My builds
Everything you save in any class calculator lands here. Nothing leaves your device: no account, no cloud, no sign-up. Your builds live in this browser's own storage (it's called local storage). From here you can rename a build, reopen it in its calculator, delete the experiments that didn't pan out, export everything as JSON (just a plain text file) for safekeeping, or send two builds to the compare tool to see exactly what changed.
Looking for ideas? Browse the starter builds or start a new build in any class calculator.
Import a build link
Got a build from a friend? Paste their share link here and it opens in the right class calculator:
Common questions
Where are my builds actually stored? In this browser's built-in storage (local storage), grouped by class. Nothing is uploaded anywhere. Clearing your browser data wipes them, so export to JSON if a build matters to you.
Can I move builds to another device? Yes. Export everything as JSON here, then import that file on the other device. A share link works too. Paste it above and it opens in the right calculator.
How do I compare two of my builds? Press "Send first two to compare" to jump straight to the compare tool. Or open the compare tool yourself and paste any two share links in by hand.