400x400 black image

A 400×400 black image is a square bitmap where every pixel is fully opaque black (#000000). People use them as neutral placeholders in wireframes, social templates, app stores, and CMS “featured image” slots when the real creative is not ready yet.

This page focuses on that size first because it is a common square crop for avatars, product thumbnails, and ad creatives. You can still download other presets (500×500, 1080×1080, 1200×630, and more) or type any width and height you need, up to the limit below.

Files are standard PNGs with no transparency: the alpha channel is not used for “see-through” regions—the whole canvas is solid black. That keeps behavior predictable in every viewer and framework. File sizes stay tiny because PNG compresses large flat color areas very well.

Everything runs in your browser: we never receive your dimensions or store downloads. If you need a transparent “empty” asset instead, use a proper transparent PNG from a design tool; this utility is only for opaque black fills.