Wuthering Waves · Fan-made tool

Tripeppi Echo Builder

A free tool to plan, optimize and manage your Wuthering Waves echo builds. Sign in with Google, get your own private build data, and build.

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What it does

Tripeppi Echo Builder helps you design and track echo sets for your characters: choose main and sub stats, split builds across echo sets, compare presets, and see build ratings and roll probabilities — all stored privately and tied to your own Google account.

Build editor

Set echoes, main/sub stats and set splits per character, with presets and coherence checks.

Probabilities & ratings

Background calculations estimate roll odds and rate your builds.

Optimizers

Tuner and cost optimizers help you reach your build goals.

Your data, your Drive

Your build data lives in a hidden app-data folder in your own Google Drive, with a local cache in your browser for speed.

How it works

You sign in with your Google account.
Your build data is stored in a hidden, app-specific folder in your own Google Drive (not visible in your regular Drive files), and cached locally in your browser.
The app reads and writes that data to display and update your builds, runs background calculations through Google Apps Script, and pulls character artwork and default data from a public GitHub repository.

Permissions & privacy

The app only requests the Google permissions it needs to work: managing your build data in a private, hidden folder of your Drive, and running background calculations that also fetch public reference content (artwork, default values) from GitHub. We do not sell or share your data. See the Privacy Policy for full details.