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PNG or SVG: which format should you use?

PNG and SVG solve different problems. Here is how to tell which one fits your image and when converting between them pays off.

PNG or SVG: which format should you use?

Two images can look identical on screen and still behave in completely different ways once you scale them, edit them, or ship them to production. PNG and SVG sit on opposite sides of that divide, and picking the right one saves you a lot of rework later.

What each format actually stores

A PNG is a grid of pixels. Every dot has a fixed color, so the file describes exactly what the image looks like at one specific size. Zoom past that size and the browser has to guess at the missing detail, which is why enlarged PNGs turn soft and blocky.

An SVG stores instructions instead of pixels. It says draw a circle here, fill this shape with that color, and follow this path. The browser redraws those instructions at whatever size you ask for, so the result stays sharp on a phone, a laptop, or a billboard.

When PNG is the better pick

Photographs belong in PNG or JPG. They contain thousands of subtle color shifts that vector paths cannot describe efficiently, and trying to trace them produces a bloated file that still looks worse than the original.

PNG is also the safe choice when you need guaranteed transparency and lossless detail for a screenshot, a texture, or a UI mockup.

When SVG wins

Logos, icons, and flat illustrations are ideal SVG candidates. They use a small number of solid colors and clean edges, which vectors reproduce perfectly. One file then covers every screen density you will ever target.

Because an SVG is just text, it also compresses well, caches cleanly, and can be recolored with a single line of CSS.

Converting with intent

If you have a logo trapped in a PNG, tracing it back to vector paths gives you a flexible asset again. Our PNG to SVG converter offers a trace mode for exactly this, plus an embed mode for cases where you only need an SVG wrapper around the original pixels.

The rule of thumb is simple. Reach for SVG when the artwork is graphic and needs to scale, and stay with PNG when the image is photographic or highly detailed.