# LG webOS TV Use LG's official Developer Mode route to test a custom web app on a compatible webOS TV. Start with a TV you already own. Model: Platform guide · exact TV and firmware must be checked Maker: LG Category: displays Display type: tvs Collections: None Evidence: Official docs (not independent hands-on testing) Sources reviewed: 2026-11-04 Added to directory: 2026-11-04 Development route: HTML / CSS / webOS CLI Setup: Developer setup ## Overview LG provides an official Developer Mode app for installing, debugging, and testing webOS TV apps from a computer. Its getting-started guide uses familiar HTML, CSS, and JavaScript. A coding agent can help create a big-screen dashboard or remote-friendly app. This route does not require a rooting claim and is not equivalent to replacing the TV's operating system. Best for: Trying a big-screen web app on a compatible television you already own. Not for: A permanent kiosk or a promise that every LG TV supports the same setup. Where code runs: Your HTML, CSS, and JavaScript app runs on the compatible TV; the development tools run on your computer. ## Editorial popularity estimate 88/100. This is a subjective editorial estimate, NOT measured sales, traffic, quality, testing or customer reviews. A widely recognizable screen category with official app-development tutorials. This score concerns the ecosystem, not a particular TV or hack. Inputs on a 1–5 scale: ecosystem 5 (50%), tutorial visibility 3 (30%), retail familiarity 5 (20%). Assessed 2026-11-04. ## Project ideas - A big-screen family dashboard - A remote-controlled personal web app - A wall-sized project or event information screen ## What you need - A compatible webOS TV with the Developer Mode app available - A free LG Developer account and a computer with webOS CLI or Studio - TV and computer on the same network ## Compatibility and cautions - Developer Mode is time-limited. LG says apps installed through it are removed when Developer Mode is disabled, including after session expiry and reboot. - This is a development/testing route, not a promise of permanent kiosk behavior, replacement launcher, or unrestricted system access. - Match browser capabilities to your TV version. Avoid leaving a static dashboard on an OLED panel for prolonged periods; follow the manufacturer's panel-care advice. ## Buy [Search Amazon](https://www.amazon.com/s?k=LG+webOS+TV) — Search destination only; matching listing NOT verified Amazon search only: an exact matching listing has not been confirmed. Prefer the official seller if results do not match. [Check your TV before buying](https://webostv.developer.lge.com/develop/getting-started/developer-mode-app) This is a platform-specific project route, not a recommendation to buy an unverified TV model. Confirm Developer Mode availability for the exact TV, region, and firmware first. Affiliate link: no ## Guides and sources - [Install and test apps with Developer Mode](https://webostv.developer.lge.com/develop/getting-started/developer-mode-app) — LG; Tutorial - [Build your first webOS TV web app](https://webostv.developer.lge.com/develop/getting-started/build-your-first-web-app) — LG; Tutorial ## Planning notes (not a replacement for the original technical instructions) 1. **Check the TV you already have**: Read LG's prerequisites and confirm the Developer Mode app is available. Do not buy based solely on the webOS brand name. 2. **Build a small web app**: Follow LG's first-web-app guide. Design for the actual screen and remote input rather than a laptop pointer. 3. **Test through Developer Mode**: Connect the computer using LG's official guide, install the test app, and record the session-expiry and recovery requirements. ## Coding-agent project brief Help me build a simple webOS TV dashboard using LG's official Developer Mode workflow, not rooting. First ask for my exact TV model, webOS and firmware version, and whether Developer Mode is available. Use compatible HTML/CSS/JavaScript, support remote navigation, explain session expiry and app removal, and do not promise permanent kiosk operation. ## Common questions ### Do I need to root my LG TV to make a dashboard? The route covered here uses LG’s official Developer Mode, not rooting. It allows app testing under LG’s restrictions rather than unrestricted system access. ### Will the dashboard stay installed permanently? Do not assume it will. LG says Developer Mode apps are removed when the mode is disabled, including after session expiry and reboot. Plan for renewal and recovery before relying on it. ### Where can I buy LG webOS TV? Use the official buying or compatibility link below. The Amazon button opens a search, not a confirmed product listing. This is a platform-specific project route, not a recommendation to buy an unverified TV model. Confirm Developer Mode availability for the exact TV, region, and firmware first.