Free Safe Zone Checker
Keep your story in the clear.
Check TikTok, Instagram Reels and YouTube Shorts safe zones. Add a video or image, scrub to a frame and see where captions and controls cover it.
- 01 Choose a file. Bring the video you want to share.
- 02 Check the zones. Preview your result.
- 03 Download and share. Your original stays intact.
Check your safe zones
Now turn it into a clip.
Sentarys finds the story, cuts the moment and adds captions. Or bring all your phone files and get a finished vlog.
Questions, answered.
Does the file leave my device?
No. The preview and PNG export work in your browser. Sign in to your free Sentarys account to use the tool.
Can I check a video frame?
Yes. Move the timeline to any frame, pick the platform, and toggle the top bar, action rail and caption areas. Download that frame with the zones as a PNG.
Where do the zones come from?
The presets use conservative 9:16 planning areas from platform placement guidance and AdKit’s September 2026 creator references. Interfaces vary by device and caption length; check your final post in the app.
What files can I use?
Use a browser-playable video, JPG, PNG or WebP up to 256 MB. Images can have up to 40 megapixels. Wide frames are fitted inside the vertical preview.