Qbasic Compiler Jun 2026

| Environment | Execution Time (ms) | File Size | | :--- | :--- | :--- | | QBASIC Interpreter (DOSBox) | 4850 ms | .BAS = 2 KB | | QB64 Compiler (C++ backend) | 210 ms | .EXE = 2.1 MB | | FreeBASIC (GCC backend) | 95 ms | .EXE = 280 KB | | Theoretical Native QBASIC Compiler | ~80 ms | ~120 KB |

It emits C++ code and then compiles it into a native executable for Windows (64-bit), macOS, or Linux. qbasic compiler

If you are a purist looking for an exact replica of the original IBM PC BASIC (GW-BASIC) experience, this is an excellent Python-based interpreter. | Environment | Execution Time (ms) | File