Dev tools · alternatives · 2026

Risp is a Lisp interpreter written in Rust. It's designed for developers interested in exploring functional programming concepts or learning how interpreters work. The project demonstrates implementing a classic… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Risp – Lisp in Rust launched in 2019; newer entries below may have overtaken it.

1. 1PA
   Parinfer – a simpler way to write Lisp▲674

   Parinfer - simpler Lisp editing

   2015 · shaunlebron.github.io · its alternatives →

2. 2
   Rust but Lisp▲218

   Rust but LISP. Contribute to ThatXliner/rust-but-lisp development by creating an account on GitHub.

   May 2026 · github.com · its alternatives →

3. 3
   LambdaLisp – A Lisp interpreter that runs on lambda calculus▲189

   A Lisp interpreter written as an untyped lambda calculus term

   2022 · woodrush.github.io · its alternatives →

4. 4
   Lisp in C#▲144

   a custom Lisp. Contribute to codr7/sharpl development by creating an account on GitHub.

   2024 · github.com · its alternatives →

5. 5
   A Lisp interpreter in C# 7▲30

   A Lisp interpreter in C# 7. Contribute to nukata/lisp-in-cs development by creating an account on GitHub.

   2018 · github.com · its alternatives →

6. 6
   Lisp Shell▲120

   A fully-featured lisp/scheme shell written in Racket. - DexterLagan/lsh

   2018 · github.com · its alternatives →

7. 7LI
   Lisp Interpreter in Rust – Paperback▲5

   The book Lisp Interpreter in Rust is now available in paperback format.

   2022 · amazon.com · its alternatives →

8. 8
   Minimal Lisp in ~70 lines of Haskell▲76

   GitHub Gist: instantly share code, notes, and snippets.

   2011 · gist.github.com · its alternatives →

9. 9FS
   Full Stack Lisp – A book in progress about writing Common Lisp apps▲338

   2016 · fullstacklisp.com · its alternatives →

10. 10
    A notebook-style Common Lisp environment▲180

    The notebook-style Common Lisp environment. Contribute to tamamu/darkmatter development by creating an account on GitHub.

    2017 · github.com · its alternatives →

11. 11
    A small programming language where everything is pass-by-value▲91

    This is a hobby project of mine that I started a few years ago to learn about programming language implementation. It was created 95% without AI, although a few recent commits include code from Gemini CLI. I started out following Crafting Interpreters, but gradually branched off that until I had almost nothing left in common. Tech stack: Rust, Cranelift (JIT compilation), LALRPOP (parser). Original title: "A small programming language where everything is a value" (edited based on comments)

    Jan 2026 · github.com · its alternatives →

12. 12
    Using Common Lisp from Inside the Browser▲111

    2025 · turtleware.eu · its alternatives →

13. 13
    Term-Lisp – A Lisp, based on pattern matching and term rewriting▲83

    A lisp dialect based on pattern matching and term rewriting - abuseofnotation/termlisp

    2024 · github.com · its alternatives →

14. 14
    A Lisp Interpreter for Shell Scripting▲114

    Redstart is a lightweight Lisp interpreter written in C++ with a focus on shell scripting. It lets you combine the expressive power of Lisp with the practicality of the Unix shell: you can run commands, capture output, pipe between processes, and still use Lisp syntax for logic and structure. Think of it as writing your shell scripts in Lisp instead of Bash.

    2025 · github.com · its alternatives →

15. 15
    Slint – A declarative UI toolkit for embedded and desktop▲291

    Slint is a declarative GUI toolkit written primarily in Rust, with API support for multiple programming languages such as C++ and JavaScript. It is designed for desktop and embedded usage. The Slint website has just been redesigned. And we added a new Royalty-Free License option besides GPL and commercial

    2023 · slint.dev · its alternatives →

16. 16
    A Language Server Implementation for SystemD Unit Files▲78

    A Language Server Protocol (LSP) implementation for systemd unit files, providing editing support with syntax highlighting, diagnostics, autocompletion, and documentation made with rust.

    2025 · github.com · its alternatives →

17. 17
    Lisp with copying GC in 537 lines of C (plus Lisp 1.5 on top)▲152

    Moved to Forgejo! Contribute to krig/LISP development by creating an account on GitHub.

    2018 · github.com · its alternatives →

18. 18
    A Lispy, embedded Forth▲61

    2017 · github.com · its alternatives →

19. 19IM
    I'm writing a leanpub book about Common Lisp web programming▲107

    2013 · lispwebtales.ppenev.com · its alternatives →

20. 20
    Sexprs – Lisp dialect written in Rust▲26

    a minimal lisp dialect REPL written entirely in rust - gabrielfalcao/sexprs

    2025 · github.com · its alternatives →

21. 21ID
    I designed a language for code golf, compiling to Common Lisp▲102

    2013 · rhoscript.com · its alternatives →

22. 22AR
    A RISC-V core in Racket▲122

    2021 · guillaume.baierouge.fr · its alternatives →

23. 23SN
    SectorLISP now fits in one sector▲323

    2021 · justine.lol · its alternatives →

24. 24IW
    I wrote a technical history book on Lisp▲252

    The book page links to a blog post that explains how I got about it (and has a link to sample content), but the TL&DR is that I could not find a lot of books that were on "our" history _and_ were larded with technical details. So I set about writing one, and some five years later I'm happy to share the result. I think it's one of the few "computer history" books that has tons of code, but correct me if I'm wrong (I wrote this both to tell a story and to learn :-)). My favorite languages are Smalltalk and Lisp, but as an Emacs user, I've been using the latter for much longer and for my…

    Feb 2026 · berksoft.ca · 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 →