Build Lookup by UID

A UID (User ID) is the unique number identifying a Honkai: Star Rail account, completely separate from the display nickname — two players can share a name but never a UID. The game server uses it to know exactly which account you are for matchmaking, profile viewing, or lookups through outside tools like this one.

A smaller UID usually means an older account, but the number itself says nothing about skill or progress — it's simply the key this tool uses to find that account's public Showcase data.

Your UID sits right on the in-game profile screen: open Honkai: Star Rail, tap your avatar or name in the top corner to open your profile, and the UID number appears right under your nickname. To view a friend's or a community member's build, all you need is that number — nothing else is required to search on this page.

The input only accepts a 9-10 digit number; if the result comes back not found, the most likely cause is a mistyped digit, or that account has never enabled its Showcase — double-check the UID first before assuming anything else.

Private by default: a fresh Honkai: Star Rail account doesn't expose any build data automatically. For anyone else (or this page) to see it, the account owner has to open their profile, go to the Character Showcase section, and add the characters they want to display — the exact mechanism every UID tool on the market depends on.

Since this is a game-side mechanic rather than a limitation of this page, if a UID comes back empty or errors out, the fix lives on that account: open the game, add characters to the Character Showcase, then search again.

Once a lookup succeeds, the page rebuilds exactly what's public in the Showcase: the main profile (nickname, Trailblaze Level, signature) plus a few quick stats — achievement count, Simulated Universe level, total characters owned.

• Each character gets its own card: level, element, Path, how many Eidolon ranks are unlocked, all 4 skill levels (Basic/Skill/Ultimate/Talent).
• Equipped Light Cone: name, level, superimposition rank.
• All 6 relics: main stat plus every substat with its roll count, with 2-piece/4-piece sets deduped down to their highest tier.
• Total character stats: HP/ATK/DEF/SPD, Crit Rate, Crit DMG, Break Effect, Effect Hit Rate, Effect RES, Energy Regeneration.

The in-game Character Showcase itself caps how many characters it exposes at once — the page shows exactly what the Showcase returns, nothing added or hidden.

Crit Value adds up the Crit Rate and Crit DMG substat lines across all 6 relics, using the community-standard formula: CV = (total Crit Rate% × 2) + total Crit DMG%. Crit Rate is doubled because one percentage point of it usually produces roughly double the damage impact of one percentage point of Crit DMG.

CV isn't a letter grade — this page has no S/A/B/C rank for it. It's a raw number meant for RELATIVE comparison between relic sets or between reroll attempts: a higher CV means a bigger share of that build's substats leans into crit. Whether a build is "good enough" still depends on the character's Path and role.

Every character in a UID lookup comes with real numbers pulled straight from their equipped relics — ATK, Crit Rate, Crit DMG, elemental DMG, Break Effect — plus every substat line across all 6 slots. Tap the fill button and those numbers move straight into this site's Relic Scorer or Damage Calculator — no retyping stats by hand, and no copy-paste mistakes.

This is what sets it apart from most other UID lookup tools: the numbers aren't just for viewing, they flow directly into the next calculation step on the same site.

Each UID is cached for about 5 minutes after the first lookup — searching it again within that window returns an instant result instead of hitting the game servers again. Just changed a build and want to see it right away? Wait past the 5-minute mark, then search again to pull the latest numbers.

On privacy: the page only reads the Character Showcase data the account owner chose to make public, exactly what anyone sees viewing your profile in-game. No password, no login, and no other account data is accessed or stored beyond that public Showcase.

The 9-10 digits of a UID aren't random — based on community statistics (not an official HoYoverse publication), the first digit indicates the server region, the next couple of digits roughly track when the account was created, and the remaining digits are a sequential ID within that region:

The digits right after the first one tend to climb over time, so they can hint at which account is relatively older or newer — but this is community inference, not official data, and shouldn't be treated as a precise account-creation date.

A UID lookup shows a raw Crit Value, never an auto-assigned S/A/B/C rank.

Reason: the community has repeatedly flagged automated relic-scoring formulas (the relic-scorer style) for weighting stats unevenly — some versions overweight ATK% relative to Crit Rate/DMG, so two very different-quality relic sets end up with near-identical scores;

even the creators of such formulas have acknowledged theirs is an "early version, still room to improve." For a deeper, role-aware read on a build, cross-check with this site's Relic Scorer and Damage Calculator.

Character/relic/light-cone data shown after you enter a UID comes DIRECTLY from the game server via HoYoverse's public showcase API (fetched through the mihomo relay service, not guessed by us). So the build shown is exactly what's on that account at the moment you look it up — not an estimate or community average.