Free Open Source Quantum Services !exclusive! Jun 2026

| Service | Primary Hardware Type | Free Access Model | Ecosystem Openness | | :--- | :--- | :--- | :--- | | | Superconducting | Open Plan (Unlimited queue access) | Highly Open (Qiskit OSS) | | Amazon Braket | Aggregator (IonQ, Rigetti) | Monthly Free Credits | Open SDK support | | Azure Quantum | Aggregator (IonQ, Quantinuum)| Monthly Free Credits | Proprietary (Q#) + OSS support | | Google (Cirq) | Superconducting | Limited Research Access | Highly Open (Cirq OSS) |

These are software development kits (SDKs) that allow users to write quantum programs. While they can interface with hardware, they are primarily "services" in the sense that they provide the foundational codebase for quantum development. free open source quantum services

Specifically designed for Noisy Intermediate-Scale Quantum (NISQ) algorithms, Cirq focuses on writing and optimizing circuits for near-term processors like Google's Sycamore. | Service | Primary Hardware Type | Free