Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Conduit for C++: Lazy Sequences Using the Coroutine TS launched in 2018; newer entries below may have overtaken it.

1. 1
   Code Podcast 3: Concurrency – Event Loop & Coroutines▲54

   Concurrency in UIKits, browsers and web servers

   2016 · soundcloud.com · its alternatives →

2. 2
   A hash array-mapped trie implementation in C▲171

   Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…

   2023 · github.com · its alternatives →

3. 3
   I made a zero-copy coroutine tracer to find my scheduler's lost wakeups▲49

   A cross-language, zero-copy coroutine observability framework based on the cTP shared-memory protocol, utilizing lock-free ring buffers for ultra-low overhead state tracing. - lixiasky-back/coroTracer

   Mar 2026 · github.com · its alternatives →

4. 4
   Libconcurrent – Coroutines in C▲91

   :copyright: Concurrent Programming Library (Coroutine) for C11 - sharow/libconcurrent

   2016 · github.com · its alternatives →

5. 5
   Purely Functional Data Structures▲61

   A guide to functional programming

   2016 · amazon.com · its alternatives →

6. 6OS
   Open-source SIMD-accelerated math library for C/C++/C#/Java/FORTRAN▲9

   2013 · yeppp.info · its alternatives →

7. 7
   Asymmetric stackful cross-platform Coroutines in pure C▲39

   Single header stackful cross-platform coroutine library in pure C. - edubart/minicoro

   2021 · github.com · its alternatives →

8. 8AC
   A Cheatsheet for funcy sequence, collections and functional stuff▲9

   2016 · funcy.readthedocs.io · its alternatives →

9. 9
   A REPL for practising bitwise operations, written in Rust▲5

   2017 · github.com · its alternatives →

10. 10
    Scar – A programming language for easy concurrency and parallelism▲7

    2025 · scarlang.pages.dev · its alternatives →

11. 11CO
    Coast on Clojure: A full stack framework with a catchy name▲8

    2017 · medium.com · its alternatives →

12. 12
    Writing a C++20M:N Scheduler from Scratch (EBR, Work-Stealing)▲18

    tiny_coro is a lightweight, educational M:N asynchronous runtime written from scratch using C++20 coroutines. It's designed to strip away the complexity of industrial libraries (like Seastar or Folly) to show the core mechanics clearly. Key Technical Features: M:N Scheduling: Maps M coroutines to N kernel threads (Work-Stealing via Chase-Lev deque). Memory Safety: Implements EBR (Epoch-Based Reclamation) to manage memory safely in lock-free structures without GC. Visualizations: I used Manim (the engine behind 3Blue1Brown) to create animations showing exactly how tasks are stolen and…

    Feb 2026 · github.com · its alternatives →

13. 13RA
    Recursi – a recursive memory/logic puzzle▲5

    2014 · lkozma.net · its alternatives →

14. 14TC
    The C++ Iceberg▲7

    2022 · fouronnes.github.io · its alternatives →

15. 15
    Less Slow C++▲6

    Earlier this year, I took a month to reexamine my coding habits and rethink some past design choices. I hope to rewrite and improve my FOSS libraries this year, and I needed answers to a few questions first. Perhaps some of these questions will resonate with others in the community, too. - Are coroutines viable for high-performance work? - Should I use SIMD intrinsics for clarity or drop to assembly for easier library distribution? - Has hardware caught up with vectorized scatter/gather in AVX-512 & SVE? - How do secure enclaves & pointer tagging differ on Intel, Arm, & AMD? - What's…

    2025 · github.com · its alternatives →

16. 16EW
    Efficient Wildcard Pattern Matching in C++▲5

    C++ Wildcard Pattern Matching

    2022 · partow.org · its alternatives →

17. 17CI
    Cheatcode.io, a Swift syntax reference▲9

    2014 · cheatcode.io · its alternatives →

18. 18
    Lambda Lessons▲6

    Pattern-matching, first-class functions, and more in Haskell

    2014 · stevekrouse.github.io · its alternatives →

19. 19
    Irrational▲7

    Infinite Non-repeating sequence generator

    2020 · theabbie.github.io · its alternatives →

20. 20LA
    Lightmod, an all-in-one tool for full stack Clojure▲7

    2017 · sekao.net · its alternatives →

21. 21
    Jsong: faster than light streaming JSON parser and writer in C▲9

    2017 · github.com · its alternatives →

22. 22CC
    Carburetta – C/C++ Fused Scanner and Parser Generator▲5

    2025 · carburetta.com · its alternatives →

23. 23FA
    Ferret – A Hard Real-Time Clojure for Lisp Machines▲7

    2016 · nakkaya.com · its alternatives →

24. 24
    Rust 1.1▲1

    A memory-safe alternative to C/C++ with modern semantics

    2015 · blog.rust-lang.org · its 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 →