

    I made a Bluesky app that's 100% Swift based. It uses the latest Liquid Glass Design language and iOS 26+ API's

    2025 · github.com

16. 16MA
    Mockingbird – A convenient mocking framework for Swift▲9

    2019 · github.com

17. 17FP
    Faqtor – Promise-based build automation for Node.js▲37

    2019 · github.com

18. 18OS
    Open Source PaaS for Swift Web Apps▲49

    2016 · serve.swifton.me

19. 19PA
    Pledge – A Lightweight Reactive Framework for Swift (No Rx Overhead)▲28

    2025 · github.com

20. 20SI
    Short Implementation of Goroutines in Swift▲38

    2014 · github.com

21. 21PT
    Promises – Type safe promise library for go▲7

    2019 · github.com

22. 22PO
    Proof-of-concept Node.JS-like interface with iOS 7 JavaScriptCore▲30

    2013 · github.com

23. 23XA
    Xr – A modern ES6 Promise-based XMLHttpRequest wrapper▲32

    2015 · github.com

24. 24X8
    Xcode 8 Source Code Extension to Generate Swift Initializers▲14

    2016 · github.com

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