GlassyWassy is the cozy digital bench for glass fusing artists — check COE compatibility, build multi-segment kiln schedules, and log your sheet stash, 100% offline.
Built for warm glass creators who want fewer stress cracks and more finished pieces.
Verify expansion compatibility across COE 90, 96, and specialty glass ratings before you ever fire the kiln.
Calculate frit weights, powder gradients, stringers, and confetti density for layered fused projects.
Compute exact thickness and volume needs — including the 3mm vs 6mm rule — for target float shapes.
Program and store custom thermal schedules for tack fusing, full fusing, fire polishing, and slumping.
Determine hold times and cool-down rates based on peak glass thickness, so nothing cracks overnight.
Catalog sheets by manufacturer — Bullseye, Oceanside, Wissmach — plus color code, transparency, and size.
Track ceramic and metal molds, drop rings, and casting forms alongside their target glass dimensions.
Compute kilowatt-hour usage and estimated electricity cost for every kiln run, right from your studio.
Pick two glass types the way you would at the bench, and see whether they're safe to fuse together.
🔥 We're a small crew of glass fusers, kiln tenders, and app builders who kept scribbling ramp schedules on sticky notes and guessing whether a scrap of amber cathedral glass would play nice with a sheet of opal — so we finally built the tool we wished existed.
🧊 Our mission is simple: take the guesswork out of warm glass. COE math, thermal ramps, and annealing physics shouldn't require a slide rule and a decade of trial-and-error cracks to get right.
📐 GlassyWassy gives you a COE compatibility guard, a multi-segment kiln schedule logger, an annealing time calculator, and a full sheet-and-mold inventory — all running quietly offline, right at your bench, from first cut to final unstacking.
✨ Less cracking, more creating — GlassyWassy is the calm in your kiln room.
GlassyWassy: Kiln Fusing & Glass Art Studio was built on one simple principle — your inventory, your schedules, and your firing notes belong to you alone. The app does not collect, store, or transmit any personal data whatsoever. There are no accounts, no logins, and no cloud sync. Every calculation and every log entry lives entirely on your own device.
💌 Got a question about COE math, a feature request, or just want to show off your latest kiln-fired bowl? We'd genuinely love to hear from you.
⏱️ We read every message ourselves and typically reply within 24–48 hours.