Kime-Toku
Basic Usage
Enter Participants
In the "Participants" field at the bottom of the screen, enter participant names one per line. It is in the same place on desktop and mobile. Your entries are automatically saved.
Select Lottery Mode
Use the mode selector at the top right of the screen to choose Roulette, Slot, Shuffle Card, Lottery, Ranking, Team, or Coin & Dice. On mobile it is a dropdown.
Start the Lottery
Press the "Start" button to begin the lottery. In Roulette, Slot, Ranking, and Coin & Dice modes, you can press "Stop" to halt.
Try it out
You can stop reading here. Paste your names, press start, and you're done.
Start with your own list →Mode Details
Roulette
A spinning wheel determines the winner based on where the arrow points.
- "Start" to spin, "Stop" to decelerate and halt
- Hover over participants to see name popup
- Hover over the arrow to see the currently indicated participant
Slot
Names spin vertically like a slot machine.
- "Start" to spin, "Stop" to halt
- The name displayed in the center is the winner
Shuffle Card
Select one card from the face-down cards to determine the winner.
- "Shuffle" to shuffle the cards
- "Start" to enable card selection
- Click a card to flip it and reveal the winner
- Use mouse wheel to scroll through cards
Lottery
A lottery mode inspired by traditional drum-style lottery machines.
- "Start" spins the drum and reveals a winner
- Multiple draws are listed on the right side
- "Reset" clears all lottery results
- List can be scrolled with mouse wheel
Ranking
Reveals rankings from last place to first, ending with the winner. It also works for settling presentation order in a meeting or class.
- "Start" to begin ranking announcement
- "Stop" to reveal the next rank
- Ends when first place is announced
- "Reset" to start over
Team Division
Splits participants evenly across 2–10 teams. Step-by-step instructions are in the random team generator guide.
- One team name per line — that's how many teams you get
- Uneven headcounts are balanced automatically (max difference of one)
- Drag a card after the reveal to move someone to another team
Coin & Dice
Coin flip for two participants, dice for three or more. With 3, 5, 7 or 9 participants, each name appears on two opposite faces. All other counts use one face per participant: 11 participants get an 11-faced die.
- "Start" keeps it shaking; "Stop" tosses it, and it settles about 2.5 seconds later. The drumroll plays when enabled
- Read the top side of the coin, the top vertex with four participants, or the highlighted face on other dice
- Drag the board to spin it by hand
- Up to 400 participants, same as the other modes
Learn more: For detailed features and use cases of each mode, see 7 Lottery Modes Explained. For classroom use specifically, see the random name picker for teachers.
Option Settings
The options live in the "Settings" tab of the popup you open with the palette button (π¨) at the bottom left of the screen. It is the tab you land on when the popup opens.
Green Screen
Turn ON to make the background green, suitable for chroma key compositing.
Confetti and Winner Card
Confetti and the winner card are switched separately. In the same popup, pick "None" in the "Finale" tab to stop the confetti, and "None" in the "Card" tab to stop the winner card.
Text Color (Black)
When ON, changes text color to black for roulette and other modes. Useful when using bright backgrounds.
Stream Window (Separate Window)
You keep working in the window in front of you while the drawing itself moves to its own window. Your viewers see the lottery, not you typing names into it.
- Click the window icon just below the wheel, above the "Start" button (desktop only). The "Settings" tab has a "Stream Window" button that does the same
- The drawing and the winner animation stay in sync in real time (while both are open in the same browser)
- Reloading the main screen does not break the sync
- In OBS, pick up that window with Window Capture
Which one to use: Putting the Kime-Toku URL straight into an OBS Browser Source is covered in the OBS transparent roulette guide. Use the stream window when you run draws live from one machine; use a browser source when you set it up once and leave it.
How to Use with OBS
Add Browser Source
In OBS Studio, select "Sources" → "+" → "Browser".
Set URL
Enter https://kime-toku.com/en/ as the URL. Adjust width and height according to your stream (recommended: 1280x720).
Transparency Settings (Optional)
Leave "Custom CSS" empty and check "Enable transparency" to overlay only the lottery portion on your stream screen.
Tip: You can also capture the window opened with "Stream Window" using OBS's "Window Capture". Full walkthrough: OBS transparent roulette guide.
FAQ
Is participant data saved?
Yes, it's automatically saved to your browser's local storage. Opening in the same browser will restore your previous entries.
Can I use it on smartphones?
Yes, it works on smartphones and tablets. The participant field sits at the bottom of the screen and the lottery mode is picked from a dropdown at the top right. OBS integration is PC-only.
Are lottery results fair?
Every mode draws from a cryptographically secure random source (crypto.getRandomValues), so the result cannot be steered. Every participant has an equal chance. Background on how and why we built it: About Kime-Toku.