Stellar Optimizer FAQ

Questions about the Genshin Impact build optimizer: what it does, your data, importing artifacts and the computed builds.

What is Stellar Optimizer?

Stellar Optimizer is a free Genshin Impact build optimizer that runs in your browser. You import your artifacts and weapons, pick a character and a target (a talent's damage, healing or shield), and it searches the combinations of artifacts you own for the build that gives the highest number, using the game's damage formulas.

Is it free? Do I need an account?

It is free, with no account and no ads.

Where is my data stored?

In your browser's storage on your own device. Your artifacts, weapons and characters are never uploaded, and you can export a backup file at any time. The site counts visits with cookieless Cloudflare Web Analytics.

How do I import my artifacts?

Scan your inventory with a scanner such as Inventory Kamera, Irminsul or AdeptiScanner, which save a GOOD file, then import that file in the app. You can also add artifacts from screenshots or by hand.

Which characters are supported?

Every playable character.

How does it find the best build?

It goes through the artifact combinations you own that fit your rules (sets, main stats, minimum stats such as Energy Recharge) and keeps the builds with the highest result. Combinations that provably cannot win are skipped, so millions are checked in seconds, on your graphics card when the browser supports WebGPU.

Where do the "best build" rankings on character pages come from?

The optimizer computes them: for Mitya it ranks artifact sets, main stats and weapons for a DPS build, with KQM Standards artifacts in one stated situation. Each page lists its assumptions. Your best build depends on your own artifacts and team, which the app works out for you.

Does it include teams and buffs?

Yes. Add up to four characters to a team and their buffs, elemental resonance and reactions are included in the damage.