OpenGlaze is the open-source platform ceramic artists and studios use to manage recipes, track firings, and collaborate on glaze development — without losing control of their data.
From recipe management to AI-powered predictions, OpenGlaze gives you the tools to document, analyze, and share your glaze work.
Store unlimited glazes with full chemistry, recipes, and visual references. Import from Glazy, Insight, or spreadsheets.
Automatic UMF calculation, compatibility analysis, thermal expansion matching, and batch scaling.
Computes exact material adjustments to hit target CTE, surface, or durability — before firing test tiles.
Context-aware glaze consulting powered by local or cloud LLMs. Ask about recipes, predictions, and substitutions.
6-stage workflow from ideation to documentation. Track every variable and build reproducible results.
Share glaze libraries with your team. Role-based access, lab assignments, and shared firing logs.
Track results across firings with gallery views. Consistent documentation for reliable comparison.
The Unity Molecular Formula (UMF) engine analyzes your recipes and predicts surface qualities, helping you make informed adjustments before you fire.
The recipe optimizer computes exact material adjustments to hit your target properties — so you fire fewer test tiles and get results faster.
Start with the exact problem you searched for: UMF, CTE, recipe scaling, Glazy workflows, DigitalFire learning, or self-hosting.
Calculate glaze chemistry, understand recipe behavior, and plan the next test tile.
Convert recipes into Unity Molecular Formula, oxide roles, and SiO₂:Al₂O₃ ratios.
Scale, document, compare, and improve ceramic glaze recipes.
Reason about crazing, shivering, and clay-body fit before firing.
Use OpenGlaze for private chemistry analysis alongside community recipe discovery.
Turn ceramic chemistry education into live recipe calculations.
Keep studio knowledge in a transparent, modifiable MIT-licensed tool.
Run OpenGlaze locally or on your own server with private recipes.
OpenGlaze is 100% open source. Every line of code is available on GitHub. Fork it, modify it, run it yourself — no restrictions.
OpenGlaze is free and open source. If it saves you a test tile, consider supporting its development — Ko-fi, Patreon, or GitHub Sponsors.
OpenGlaze is a 100% open-source ceramic glaze management system for potters and ceramic studios. It includes a UMF calculator, CTE analysis engine, computational recipe optimizer, and AI-powered glaze consulting — all self-hosted and free under the MIT license.
Yes. OpenGlaze is completely free, open-source software under the MIT license. There are no paywalls, no subscriptions, and no feature gates. You can self-host it on your own server and keep full control of your glaze recipes. Read why we chose this model.
UMF stands for Unity Molecular Formula. A UMF calculator converts raw glaze recipes (percentages of materials like feldspar, silica, and kaolin) into a normalized molecular formula. This reveals the SiO₂:Al₂O₃ ratio, flux composition, and predicted surface qualities — essential for understanding and adjusting glazes. OpenGlaze calculates UMF automatically from any batch recipe.
The OpenGlaze recipe optimizer uses computational chemistry — not AI guessing — to suggest exact material adjustments. You set a target (e.g., specific CTE, matte surface, reduced running risk) and the engine grid-searches stoichiometric adjustments, ranks them by predicted outcome, and returns the top suggestions with before/after chemistry.
No — OpenGlaze complements them. Glazy is a recipe database and community. DigitalFire provides deep ceramic chemistry education. OpenGlaze is a computational chemistry engine and glaze management tool. Many users export recipes from Glazy into OpenGlaze for UMF analysis and optimization.
Absolutely. Self-hosting is the primary deployment model. Run it locally with SQLite for personal use, or deploy with Docker and SQLite for the supported self-hosted path. Your recipes never leave your infrastructure.