About GalleryPlanner
Built for precision, driven by data.
The Scientist Behind The Code

Hi, I'm Timothy Straub. By day, I'm a data scientist at Tiny Health, working on computational biology and machine learning to decode the human microbiome. I've spent over a decade in the scientific space, where precision and data integrity are everything.
The Spark
My wife had spent years collecting a beautiful assortment of frames. When we finally had enough to fill a wall, the task fell to me to arrange them. I tried the old "lay them on the floor" method, but translating that mess to a vertical wall—with specific spacing and measurements—was a nightmare.
I needed a tool that respected exact dimensions. "About 8 inches" wasn't good enough; I needed to know exactly where to put the nail.
The Philosophy: Privacy First
As I looked for existing apps, one problem stood out: most wanted me to upload photos of my kids to their cloud servers. As a father and a data scientist, that didn't sit right with me.
I built GalleryPlanner to be Local-First. Your photos never leave your device. They live in your browser's storage, private and under your control. It's the tool I wanted for my own home, shared with you.
Where It Is Today
What started as a weekend project has grown into a full planning tool. GalleryPlanner now includes six Auto-Layout algorithms, Smart Fill AI that matches photos to frames without leaving your browser, staircase wall support, inch or centimeter units, frame grouping and locking, and a suite of install-day exports — Hanging Guide, Shopping List, Print-Ready Photos, and more.
It works on desktop and mobile with the same feature set, and .gwall backups let you move projects between devices. Core planning is free. Pro unlocks premium exports and multi-project editing for people who need more.