Thumbnail Maker
Drop in a background image, add a headline, tweak an overlay and export a sharp 16:9 thumbnail — ready for YouTube, blogs and social posts.
Files never leave your device — 100% browser-based.
Why use this tool?
Built for speed, privacy and simplicity. No accounts, no installs, no watermarks.
Creating a 1280×720 YouTube thumbnail.
Designing a blog post hero image.
Making a quick promo graphic for Twitter or LinkedIn.
Producing a featured image for a podcast episode.
How it works
Three simple steps. Everything happens in your browser.
Upload a background image (auto-cropped to 16:9).
Type your headline. Choose colour and contrast overlay.
Optionally add a coloured border.
Export as JPG, PNG or WEBP at 1280×720.
Related tools
Keep going — pair this with another quick tool.
Frequently asked questions
Quick answers about how this tool works.
What size are YouTube thumbnails?
1280×720 (16:9), under 2 MB, JPG/PNG/WEBP. This tool exports exactly that.
How do I make text readable on busy backgrounds?
Enable the dark overlay, use a bold sans-serif weight, and pair white text with a thin dark outline. Keep the headline under 6 short words for thumb-sized previews.
Can I add my logo?
Use the Add Watermark tool after exporting to layer in a logo.
Does it upload my image?
No — everything is rendered in a browser canvas.
Why 16:9?
16:9 is the standard for video thumbnails and most modern blog hero images. It also crops cleanly on most social platforms.