Generate true quantum random numbers instantly from our entropy pool
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Guest limit: 20/20 requests per hour
Guest access uses cryptographically secure pseudo-random numbers
Sign In Create Free AccountConfigure options and click Generate to create quantum random numbers
Most online random number generators use mathematical algorithms called PRNGs - they look random but are fundamentally deterministic. TrueEntropy generates numbers from real quantum hardware, where randomness is a law of physics, not a trick of maths.
An 8-qubit Hadamard circuit on IBM Quantum hardware puts qubits into true superposition - simultaneously 0 and 1.
Measuring each qubit forces it to collapse to 0 or 1. This outcome is genuinely unpredictable - a fundamental property of quantum mechanics.
Every entropy batch passes 7 NIST SP800-22 statistical tests before entering our pool, ensuring your numbers meet cryptographic standards.
From prize draws to cryptographic key generation, true randomness matters.
Generate provably fair winner selections with a verifiable quantum certificate for regulatory compliance.
Seed key generation, nonces, and salts with quantum entropy for stronger cryptographic security.
Monte Carlo simulations and clinical trial randomisation require high-quality entropy sources to avoid bias.
Power loot tables, procedural generation, and NFT trait randomisation with quantum-origin entropy players can trust.
Integrate quantum randomness directly into your application. Free tier includes 1,000 requests/month. Read the API docs or check out our Python, JavaScript, and PHP SDKs.
Everything you need to know about generating random numbers with TrueEntropy.
Select Integers above, set Minimum to 1 and Maximum to 10, then click Generate. TrueEntropy uses IBM Quantum hardware to produce a genuinely random result - not a pseudo-random algorithm.
Yes. Unlike most online random number generators that use deterministic algorithms (PRNGs), TrueEntropy sources entropy from IBM Quantum hardware using Hadamard gate circuits. The quantum measurement outcome is fundamentally unpredictable - a law of physics, not a mathematical approximation. Results are independently verified with NIST SP800-22 statistical tests.
Pseudo-random number generators (PRNGs) use mathematical algorithms seeded with an initial value. They appear random but are deterministic - given the same seed, they produce the same sequence every time. Truly random numbers come from physical processes that are fundamentally unpredictable. TrueEntropy uses quantum superposition collapse on real IBM quantum computers, making it physically impossible to predict or reproduce the output.
Yes - set Minimum to 1 and Maximum to 100 and click Generate. You can generate up to 10 numbers at once on the free tier, or up to 50 per request with a registered account. The range can be any integers, including negative numbers (e.g. -50 to 50).
Yes. Because TrueEntropy uses genuine quantum randomness, results are provably unbiased. Each generation can be issued a certificate of authenticity linking to the quantum entropy provenance - useful for regulatory compliance in gambling or prize promotions. See our Gambling & Gaming use case.
TrueEntropy supports four output types:
The full API also supports bitstrings, shuffling, and batch operations.
Yes. TrueEntropy offers a free API tier with 1,000 requests/month - no credit card required. Paid plans start at £49/month for 500,000 requests/month. The API supports integers, floats, bytes, UUIDs, bitstrings, and batch operations with SDKs for Python, JavaScript, and PHP.
RANDOM.ORG uses atmospheric noise as its entropy source. TrueEntropy uses IBM Quantum hardware - actual quantum mechanical processes (Hadamard gate superposition and wavefunction collapse) - providing entropy that is provably rooted in quantum physics. TrueEntropy also offers a developer REST API, NIST test certificates, and SDK libraries unavailable from RANDOM.ORG.
The online generator above is completely free to use without registration. Guest users can generate up to 10 integers, 10 floats, 128 bytes, or 5 UUIDs per request, with up to 20 requests per hour. Creating a free account raises limits and unlocks the API.