Drop It Like It's Hot...
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Drop your video or image here
MP4, MOV, JPG, PNG, WEBP...
Processed 100% in your browser
Processed 100% in your browser
AdCheckLab
for marketers
AdCheckLab
for marketers
Check UI overlay danger margins in real time. 100% private in browser tool, your videos and images are never uploaded to any server.
Drag any MP4, MOV, JPG, or PNG. The tool auto-detects aspect ratio (9:16, 16:9, 1:1, 4:5).
Switch between TikTok, Reels, Shorts, and Stories (Feed vs. Ads mode) to see exact danger zones.
Download full-resolution reference frames or transparent PNG masks for your video editor.
A safe zone is the area of your 9:16 vertical video or image that remains fully visible without being covered by native platform UI elements, such as like buttons, comment icons, profile names, captions, and search bars. Keeping text inside the safe zone prevents algorithmic OCR indexing issues and ensures viewer readability.
Never. AdCheckLab processes everything entirely inside your browser using HTML5 Canvas and the File API. Your files never leave your device. The tool works fully offline once loaded, making it safe for confidential and NDA-protected client content.
For standard 1080×1920px TikTok vertical video: approximately 200px from top, 130px from left, 250px from right, and 330 to 480 px from bottom. The safe area center box is approximately 740 × 1240 px.