Test your monitor for dead pixels, color accuracy, and gradient uniformity. Free online online tool — browser-based, no upload.
LCD Écran Test is a free online test d'appareil tool that works right in your browser — whatever you enter is processed locally and never sent to a server. No installation, no signup; works on both phone and desktop, ready to use instantly.
We noticed most online tools upload your files to remote servers. Since privacy is our core principle, we built this tool to process everything locally in your browser.
Oui, entièrement gratuit sans inscription.
Oui, il fonctionne sur les navigateurs mobiles avec support tactile.
Test d'appareil
Yes. LCD Écran Test is a pure front-end tool: whatever you type or paste is processed only in your browser's memory and never sent to a server. It disappears as soon as you refresh or close the page.
🔒 Privacy & Security：All processing happens locally in your browser. Files are never uploaded or stored.
🔒 Privacy: All processing happens locally in your browser. Your files and data never leave your device — no upload, no server, no tracking.