Placemark have released a neat map-data conversation tool that transforms data between pretty much any geo-data file format. Upload files or paste text, convert and then download the converted data in no time.
From the announcement post:
In the course of implementing lots and lots of file formats in Placemark, we’ve ended up with some great, reusable tools. I figured it’d be pretty useful to just let anyone use those things, on a convenient drag & drop (or click, or paste) page. I hope it’s useful. Happy Friday!
This list will go out of date, but right now - you can convert:
- GeoJSON, GeoJSONL
- Zipped ESRI Shapefiles
- Encoded polylines
- Extract data from GeoTIFFs & JPEGs
- KML & KMZ
This is a tool you want to bookmark.