Release: datasette 1.0a33
Simon Willison’s Weblog
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11th June 2026
Release
datasette 1.0a33 — An open source multi-tool for exploring and publishing data
This alpha is a significant step on the road to a stable 1.0, finally extending the ?_extra= pattern I introduced in Datasette 1.0a3 to cover queries and rows in addition to tables. That pattern is also now documented!
I wrote a whole lot more about the new release on the Datasette project blog: Datasette 1.0a33 with JSON extras in the API.
Because API explorer tools are almost free to build now I had Claude Fable 5 in Claude Code (for the plan) and GPT-5.5 xhigh in Codex Desktop (for the implementation) build me this custom extras API explorer to help demonstrate the feature:
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