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🔒 100% Client-Side📱 9:16 Vertical Safe Zones
✨CREATOR VISUAL AUDIT ENGINE · 100% IN-BROWSER

Free YouTube Shorts Safe Zone Checker

See exactly what YouTube's interface overlays—like like counters, channel badges, captions, and title bars—cover before you publish. Zero uploads, 100% rendered locally on your device.

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Note: YouTube doesn't publish exact safe zone measurements. These overlays are a conservative estimate based on current client interface builds. When in doubt, leave more margin, not less.

Drop your Short frame here or browse files

JPG, PNG, or WebP · High Resolution Recommended (1080 × 1920)

🔒 100% Client-Side📱 9:16 Vertical Safe Zones⚡ Zero Cloud Upload
●CREATOR EDUCATION · DEEP DIVE

Why Safe Zones Matter for YouTube Shorts

A safe zone is the part of a video frame that a platform's own interface covers up. Anything placed under those elements is hidden from the viewer for as long as the video plays.

01Empirical Metric

Why This is an Estimate, Not a Guarantee

YouTube does not publish official pixel measurements for where its interface sits over a Short. Estimates range from 300 to 672 pixels for bottom margins because YouTube alters density based on device resolution and active app builds.

📏Variability: ±14% across OEM mobile form factors
02Persistent Chrome

The Interface Doesn't Fade Out

Unlike standard YouTube video player controls that auto-hide after 3 seconds, a Short's interface sits permanently on top of the video for the entire 60 seconds of playback.

👁️100% overlay duty cycle throughout playback
03Generous Principle

Why Our Zones Are Drawn Generously

We calibrate boundaries toward maximum safety margin so your subtitles and graphics stay clear across every mobile device and screen resolution.

🛡️Buffers calibrated for high safety margin
04Frame vs Thumbnail

Frame Check vs. Thumbnail Check

This tool audits live playback safe zones—where interactive action bars, sound tickers, and captions collide—rather than static grid feed thumbnails.

✂️Playback UI audit (not thumbnail preview crop)

Frequently Asked Questions

Everything you need to know about YouTube Shorts overlay boundaries, privacy, and client execution.

What is a safe zone on a YouTube Short?↓
It's the part of the frame that YouTube's own interface—such as the search icon, channel handle, like and comment buttons, subscribe button, and music title—covers up while the video plays. Anything important sitting under those elements, like subtitles, facial expressions, or brand logos, is partly or fully hidden from the viewer for the entire watch time.
Why does this matter more for Shorts than for regular video?↓
Because the interface sits on top of a Short for the whole time it plays, not just during a thumbnail or a scrub bar. A regular YouTube video's controls fade away and only appear when you interact with the player. A Short's interface stays visible the entire time, so anything placed under it stays covered continuously.
Does this check YouTube's thumbnail, or something else?↓
Something else. This checks the safe zones during live playback—the areas covered by the interface while a Short is actively running. A thumbnail is a separate, single static image YouTube presents before tap-to-play, subject to unique grid crops. This tool is designed explicitly for in-stream playback fidelity.
Why doesn't YouTube just publish the exact measurements?↓
YouTube has not published official developer measurements. What we know comes from reverse-engineering live viewports across dozens of devices. The layout fluctuates based on device aspect ratio (19.5:9 vs 20:9), whether system gesture navigation bars are shown, and active creator experiments.
If nobody knows the exact numbers, why trust this tool's overlay?↓
Don't trust it as mathematically absolute; trust it as generous. Our boundaries reflect the upper bound of confirmed coverage across diverse real-world mobile screens. Following them guarantees your subtitles, focal subjects, and graphics will not be occluded.
Is my image uploaded anywhere?↓
No. Everything happens entirely inside your browser using the HTML5 Canvas API. The image never leaves your computer or phone, no server is pinged, and zero telemetry is logged.
What if my image isn't exactly 9:16?↓
You can still inspect it. The diagnostic system will flag a warning indicating an aspect ratio mismatch and map the YouTube safe zone overlay proportionally over your canvas.
Can I use this for TikTok or Instagram Reels?↓
Not with this version. TikTok and Reels place their interaction bars, description lines, sound titles, and follow pills in fundamentally different spatial coordinates.