Dev tools · 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. An REPL oriented testing framework for Clojure(script) launched in 2021; newer entries below may have overtaken it.

1. 1CO
   Coast on Clojure: A full stack framework with a catchy name▲8

   2017 · medium.com · its alternatives →

2. 2LA
   Lightmod, an all-in-one tool for full stack Clojure▲7

   2017 · sekao.net · its alternatives →

3. 3CA
   Clause: an expressive JavaScript contract system, inspired by clojure.spec▲8

   2017 · clause.js.org · its alternatives →

4. 4AT
   A tool for making live-moddable games in Clojure▲6

   2014 · nightmod.net · its alternatives →

5. 5FA
   Ferret – A Hard Real-Time Clojure for Lisp Machines▲7

   2016 · nakkaya.com · its alternatives →

6. 6
   Maybe Haskell▲60

   See what it’s like to program in a language without null.

   2015 · books.thoughtbot.com · its alternatives →

7. 7IC
   iOS ClojureScript REPL▲12

   2015 · blog.fikesfarm.com · its alternatives →

8. 8
   Adas.ana – clojure productivity macros, a novel take on anaphoras▲5

   2018 · github.com · its alternatives →

9. 9NN
   Nightcoders.net, a cloud IDE for ClojureScript▲7

   2017 · nightcoders.net · its alternatives →

10. 10
    A REPL for practising bitwise operations, written in Rust▲5

    2017 · github.com · its alternatives →

11. 11WA
    walrus.ai – automated end-to-end tests in one line of code▲7

    2019 · walrus.ai · its alternatives →

12. 12
    Open-source implementation of Meta's Unit TestGen–LLM in Golang▲5

    2024 · github.com · its alternatives →

13. 13
    Replete 2.0▲14

    A ClojureScript REPL for iOS and Android

    2019 · replete-repl.org · its alternatives →

14. 14AS
    A smart Django/Node code generator written in Haskell▲7

    2021 · app.imagine.ai · its alternatives →

15. 15CA
    Crsh – A JavaScript based command line shell▲9

    2020 · crwi.uk · its alternatives →

16. 16JA
    jq, a lightweight commandline JSON processor▲5

    2012 · stedolan.github.com · its alternatives →

17. 17AA
    Awl, a toy Lisp language written in C and transpiled to JavaScript▲8

    2014 · skepsi.me · its alternatives →

18. 18
    Maelstrom – A Hermetic, Clustered Test Runner for Rust (and It's Fast)▲6

    2024 · maelstrom-software.com · its alternatives →

19. 19SA
    SwitchFeat – An open source feature flags and A/B testing platform▲9

    2023 · switchfeat.com · its alternatives →

20. 20
    A decorator based testing framework for TypeScript▲6

    2021 · github.com · its alternatives →

21. 21TC
    The CLI Book – Writing Successful Command Line Clients with Node.js▲7

    2016 · theclibook.com · its alternatives →

22. 22HS
    Halcyon – System for installing Haskell apps▲6

    2015 · halcyon.sh · its alternatives →

23. 23CA
    Cuppa – a testing framework for Java 8▲5

    2016 · cuppa.forgerock.org · its alternatives →

24. 24
    The Julia Language▲10

    A high-level, high-performance dynamic programming language

    2017 · julialang.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 →