About WuWa Tools

Free calculators & guides · 7 languages · No login

WuWa Tools is a free, browser-based set of calculators and guides for Wuthering Waves (鸣潮) — Kuro Games' open-world action RPG. It started in 2026 with one goal: take the numbers players actually need — echo scoring, pull odds, ascension costs, banner timing — which were scattered across spreadsheets and region-locked sites, and put them in one fast, accurate place, in your language, with no account or login required.

What we offer: 6 interactive tools (Echo Scorer, Pull Calculator, Material Planner, Event Calendar, Weapon Compare, Build Card Generator) + 23 in-depth guides, all available in 7 languages (English, Japanese, Korean, Chinese, German, French, Russian). Every tool runs entirely in your browser — no server, no data collection, no login.

What we believe

1. Accurate, and you can check it.

The calculators run on Wuthering Waves' published mechanics — the soft-pity probability curve, substat roll ranges, ascension and Forte costs. Every formula is coded from the actual game values and is visible in each tool's JavaScript source, so any number can be verified rather than taken on faith.

Data sources: Game mechanics are extracted from official patch notes, verified against in-game testing, and cross-referenced with community databases. All data is verified for the current game version and updated within 24 hours of each patch. The Event Calendar banner schedule is sourced from official Kuro Games announcements and verified community datamines.

2. Your data stays in your browser.

WuWa Tools has no backend database. When you enter echo substats into the Echo Scorer or pulls into the calculators, those values are processed in JavaScript locally and never sent to a server. We can't see your account, your pull history, or your build — because we don't store them.

3. Multilingual, and kept current.

Wuthering Waves is a global game, so WuWa Tools ships in 7 languages — English, Japanese, Korean, Simplified Chinese, German, French, and Russian — with terminology matched to each region's official client. The tier lists and guides are synthesized from official patch notes and the community's most reliable databases, cross-checked and updated each patch.

The tools

  • Echo Scorer — Grade any echo's substats from S to D against role-based weight presets (Crit DPS, Liberation, Heavy Attack, Sub-DPS, Healer). Tells you whether to spend Tuners before you waste them.
  • Pull Calculator — Compute exact pull counts, Astrite budgets, and confidence intervals (50%/90%/99%) for both character and weapon banners, with soft pity and 50/50 modelled correctly.
  • Material Planner — Plan ascension and Forte skill leveling: every Shell Credit, XP potion, boss drop, and Forte material needed for your target character build.

The guides

We publish long-form guides covering the topics tools alone can't answer — when to skip a banner, which Sonata set actually fits each character, the real ER breakpoints for each rotation length, and so on. Read the latest:

How we're funded

WuWa Tools is free to use — no paywalls, no premium tiers, and no login required. It currently shows no ads. The best way to support the site is to share it with your guild or community.

About the team

WuWa Tools is an independent project, built and maintained outside of Kuro Games. It is not affiliated with or endorsed by the developer; all game names, characters, assets, and data belong to their respective owners.

The team consists of active Wuthering Waves players who build the tools they wished existed. Every guide is written by players with hundreds of hours of in-game experience, and every calculator is tested against actual in-game results before publishing.

Contact

Bug reports, tool suggestions, character requests, partnership inquiries, or just hello: [email protected]

For takedown requests or copyright concerns, see our Privacy Policy.