- HotBits
 - Get genuine random numbers, generated by timing radioactive decay - the universe's most uncertain process. Download HotBits for your personal computer or try the Java web interface. - Ken White's Coin Flipping Page
- Kennesaw University: Random Number Generator
- Press "Refresh" for a random number between 0 and 30. From the University of Kennesaw.
- LavaRND
- Downloadable pseudo-random number generator. The LavaRND generator is seeded with a seven-way cryptographic hash of a digitization of a chaotic system, or, in other words, a digital picture of six Lava Lite Lamps.
- Random Number Generators
- Design and test your own random number generator with this applet from the University of Utah. Includes a tutorial about how random number generators work, with examples.
- Random Numbers
- Online random number generator from Cornell University. Choose the number of random numbers in your sequence and a seed number for your dose of randomness. Also includes array and distribution options.
- Random.org
- True random number service with web-based and CORBA interfaces. Random.org generates random numbers using atmospheric noise and statistical tests, with the results available in real-time. From the University of Dublin.
- RandomNumbers.info
- Download random numbers generated from the principles quantum physics. Users can specify the length of the random number sequence and their upper boundary. From Id Quantique and the University of Geneva.
- Research Randomizer
- Instant, customisable, random sampling and assignment. Throw your random number tables away!
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