Quick answers to common questions about TechTube video discovery, Code Lab sandbox execution, developer calculators, offline privacy, and local storage.
TechTube is an independent, distraction-free educational platform and developer productivity workspace. It strips away noisy comments, algorithmic sidebars, and autoplay traps to provide high-focus video learning, an integrated multi-language Code Lab sandbox, 10+ offline developer utilities, and private local storage.
The Web Sandbox executes HTML5, CSS3, and JavaScript 100% locally inside an isolated client iframe with instant live rendering. The Polyglot Engine supports compiled and backend languages (Python, TypeScript, C++, Rust, Go, Java, PHP) by communicating with the open-source Piston container execution API.
No. All 10+ developer tools (JSON Formatter, Base64 Converter, RegEx Tester, Unix Timestamp, Diff Checker, QR Generator, Color Converters) run 100% locally in your browser JavaScript environment. Your secrets and payloads never leave your computer.
All user data is stored locally in your browser using IndexedDB (database: "techtube_db") and LocalStorage. We do not maintain remote cloud user accounts or sync your records to external databases.
Explore the comprehensive TechTube Help Center or check our step-by-step guides.