Rollare Bracket Maker by 雪剑20

Free tournament bracket maker — create single elimination & round robin brackets in seconds. Third-place match, PNG export, animated previews of 6 formats. EN/中文/日本語/한국어. No sign-up, data stays local.

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About this extension

Rollare Bracket Maker — create a tournament bracket in seconds, right in your browser.

Formats
• Single elimination — byes handled automatically, optional third-place match
• Round robin — full schedule with a live standings table

Highlights
• Name your tournament and track every pick on a clean, readable bracket
• Export the bracket as a PNG image or copy it to the clipboard
• Animated previews of six tournament formats (single elimination, double elimination, round robin, group stage + knockout, Swiss, Swiss + knockout)
• Four languages: English, 简体中文, 日本語, 한국어
• No account, no sign-up — your data stays on your device

When you're ready to run the real thing — online registration, match scheduling, referee scoring, live public pages and poster exports — one click takes you to rollare.com for free.

Developer comments

No credentials or accounts are needed — the extension has no login and collects no data.

How to test:
1. Click the Rollare Bracket Maker toolbar icon — the generator opens in a new tab.
2. Left panel: pick a format (single elimination / round robin), set team count (2–16), enter names (or Shuffle), then "Generate bracket".
3. Click a team to record a winner; winners advance automatically. With 4+ teams a third-place match appears below the final.
4. Header buttons export the bracket as PNG or copy it to the clipboard.
5. "Preview all 6 formats" plays animated format demos; each card links to rollare.com.

Quick demo states (no manual input): open the extension page and append ?demo=se-picked (winners pre-filled + third-place match) or ?demo=rr (round robin with standings) to the app.html URL.

Build/source: bundled with WXT (open-source build tool) from unobfuscated TypeScript sources; reproducible with "bun install && bun run build:firefox". Source archive can be provided on request.

Note on validator warnings: any remaining innerHTML references come from the bundled react-dom library internals; the extension never injects untrusted content into innerHTML. The UI follows the browser language (English / 简体中文 / 日本語 / 한국어).

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