Alternatives

Products that do what EBNF Specification of the BBC Shipping Forecast does

1. 1JA
   Jaws – a JavaScript to WASM ahead-of-time compiler▲290

   I've open sourced a JavaScript to WASM compiler. It's an experimental tool, but given the semantics I already implemented, I'm fairly certain I am able to eventually cover 100% of JavaScript spec. Any ideas, questions or critique welcomed! If you are interested in WASM, especially with new proposals like WASM GC or exception handling, it might be a good source of seeing these features in action - the project has a few thousand lines of hand written WAT so far.

   2024 · github.com

2. 2S8
   Steerling-8B, a language model that can explain any token it generates▲328

   Feb 2026 · guidelabs.ai

3. 3CW
   Code Words, a quarterly publication about programming▲181

   2014 · codewords.hackerschool.com

4. 4FG
   Fine-grained stylistic control of LLMs using model arithmetic▲85

   We developed a new framework that enables flexible control of generated text in language models. By combining several models and/or system prompts in one mathematical formula, it lets you tweak your style and combine model outputs with ease. A handy tool for those working with LLMs, looking for more fine-grained control of stylistic output. More details in our paper: https://arxiv.org/abs/2311.14479. Feedback and potential applications are welcome.

   2023 · github.com

5. 5MC
   Morning Cup of Coding – A curated newsletter of programming articles▲192

   2018 · humanreadablemag.com

6. 6LN
   Languagecrunch – NLP server Docker image▲152

   2018 · hub.docker.com

7. 7EE
   Explore EBNF Grammars Interactively▲6

   2016 · grammarling.com

8. 8CN
   Code Notes – A Gatsby theme for publishing code-related notes▲151

   2020 · zander.wtf

9. 9AS
   A syntax-diagram generator for rust's macro_rules()▲36

   2018 · lukaslueg.github.io

10. 10LB
    LaTeX Boilerplates – Plain-Text Document Production System▲104

    2015 · mrzool.cc

11. 11AC
    a compiler from Python syntax to JavaScript syntax (like CoffeeScript)▲32

    2010 · pyxc.org

12. 12EC
    Erlang code generator for Idris 2▲98

    2020 · github.com

13. 13UP
    Using Parsing Expression Grammars to rewrite source code▲63

    2016 · github.com

14. 14BL
    Bel language guide and source code with formatting▲36

    2019 · github.com

15. 15JA
    Jazzle – An Innovative, Fast Transpiler for ECMAScript 2015 and later▲61

    2017 · github.com

16. 16GD
    Gleek diagram maker – UML class, Sequence, ER diagrams, Flowcharts▲56

    2021 · gleek.io

17. 17SR
    SugarTeX – readable LaTeX language extension and transcompiler to LaTeX▲53

    2018 · github.com

18. 18BP
    Best Practices for Using Structured Output from LLMs▲21

    2024 · instill.tech

19. 19LF
    LLMs following grammar for general-purpose PLs▲11

    2024 · github.com

20. 20KC
    Keep – Create production alerts from plain English▲46

    Hi Hacker News! Shahar and Tal from Keep Here. We were tired of creating alerts for our applications, so we've built an open-source GitHub Bot that lets you write application alerts using plain English. The code is open-sourced: https://github.com/keephq/keep so you can review it yourself. Every developer and DevOps professional is familiar with the fact that in order to ensure your application works in production, you need to access your observability tool's user interface (such as Grafana, Datadog, New Relic, etc.) and carefully determine how to create alerts that…

    2023 · github.com

21. 21NL
    Notational `ls` - Never get lost in code again (hour long hack)▲29

    Hey folks, I just wanted to share a quick script I threw together called notational ls. One of the big problems of any code base (or any filesystem) is that it's hard to tell what's what - folder and file names often trade brevity for clarity. So I thought about a version of `ls` that works like this: > nls web: Where python web server files are stored ad_hoc: One time scripts ios: Our IOS code images Adding descriptions is really easy too: > nls images Images SHARED between both ios and web web: Where python web server files are stored ad_hoc: One time scripts ios: Our IOS code…

    2011

22. 22LL
    Local LLM code-generation with Gemma 4 e2B via JSON AST to Clojure▲22

    May 2026 · github.com

23. 23
    TenTags – Declarative (IR) for Documents▲16

    Declarative Intermediate Representation (IR) for Documents

    Jul 2026 · tentags.org

24. 24GG
    Grammar Generator App for Llama.cpp▲19

    llama.cpp added context-free grammar guided generation functionality. It requires passing a file in a derivative of BNF notation, which gets messy very quickly for things like JSON. To improve the experience, we built a small compiler from TypeScript interfaces to the grammar file format and have it hosted in a little browser app. See more in discussion at https://github.com/ggerganov/llama.cpp/discussions/2494

    2023 · grammar.intrinsiclabs.ai

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