Mike Bostock

A little demo of reactive SQL in Observable Notebooks 2.0, first using (native) DuckDB to bake data from a remote source, followed by DuckDB-Wasm to create and query reactive views in the client. Should be released this week!

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Observable Notebook Kit and Desktop 1.1 are out. Headline feature: database connectors! 🎉 You can now query DuckDB, SQLite, Postgres, and Snowflake directly from notebooks. And it’s self-hosted. And it saves results automatically for performance and stable analysis. observablehq.com/notebook-kit...

Observable Plot has crossed 100,000 weekly downloads (and very close to 5,000⭐️s)! observablehq.observablehq.cloud/oss-analytic...

Observable Notebook Kit and Desktop 1.3.0 are out, featuring data loader cells. You can now (finally!!) write Python and Node.js in notebooks. 🐍 observablehq.com/notebook-kit...

Observable Notebook Kit & Desktop 1.4 now support TypeScript cells, along with TypeScript for Node.js data loader cells. (Just type stripping, but greatly helps interoperability.)

Episode one of the Observable Podcast! Wherein @toph.me and I chat reactivity, mistakes in designing Observable JavaScript, and vanilla JavaScript in Notebooks 2.0. www.youtube.com/watch?v=AUh5...

Reactivity in vanilla JavaScript | Observable Podcast

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I am excited about (and proud of) Observable Framework 1.1. It features Windows support, self-hosted npm: imports, and CommonMark compatibility. And it’s just three weeks since launch! More to come.

Release v1.1.0 · observablehq/framework

Windows support (and Node 18, too) 🎉 Framework now supports Windows! Thank you upvoting #90. 👍 Framework internally uses POSIX path delimiters (forward slashes /), and now converts to the Windows p...

I am surprised that Fetch doesn’t yet have a way to track upload progress — you have to go back (20+ years) to XMLHttpRequest! There’s a nice observer proposal linked here though. jakearchibald.com/2025/fetch-s...

Fetch streams are great, but not for measuring upload/download progress

They're inaccurate, and there are better ways.

The Notebooks 2.0 gallery now has a dedicated page! observablehq.com/notebook-kit...

A reviver/replacer technique for dates in JSON that won’t silently corrupt your data. observablehq.com/@mbostock/th...

In this week’s Observable Podcast, co-CEO Julio and I discuss our mission to make computation easier for humans to use and understand. We need a better medium! youtu.be/0uBOL9NP8Iw?...

What even is Observable? | Observable Podcast

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Reply to @ocks.org

And last, the new editor’s AI is pretty mind-blowing 🤯, focused on quick ideation and iteration… www.youtube.com/watch?v=BeH6...

Vibe coding a choropleth map in Observable Notebooks 2.0

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A small but significantly useful victory: I got file association working with Observable Desktop.

Episode zero of the new Observable Podcast! Wherein @toph.me and I discuss the magic of Next.js. youtu.be/B2BFi3SyQM4

Does Next.js have too much magic? | Observable Podcast

YouTube video by Observable

Reply to @ocks.org

Please try out Observable Desktop and Observable Notebook Kit today. We’d love your feedback, bug reports, ideas, etc.! github.com/observablehq...

GitHub - observablehq/notebook-kit: A command-line tool for building static sites from Observable Notebooks

A command-line tool for building static sites from Observable Notebooks - observablehq/notebook-kit

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Many of your examples are ported from our Observable Plot examples, and we put a lot of work into them! It would be nice if you gave us credit by linking back to our originals in cases when you ported. Thank you, and nice work.

Observable Notebook Kit and Desktop 1.2.0 add Google BigQuery and Databricks database connectors! observablehq.com/notebook-kit...

Reply to @ocks.org

First and foremost, we’re unlocking file-based workflows for notebooks — edit them locally, check them into git, build them in CI, self-host them as superfast static sites, integrate them into custom apps, etc. etc. We’re doubling down on file over app.

Reply to @ocks.org

Second, Notebooks 2.0 is now (finally) vanilla JavaScript! It’s the standard syntax that works everywhere and like you expect. Say goodbye to quirky Observable JavaScript, and hello to const, let, static import, etc. observablehq.com/notebook-kit...

Reply to @ocks.org

And ya, it’s been a minute (or 214 days) since the last Plot release. We’ll get back to soon and ship a 1.0 release. Been busy between Canvases and Notebooks 2.0.

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It isn’t much work to support R/Rscript data loader cells (at least if you don’t mind a lack of syntax highlighting)… we’ll get to it soon. github.com/observablehq...

R data loaders · Issue #79 · observablehq/notebook-kit

Let’s add R, or more specifically Rscript, as a supported interpreter for data loader cells. The hard part is probably the lack of an officially supported Lezer grammar for the R language, but ther...

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On local computer using DuckDB’s Node.js (neo) bindings. It’s built-in to Observable Desktop and Notebook Kit. github.com/observablehq...

Latest podcast includes a sneak preview of new AI for notebooks!

Observable @observablehq.com

In episode 3, Toph & Visnu reflect on three eras of building Observable features atop LLMs, from a RAG-driven notebook sidebar (2023) to a low-code–focused Canvases (2025) to a new experimental prototype built upon the idea of an append-only notebook, Observable Chat. www.youtube.com/watch?v=K_zz...

Three eras of Observable AI | Observable Podcast

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‎apps/web/src/app/(app)/@sidebar/[at]/page.tsx

how many “app”s can i put in a single path