Open Quantum

Copyright 2026 Open Quantum / Quantum Rings

Open Quantum · Quantum Rings

Features

• Syntax highlighting and error parsing for OpenQASM 2 and OpenQASM 3 (.qasm, .qasm2, .qasm3, .openqasm)
• Optionally run on real Quantum Computers and Simulators with Open Quantum

Example

OPENQASM 3.0;
include "stdgates.inc";
qubit[2] q;
bit[2] c;
h q[0];
cx q[0], q[1];
c[0] = measure q[0];
c[1] = measure q[1];

Validate a circuit

1. In the Extensions view, install Open Quantum.
2. Create a key at openquantum.com/settings/keys. In the Open Quantum pane, open SDK keys and choose Set SDK key.
3. Backends lists backends for the selected organization, with status and queue. Details opens the coupling map and gates. Use opens Create job with that backend.
4. Open a .qasm file. Run Without Debugging opens Create job. Pick a backend, a category, and a subcategory. Set the configuration, then Validate. That checks the circuit and configuration and returns a quote.
5. Pick a plan and a queue, then Submit. The pane opens Jobs and selects the new job. The job window matches the website: status, backend, provider, tier, credits, and a results explorer with a counts chart or table, filters, bit order, and JSON or notebook downloads. Load more… fetches the next page. The list refreshes every 30 seconds.
6. Add credits opens openquantum.com/buy-credits. Settings switches organization. The header shows Spark and Full credits.