QB64 Online Editor

QB64 Online Editor provides a browser-based environment to write, run, and manage QB64 code without installing tools locally. It targets students, hobbyists, and developers who need quick feedback and easy sharing of runnable QB64 examples. The editor supports editing with syntax highlighting, in-browser compilation, and a sandboxed runtime that preserves system safety while allowing experimentation. Projects can include multiple files, simple imports/exports, and lightweight version control hooks to organize small QB64 programs. In concept, the tool treats QB64 code as text input, passes it to an in-browser compiler/interpreter, and streams stdout and stderr back to the user, enabling rapid iteration cycles. Error reporting emphasizes line/column references to aid debugging, and execution is sandboxed to prevent access to host resources. The unique value lies in zero-install convenience, privacy, and deterministic results within the browser, making it suitable for classroom demos, coding drills, and quick prototyping. Core features include syntax highlighting, in-browser compilation, sandboxed execution, file import/export, and basic project organization. Optional enhancements such as multiple tabs, templates, and code snippets vouch for power users. This tool focuses on stability, privacy, and learning outcomes, rather than full-scale IDE capabilities, delivering a focused QB64 experiment platform.