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  • 特賞

Giveaway Wheel — A Fair Winner Picker for Streamers, Creators, and Events

Run a giveaway your audience can actually trust. Drop in every entry, hit spin, and let cryptographic randomness pull the winner live. Works offline, no signup, nothing to install.

Twitch drops, Instagram comment contests, classroom raffles — one wheel, one provably fair winner

40,000+ユーザー
1.2M+スピン
100%無料

wheel.expertを選ぶ理由

🎯

Pick a Winner Nobody Can Question

Paste every entry, spin, and the result is settled by the algorithm in front of everyone watching. No 'my cousin won again,' no quiet thumb on the scale — just one name the whole chat saw land.

🎥

Built to Be Screen-Recorded

Run the giveaway wheel on stream or hit record before you spin. The slow wind-down and the final stop are all on camera, so your proof of fairness is the clip itself — share it and the argument's over.

👥

Draw Several Winners Without Repeats

Giving away five codes, not one? Spin, remove the winner, spin again. Each name drops out of the next round automatically, so you get five distinct people instead of the same lucky handle twice.

⚖️

Genuinely Equal Odds for Every Entry

The draw pulls from the Web Crypto API — crypto.getRandomValues(), the same randomness browsers use to generate security keys. A handle entered first has identical odds to the last one pasted in. There's no hidden weighting unless you add it on purpose.

📋

Paste a Whole Comment List at Once

Export the entrants from your giveaway, paste the block in, and the wheel splits it into entries for you. No retyping two hundred usernames by hand thirty seconds before going live.

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Free, No Account, Nothing Stored

You're not signing up, you're not buying credits, and the entries aren't kept after you close the tab. Open it, run the draw, done.

How to Run a Giveaway With the Wheel

1

Load Every Entry

Paste your list of usernames, names, or ticket numbers. Pull it straight from comments, a sign-up sheet, or a Twitch chat export — one entrant per line and the wheel does the rest.

2

Start Recording

Going live? You're already covered. Drawing off-camera? Hit screen-record first. A thirty-second clip of the spin is the cleanest proof a giveaway was fair, so capture it before the wheel turns.

3

Spin in Front of Everyone

Tap the center and let it run. The wheel slows, settles, and stops on one entry — decided the instant you spun, not by where it looks like it landed.

4

Announce, or Draw the Next Winner

Got your winner? Call it out. Need a second or third? Remove the name and spin again — past picks sit in the history panel so you can read the full winners list back at the end.

How Creators and Organizers Actually Use It

📺

Live Stream Giveaways

Twitch and YouTube creators run the wheel on screen so the draw happens where the audience can see it. The spin becomes part of the show, and 'it was rigged' never gets traction because everyone watched it stop.

例: A Twitch streamer pastes everyone who typed !enter, spins on cam, and hands out the game key live
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Instagram and TikTok Comment Contests

Copy the commenters into the wheel, record the spin on your phone, and post the clip as your winner announcement. Followers see the actual draw instead of a name you could have just picked.

例: A creator screen-records the spin and drops the video in their Stories the moment a winner lands
🎟️

Event and Conference Raffles

Project the wheel on the big screen, load the ticket numbers, and draw the door prizes in front of the room. No paper hat, no reaching around for the 'right' stub.

例: An event host runs the wheel on the projector and pulls three raffle numbers between sessions
🏫

Classroom and Club Prize Draws

Reward a reading challenge or a fundraiser with a transparent draw. Every student watches the same spin, so the kid who didn't win still saw it was square — which heads off a lot of 'that's not fair.'

例: A teacher loads the names of everyone who finished the challenge and spins for the bookstore voucher
🛒

Small-Business and Brand Promos

Running a launch-week giveaway across your channels? Pool the entries from every platform into one wheel and draw once, on video. One clip covers the whole promo and doubles as your fairness receipt.

例: A shop owner merges email and comment entries, spins once, and posts the recording as proof

Why This Beats a Spreadsheet Trick — or 'Trust Me, It Was Random'

Provable Fairness, Not Your Word For It

他のツールA draw done off-screen that the audience just has to believe
wheel.expertA spin you record live — crypto.getRandomValues(), every entry equal

Multiple Winners the Easy Way

他のツールRe-running a formula and hoping the same name doesn't repeat
wheel.expertRemove each winner and spin again — no duplicates, full list saved

No Account, No Catch

他のツールSign up and pay for credits to draw more than one winner
wheel.expertUnlimited draws on the first click — free, and nothing kept after

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関連ツール

名前ピッカー ホイール

教室、チーム、プレゼント用のランダムな名前選択ツール。暗号的に安全なランダム性による公平な選択。

試してみる →

ナンバーホイール

1 ～ 100 またはカスタム範囲の乱数ジェネレーター ホイール

試してみる →

カジノホイール

楽しいカジノスタイルの賞金ホイール

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ルーレットを回す準備はできましたか？

毎日、公平でランダムな選択をする何千人もの仲間に加わろう。

真にランダムな選択 - アルゴリズムの仕組み

Math.random() を使用する多くのホイール スピナーとは異なり、wheel.expert は暗号的に安全な乱数を生成するためにWeb Crypto API (crypto.getRandomValues()) を使用します。これは、パスワード ジェネレーターなどのセキュリティ クリティカルなアプリケーションで使用されるものと同じ API です。

🔐

ウェブ暗号化 API (CSPRNG)

すべての最新ブラウザに組み込まれている暗号的に安全な擬似乱数ジェネレーター (CSPRNG)である crypto.getRandomValues() を使用します。

⚖️

不偏選択アルゴリズム

すべてのエントリの重みが等しい場合は、 ランダム選択でよくある問題であるモジュロ バイアスを排除するために拒否サンプリング を使用します。これにより、 各エントリが選択される確率が数学的に等しいことが保証されます。重み付けされたエントリでは、確率は割り当てられた重みに比例します。

🛡️

クライアント側の透明性

すべてのランダムな選択はスピンの瞬間にブラウザ内で行われます。コードはオープンであり、ブラウザーの DevTools 経由で検査できます。重要な景品の場合は、視聴者に対する公平性の証拠としてスピンを画面録画することをお勧めします。

🔍 自分で確認してください: DevTools (F12) を開き、コンソールで乱数の生成を確認します。私たちは window.crypto.getRandomValues() を使用します。これは銀行やセキュリティ アプリケーションで使用されているのと同じ暗号化 API です。

一般的な使用例

  • ✓ストリームのプレゼント
  • ✓ソーシャルメディアコンテスト
  • ✓イベント賞品
  • ✓マーケティングキャンペーン
  • ✓顧客特典

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