What Is Safe Zone Preview?

Why This Tool Exists

Every social platform overlays native UI elements — action buttons, captions, subscribe bars, music attribution — directly on top of your content. These elements are invisible during design but very visible to your audience. A single misplaced headline can make an otherwise great post look broken.

Safe Zone Preview was built to eliminate that guesswork. Upload your design, pick your platform, and see exactly which areas are blocked — before you hit publish.

How It Works

Everything runs in your browser. Your images are never uploaded to a server — they are processed locally using the HTML Canvas API. This means your unpublished creative assets stay completely private.

The safe zone overlays are based on real device measurements at standard resolutions: 1080×1920 for vertical content (TikTok, Reels, Shorts, Stories) and 1280×720 for YouTube thumbnails.

Supported Platforms

• TikTok — 9:16 · 1080×1920 — right-side action bar, bottom caption area
• Instagram Reels — 9:16 · 1080×1920 — reaction icons, profile info overlay
• Instagram Stories — 9:16 · 1080×1920 — matches Reels safe zone dimensions
• YouTube Shorts — 9:16 · 1080×1920 — like/share sidebar, bottom channel bar
• YouTube Thumbnails — 16:9 · 1280×720 — auto-generated timestamp pill

Who It Is For

Safe Zone Preview is built for anyone who creates visual content for social media — solo creators, freelance designers, marketing agencies, and small business owners who manage their own accounts. If you design thumbnails, Reels, TikToks, or Shorts, this tool is for you.

Built With

Next.js, Tailwind CSS, and the HTML Canvas API. No third-party analytics, no cookies, no tracking. Just a fast, private tool that does one thing well.