In my free time, I’m working on a toy project named: Colvert. It’s allowed me to test some ideas and play with technology I’m interested (Python, DuckDB, HTMX). But more importantly, it’s software I’m using for my personal needs.

It’s fast UX that allows exploring large CSV/Parquet files using SQL. It’s refreshed as you type and get a graphic with one click. It’s much faster than a spreadsheet and as a developer I feel SQL more comfortable.

Their is a toy LLM integration for text to SQL. It’s domain I want to explore more this year.

You can see a demo here:

And get the code here (Apache 2.0 license): https://github.com/julien-duponchelle/colvert/