PixExtender

PixExtender is a browser-based tool that expands image borders using AI outpainting, keeping quality up to 4096 pixels on the long side. It supports common formats including JPG, JPEG, PNG, and WEBP.

Natural frame expansion

PixExtender analyzes the original image—lighting, textures, and foreground/background elements—then generates missing areas so the extended frame looks consistent. This helps when a photo is too narrow, tightly cropped, or needs extra space around the subject.

Presets for social and cover sizes

Built-in presets make it easy to resize and extend images for specific platforms:

• YouTube thumbnails
• Instagram posts
• Pinterest pins
• Facebook covers
• LinkedIn banners
• Twitter banners

Who it’s for

PixExtender is useful for people who regularly prepare visuals and need quick, clean results without manual retouching:

• Designers
• Marketers
• Bloggers and content creators