SmoothCSV

I'm just a user who still has to manipulate CSV from time to time. I've struggled to find a decent CSV editor for macOS. There's Modern CSV but it feels very far from a native experience. Some time ago I tried Easy CSV Editor, according to files in my iCloud Drive, but I did not stick with it for some reason. SmoothCSV can best be described as "VSCode for CSV", allowing quick loading of huge files, complex transforms, tons of tools with a quick command palette, and even SQL querying of the data! It's apparently been in development in one form or another for 15 years, and it shows. I just sent the developer some coffee money, because an app of this quality being free is almost a crime.

I love this product because it’s unbelievably fast and lightweight. I recently tried opening a 16MB CSV file on my Mac using Numbers, and it was painfully slow — basically unusable. But with SSCSV, the file opened in less than a second. It feels almost magical how instantly it loads such large files. That speed and simplicity are what make this tool so impressive.