This one is really slick, I wonder how it works with larger data sets. I'll check it out later. Geojson.io is a nice one but I second your comment, anything on the larger side it just crashes for me. I end up just using QGIS with a text editor open for the geojson editing. It ends up being a game of trial and error that gets very tedious.

Good point. Performance is a problem on these tools and I need to do some work on that front as well. My email is on geoman.io - send me a data set and let me try. I will make improvements here in the next weeks.

Another feature which geojson.io provides over the tool presented here, is the table view which makes editing / formating / adding information to a large set of features simple and accessible.

File management (including open local and hosted files) and the availability of different map layers are appreciated features for daily work as well.

meta data management is definitely on my list - thanks for your feedback

I've also been using geojson.io for most of my workloads. The large dataset handling definitely leaves something to be desired.

One thing that they do offer though is the option to view satellite map data, which doesn't seem to be available here. I'd love to give this a shot, but most of my workloads are really imagery dependent, so geoman doesn't seem to be an option.

Thanks for the feedback, consider it done (very soon)