Online Code Editor

The tool provides a browser-based code editor and runner that enables writing, running, testing, and sharing code across multiple languages without local setup. Target users include students, educators, and developers for rapid prototyping, learning, debugging, and demonstrations.
Core features include language modes (JavaScript, Python, Java, C/C++, Go, Ruby, and more via WebAssembly), a sandboxed execution environment, and a structured I/O model where inputs are code text, language, and optional stdin data, while outputs are stdout, stderr, exit code, and resource metrics. Snippet sharing via embedded state links improves collaboration.
Under the hood, execution uses a browser sandbox (Web Worker or WebAssembly) to isolate code, tracks time and memory usage, and enforces timeouts to prevent infinite loops. Errors include compile-time and runtime messages with line references. External dependencies are loaded only via approved channels. Localization and standards: language codes follow IETF conventions; time in milliseconds and memory in megabytes; assumptions that users operate in common developer regions. Exclusions: not a full IDE, no native package installation, no persistent server-side state beyond optional shareable links.