The Thumbnailr Learning Centre
Practical guides to help YouTube creators make better thumbnails, earn more clicks, and grow their channels. Whether you're just starting out or refining your strategy, you'll find actionable tips backed by real design principles.
Thumbnail Design
Everything you need to design YouTube thumbnails that get clicks — sizing, colour, layout, and common mistakes to avoid.
What Size Should a YouTube Thumbnail Be?
YouTube recommends 1280×720px thumbnails — here's a full breakdown of sizing, formats, and device rendering.
How to Make a YouTube Thumbnail That Gets Clicks
Learn the proven design principles behind high-CTR thumbnails, from faces and contrast to text overlays.
Best Colors for YouTube Thumbnails
Discover which colours perform best on YouTube and the psychology behind why they work.
YouTube Thumbnail Mistakes to Avoid
The most common thumbnail mistakes that kill your CTR — and exactly how to fix each one.
How to Write Text on YouTube Thumbnails
Text on thumbnails can boost CTR or destroy it — here's how to write, size, and style it so viewers actually read it.
Why Is My YouTube CTR Low?
Low CTR is almost always a thumbnail problem. Diagnose exactly what's wrong and apply fixes that move the needle.
How Many Thumbnails Should You Make Per Video?
Why making 2–3 thumbnails per video and testing them is one of the highest-ROI things you can do for growth.
YouTube Strategy
Guides to help YouTube creators make smarter decisions — from A/B testing thumbnails to understanding click-through rate.
Opinion
Thumbnailr's take on YouTube trends, thumbnail design strategies, and what's actually working for creators right now.
YouTube Thumbnail Trends in 2025
What's actually working on YouTube right now — and what savvy creators are doing differently with their thumbnails.
How Top YouTube Creators Design Their Thumbnails
The best creators follow surprisingly consistent thumbnail principles. Here's what we've observed — and what you can steal.
Press Release
Official news and announcements from Thumbnailr — product updates, launches, and company milestones.