Your Video Title Will Appear Here

Your Channel Name • 142K views • 2 hours ago

Search Context (Competitor Injection)

Your Title

YOUR VIDEO

Add Competitor Title

Optimize Your CTR Before You Upload

📱 Mobile Cut-Off Check

Over 70% of YouTube traffic is mobile. Our simulator shows exactly where titles truncate so your main hook is always visible.

🎯 The "Squint Test"

Hover over your thumbnail to blur it instantly. Professional designers use this trick to ensure colors stand out at a glance.

🤖 AI Readability Check

Our client-side AI scans your thumbnail text and calculates the contrast ratio to ensure it is legible on small screens.

Frequently Asked Questions

What is the perfect YouTube thumbnail size?

YouTube recommends uploading thumbnails at 1280x720 pixels (16:9 ratio) with a minimum width of 640 pixels. Ensure the file size is under 2MB.

Are my images saved to a server?

No. This tool is 100% client-side. Your images are processed locally within your web browser and are never uploaded to any server. Your content remains completely private.

How does the AI Readability Check work?

We use browser-based Optical Character Recognition (OCR) to detect text on your image. We then analyze the pixels behind the text to calculate the WCAG accessibility contrast ratio.