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datasette-apps is a new plugin (launched 2026-06-19) by Simon Willison (@simonw)…

2026-06-19 · 00:00 UTC ·@simonw ·0 min read

Brief

Datasette Apps is a plugin released 2026-06-19 by Simon Willison that lets you embed custom HTML+JavaScript applications inside Datasette. Each app runs in an iframe sandbox yet can query your Datasette databases, enabling interactive, data-driven interfaces and tools hosted directly within the Datasette environment.

Why it matters

datasette-apps is a new plugin (launched 2026-06-19) by Simon Willison (@simonw) that hosts full HTML+JS applications inside Datasette.

Key details

  • Apps run in an iframe sandbox but can query the Datasette database, enabling custom interactive UIs and data-driven tooling directly within the Datasette UI.
  • Launch announcement and technical details published on the Datasette project blog (simonwillison.net link).
Source evidence

Just launched Datasette Apps - a plugin for Datasette that lets you host full HTML+JS apps in an iframe sandbox that can query your database and do interesting things with your data
simonwillison.net/2026/Jun/1…

Link

Datasette Apps: Host custom HTML applications inside Datasette

Today we launched a new plugin for Datasette, datasette-apps, with this launch announcement post on the Datasette project blog. That post has the what, but I’m going to expand on …
simonwillison.net