About This Launch
A client trusts you with their files. You cannot upload their CSV. On Monday you need to put warehouse stock on every catalog product, keeping blank stock as is and clearing out leftovers, all on this computer.
Lite cannot do that join. Lite is free for two files: stack and dedupe. Kitchen handles that join for a one-time $19, and Polar emails you the finished zip. You get the sheet back without ever uploading it.
Why I Built This
I built Plainrow to make CSV work safer and simpler: files stay on the user's computer instead of being uploaded. The free Lite tier helps people try it, while Kitchen adds more capability for a one-time price.
Launch Details
CategoryDeveloper Tools
StageLive
ListedSeptember 11, 2026