Top all-time · #1882
marimo
Company blog · marimo.io/blogprogrammingdata
marimo is the company blog at marimo.io, writing about programming and data. Since 2023, 40 different Hacker News readers have linked it 62 times, most often “Marimo: Open-source reactive notebook for Python”. It is still writing: the last post was on 2026-10-20, and you can follow it by feed.
Sometimes recommended · 9 of 36 sampled comments recommend it?
Why HN links it
HN readers link marimo.io for marimo, a reactive Python notebook pitched as a Jupyter replacement that can also run as interactive web apps. The site also hosts its blog, docs, and shared notebooks.
Summarised by Claude from a sample of 36 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Explore data and build apps seamlessly with marimo, a next-generation Python notebook. Open source, reactive, and Git-friendly. Try it free in your browser.
Most-linked posts?
- Marimo: Open-source reactive notebook for Python20 people · 21 mentions · first linked 2023-11-10
- Notebooks as reusable Python programs3 people · 3 mentions · first linked 2025-03-19
- Marimo: A Reactive Python Notebook3 people · 3 mentions · first linked 2025-01-02
- Marimo Is Joining CoreWeave3 people · 3 mentions · first linked 2025-10-30
- Lessons learned reinventing the Python notebook2 people · 4 mentions · first linked 2024-05-10
What Hacker News says?
Looks interesting! We recently started using https://marimo.io/ as a replacement for Jupyter notebooks, as it has a number of great improvements, and this seems like a movement in a similar direction.
Comment linking /
on “Atuin Desktop: Runbooks That Run”Submitted Notebooks as reusable Python programs as a story · 117 points
HN discussionI thought it should be extremely portable ("everything just works, it's native"), but it doesn't work on iOS 9.3.6. It doesn't even let me input text into the textarea... A natural extension seems to be a source code editor with syntax highlighting, like those used in https://marimo.io/ , Jupyter, https://plutojl.org/ and other notebook-like Web editors.
Comment linking /
on “Show HN: OverType – A Markdown WYSIWYG editor that's just a textarea”Submitted Representing Python notebooks as dataflow graphs as a story · 108 points
HN discussionPeople have used marimo for production web apps. They won't get you as far as writing HTML/JS. But great for internal tools or external showcases, tutorials, interactive blogs, etc. Our friends at SLAC use marimo for their internal exploration experiments and publishing interactive apps. He is an example: https://marimo.io/@public/signal-decomposition
Comment linking /@public/signal-decomposition
on “Show HN: Marimo – an open-source reactive notebook for Python”Submitted Lessons learned reinventing the Python notebook as a story · 106 points
HN discussionIt's probably an unrelated post (apologies in advance) but I wanted to shoutout to the Marimo ( https://marimo.io ), it's the only Jupyter alternative that really got me excited, it's like Streamlit and Jupyter had a kid (and the kid took the best genes from both).
Comment linking /
on “Zasper: A Modern and Efficient Alternative to JupyterLab, Built in Go”Submitted Package reproducibility in Python notebooks using uv isolated environments as a story · 37 points
HN discussionWe use Textual as an interactive way to explore compilation pipelines in xDSL [0]. As our compiler is written in Python, it was the perfect tool to build a UI in the same language as the existing codebase. After starting the `xdsl-gui` project, we found Marimo [1], a reactive notebook for Python, which also lets users build apps in Python. It's been interesting to compare these two, especially in the way they handle…
Comment linking /
on “Things I've learned building a modern TUI Framework (2022)”Submitted Closer to production quality Python notebooks with `marimo check` as a story · 31 points
HN discussionIf you haven't yet do check out Marimo [0] https://marimo.io/
Comment linking /
on “The terminal of the future”Submitted Marimo Is Joining CoreWeave as a story · 8 points
HN discussionDrawing canvas: https://excalidraw.com/ Drawing canvas: https://www.tldraw.com/ Code playground: https://replit.com/ Supabase dashboard: https://supabase.com/ Vercel dashboard: https://vercel.com/ Workout tracking: https://workout.lol/ Chatbot: https://chatgpt.com Note-taking: https://www.usememos.com/ Tax filing: https://ustaxes.org/start Python notebook: https://marimo.io/ LoL info: https://www.op.gg/ Sports match…
Comment linking /
on “React 19”Submitted Marimo raises $5M to build an open-source reactive Python notebook as a story · 7 points
HN discussionI'm working on a problem that I think logic programming might be a fit for. And I already have a lisp. Anyone interested in giving me some feedback on a mini language for heuristics? https://marimo.io/p/@paddy-mullen/notebook-b79pj7
Comment linking /p/@paddy-mullen/notebook-b79pj7
on “Clolog”Submitted Why DNB moved off Databricks notebooks and onto marimo as a story · 5 points
HN discussionThis is related to visual programming, not flow based programming. I modified a python hosted lisp interpreter to read JSON flavored lisp - JLISP. It's much easier to get a web frontend to output JSON then lisp. Then I made a simple Low Code UI built around this language. The editor has operations (invocations of lisp functions) organized left to right like a timeline in CAD software, then you can click on an indivi…
Comment linking /p/@paddy-mullen/jlisp-in-buckaroo
on “Show HN: Visual flow-based programming for Erlang, inspired by Node-RED”Submitted Marimo: Open-source reactive notebook for Python as a story · 5 points
HN discussionI think marimo is a python version of the same idea: https://marimo.io/
Comment linking /
on “Observable Notebooks 2.0 Technology Preview”Submitted Lessons learned reinventing the Python notebook as a story · 5 points
HN discussionSimilar things in this area: Marimo - recently had a lot of success with this: https://marimo.io/ RMarkdown: https://rmarkdown.rstudio.com/ Quarto: (this is more the editor really I guess) https://quarto.org/
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on “Show HN: Ledge.sh – Runnable Markdown Notes”Submitted My Python has more frontend than your JavaScript library as a story · 4 points
HN discussionThe successor to Jupyter notebook is Marimo, https://marimo.io/ because they are pure code, not code in json. First class everywhere.
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on “Deepnote, a Jupyter alternative, is going open source”Submitted Marimo Notebooks as Slides as a story · 4 points
HN discussionseems you completely missed the point. marimo does everything you're looking for in plain .py files that render as notebooks. https://marimo.io/blog/python-not-json
Comment linking /blog/python-not-json
on “Deepnote, a Jupyter alternative, is going open source”Submitted Marimo Notebook as a story · 4 points
HN discussionMarimo has been acquired (last week), does the SaaS enshitification pattern give you any pause? https://marimo.io/blog/joining-coreweave
Comment linking /blog/joining-coreweave
on “Deepnote, a Jupyter alternative, is going open source”Submitted Why Stanford scientists needed a new Python notebook as a story · 4 points
HN discussionYup, Marimo seems perfectly gittable and Deepnote looks more of the status quo. > Human-readable format: The .deepnote YAML format replaces .ipynb's messy JSON with clean, version-control and human-friendly structure for projects and notebooks. You can organize multiple notebooks, integrations, and settings into a single .deepnote project for better structure and collaboration. https://marimo.io/blog/python-not-json
Comment linking /blog/python-not-json
on “Deepnote, a Jupyter alternative, is going open source”Submitted Marimo launches VS Code and Cursor extensions as a story · 3 points
HN discussion
