ChatDB

When you need to quickly convert a CSV to Parquet or peek at a Parquet file's schema without firing up a heavy IDE, ChatDB is the kind of tool you end up bookmarking. It's free, works offline, and the entire operation happens in your browser, which matters if you're handling sensitive data and don't want it uploaded to some server. The recent additions of GeoJSON and Shapefile viewers plus KML/GPX converters make it a decent lightweight option for GIS folks who just need to inspect or convert a file, though you'll still want QGIS for real spatial analysis. The catch is scale and workflow. ChatDB is a single-shot toolkit, not a platform. There's no API, no headless mode, no batch processing. If you're building automated pipelines that need repeatable conversions, you'll be reaching for pandas, DuckDB, or a proper ETL tool instead. Large files—think hundreds of megabytes—can also get sluggish, and the browser environment is fundamentally limited compared to a native process. For enterprise teams that need user management, audit logs, or shared workspaces, this isn't it. Compared to other browser-based converters, ChatDB's breadth is what sets it apart: it covers image, audio, video, and now GIS formats, not just tabular data. But that breadth means it excels at exploration, not transformation at scale. We'd pick it for one-off conversions, quick profiling, or when privacy is non-negotiable. For anything recurring, build it into a real pipeline. Watch out for the AI query features—they're cool but basic. You get natural language CSV and Parquet AI, and you can write SQL against CSV, but don't expect enterprise-grade data discovery. It's a taste of what's possible, not a replacement for a real data catalog.