Platform Safe Zone Tester
Verify your vertical video UI overlaps before publishing.
Select Video to Begin
Drag & drop your file here, or click to browse. Processing is performed 100% locally on your computer with complete privacy.
Launch Platform Safe Zone TesterHow It Works
Upload Media
Drag and drop your vertical or landscape video.
Select Platform
Toggle overlays for TikTok, Instagram Reels, and YouTube Shorts.
Check UI Overlap
Ensure key text, faces, and CTA elements stay clear of UI icons and captions.
Export or Adjust
Fine-tune your layout with confidence before publishing.
Key Features & Benefits
Real-Time Device Emulation
Accurate overlay boundaries for major social platforms.
Multi-Ratio Testing
Test 9:16, 4:5, 1:1, and 16:9 aspect ratios.
Instant Visual Feedback
See exactly where profile icons, comment bars, and buttons will appear.
Free & In-Browser
No signups or software downloads required.
Frequently Asked Questions
What platforms are supported by the Safe Zone Tester?
We currently support accurate UI overlays for TikTok, Instagram Reels, and YouTube Shorts.
Are the UI overlays up to date?
Yes, we regularly update our overlay masks to match the latest app interface changes on iOS and Android.
Can I export the video with the overlay?
No, the Safe Zone Tester is purely a preview tool to help you adjust your original edits.
Does it work on mobile browsers?
Yes, you can test your videos directly from your phone browser, though a desktop is recommended for detailed viewing.
Is my video uploaded to a server?
No, the preview is generated entirely in your browser using local files for instant feedback and privacy.