14th December 2025
Tool
Blog to Newsletter
— Convert blog entries into Substack newsletter content with this tool that pulls from a Datasette backup of simonwillison.net. The application fetches recent blog posts, links, quotes, and notes, then generates formatted HTML ready to paste into Substack, while also tracking which content has already been sent in previous newsletters to avoid duplicates.
Recent articles
- Datasette Agent - 21st May 2026
- Gemini 3.5 Flash: more expensive, but Google plan to use it for everything - 19th May 2026
- The last six months in LLMs in five minutes - 19th May 2026