Two small tools. Your files never leave your computer.
Drop in your inventory Excel. The tool reads all your finds and hands back a short list grouped by dive and grid, so you type a depth once per group instead of on every find.
Open Step 1List filled in? Drop it back with your Excel. Review the suggested depths, see how each was worked out, then download the ready CSV + images for the viewer.
Open Step 2Done both? Open the 3D Viewer →
Everything runs in your browser. No accounts, nothing uploaded.