What a browser app gives up, and what it doesn't
Worth being straight about the trade, because "no account" cuts both ways. Because your chart lives in your own browser rather than on our servers, it doesn't sync between devices and there's no live collaboration — you can't both edit from separate phones. Clearing your browser data clears the chart, the same as deleting a local file. If you want a copy that travels, export the PDF; that's the portable artefact.
What you don't give up is the actual work. Unlimited guests and tables, every layout template, drag or tap seating, live per-table counts, and print-ready export are all here without a signup wall, a guest-count cap, or a fourteen-day clock. Most wedding planning tools put the seating chart behind an account so they can email you; the honest version of that trade is a tool that just works and an email form you can ignore.
Phone or laptop?
Use a laptop for the build if you have one. Laying out ten or twelve tables wants canvas space, and pasting a hundred-name guest list wants a keyboard — on a phone that's the fiddly part, and we'd rather say so than pretend a 6-inch screen is equivalent.
The phone is genuinely good for everything after the build. On small screens the layout stacks — chart above, guest list below, export buttons pinned to the bottom — instead of squeezing a desktop split-pane onto a phone. Reviewing the chart in bed, moving two guests after a Thursday cancellation, or pulling the PDF up at the venue walkthrough all work fine one-handed.
Open it below
The editor starts on a rounds-of-ten ballroom so there's something real to move around. Swap in your own guest list, or start from a template that matches your room, or browse layout ideas first. When the count stops moving, export the PDF and see the board guide for turning it into the sign guests read.