What is a poker randomizer?
A randomizer generates random numbers. In poker, it can help you follow a strategy that alternates between actions at set frequencies. This is called a mixed strategy: you do not always choose the same action in the same situation.
To learn the betting rounds and table controls, you can also play poker online for free. The game uses play chips, and you do not need a randomizer to play.
The abbreviation RNG stands for Random Number Generator. Each click here draws a whole number from 1 to 100, including both endpoints.
How is it used to study poker?
Suppose your study suggests betting 30% of the time and checking the other 70% in a specific spot. The randomizer helps you follow that split without guessing when to vary your play.
It does not tell you which actions are good or calculate their frequencies. Those decisions must come from a strategy you have studied, taking position, cards, stacks and earlier actions into account. Randomizing without that context does not make a strategy balanced.
How to turn a frequency into numbers
- Set the frequency before drawing. In this example, bet 30% of the time and check 70%.
- Assign the ranges: bet on 1 through 30 and check on 31 through 100.
- Click “Generate number” once. If you draw 18, use the first range. If you draw 74, use the second.
- Follow the draw. Drawing again until you get the result you want changes the planned frequency.
Example split: 30% / 70%
1–30: bet · 31–100: check.
These percentages only illustrate the math. They are not a recommendation for a real hand.
For three actions, a 20%, 30% and 50% split can use 1–20, 21–50 and 51–100. The ranges must cover all 100 numbers without overlaps or gaps. A frequency of 0% gets no numbers. A frequency of 100% gets them all.
Repeated numbers and long-run frequencies
Each draw is independent. A number can repeat, even on consecutive clicks. Drawing 100 does not make 1 more likely next time. Each number still has a 1% chance.
A range of 30 numbers has a 30% chance on each draw. It will not necessarily come up exactly three times in ten. Small samples vary, and the randomizer does not compensate for previous results.
Because the tool uses whole numbers from 1 to 100, the ranges represent frequencies in steps of one percentage point. A frequency such as 12.5% cannot be represented exactly.
What the number doesn’t tell you
- It does not give you your chance of winning, your equity or your pot odds.
- It does not tell you whether to bet, call, raise or fold.
- It does not know the cards, the opponent or the context of the hand.
- It does not replace study or guarantee a profit or the right decision.
To understand hand probabilities and the price of a call, use the poker odds calculator. To review the terms, see actions and betting and the glossary.
Frequently asked questions
Do I need a randomizer to learn poker?
No. Start with the rules, positions, hand rankings and order of play. The tool becomes useful when you start studying situations with mixed frequencies.
Is the number drawn automatically?
No. The tool draws a number only when you activate the button with a click, tap or keypress. The result stays on screen until the next draw.
How is the number generated?
The browser provides random numbers through the Web Crypto API. The tool rejects excess values before converting to the 1–100 range so the conversion does not favor certain numbers. The result is not sent to a server or saved in a history.
Can I use it during an online game?
Check the poker room’s and event’s current rules on external tools before using one during play. Away from the tables, you can use it to practice applying frequencies you have already set.
Further reading: sources on randomization in poker study.