SVG vs PNG: When to Use Which
They aren't really rivals for the same job. One is drawing instructions, the other a grid of pixels - which settles the choice before file size ever comes up.
Use SVG for logos, icons, and flat illustration; use PNG for photographs, screenshots, and anywhere SVG is refused. The two formats were built for different kinds of image, so the choice rarely comes down to file size - it comes down to what your picture is made of.
An SVG stores drawing instructions: this circle, that curve, this colour. A PNG stores a grid of pixels. That single difference decides almost everything below - so before comparing them, ask: is this a drawing made of shapes, or a picture made of pixels?
The difference at a glance
| SVG | PNG | |
|---|---|---|
| What it stores | Shapes as maths | A fixed grid of pixels |
| Scales to any size | Yes, always sharp | No, frozen at export size |
| Transparency | Yes | Yes |
| Photographs | Impractical | Handles them well |
| Logos and flat art | Ideal | Good, but one fixed size |
| Accepted everywhere | No, often rejected | Yes, universal |
Notice that transparency isn't the deciding line here - both formats have it, which is exactly why so many people carry a PNG logo around instead of the SVG. The real fork is elsewhere.
Choose SVG when
- It's a logo, icon, or flat illustration you have as a vector. One small file stays razor-sharp from a favicon to a billboard, and it never needs re-exporting for a bigger screen.
- It's going on the web and you control the page. SVG can be styled and animated with CSS, and browsers render it natively.
- You want the master to keep. The SVG is the one file you can always regenerate any raster from - so it's the thing not to lose.
Choose PNG when
- It's a photograph or a screenshot. These are pixels by nature; there are no shapes to describe, so SVG has nothing to work with. PNG is built for exactly this - and for anything with transparency that isn't a vector.
- The destination won't take an SVG. This is the usual reason people convert, and it's covered below.
- You need one file that opens anywhere, no questions asked - an email signature, a marketplace listing, a document.
The awkward part: SVG gets refused a lot
This is what sends most people looking in the first place. Plenty of places won't accept an SVG - social profile fields, older upload forms, email clients, some design tools. Part of that is inertia; part is deliberate, since an SVG is really a text file and can carry scripts, so many platforms block it on principle.
So you rasterize. SVG to PNG draws your vector with the browser's own rendering engine and captures the result, entirely on your device - transparency intact, because PNG keeps an alpha channel. The one setting that matters is the width, and the tool puts it in front of you: whatever you pick is the resolution the PNG is frozen at forever.
Choose generously. You can always scale a PNG down cleanly; you can never meaningfully scale one up. If a logo sits at 200px on the page, export it at 400px or more - high-DPI screens render at multiples of the nominal size, so a PNG exported at exactly its display size looks soft on any modern phone. Exporting large costs only file size, and Compress PNG gives most of that back, since flat vector art compresses very well. Our full walkthrough on converting SVG to PNG covers the decision in more depth.
Keep it PNG, not JPG. SVG to JPG exists for a small flattened preview, but JPG has no transparency - so a transparent logo arrives on a solid white rectangle - and its compression fuzzes the sharp edges vector art is made of. For anything you'd call a logo, that's the wrong trade; see JPG vs PNG for why.
You can't reliably go PNG back to SVG
People ask constantly, so it's worth stating plainly: turning a PNG into an SVG means tracing - software stares at the pixels and guesses what shapes were meant. It manages clean flat artwork and fails on anything detailed, approximating rather than recovering your original. babapic's converters all produce raster formats; there's no PNG-to-SVG tool here, and anything advertising that conversion elsewhere is running a trace. The lesson is the one the whole topic keeps arriving at: the SVG is the file you cannot regenerate, so keep it.
FAQ
Is SVG better quality than PNG?
For logos, icons, and flat illustration, yes - it's sharp at every size from one small file. For photographs it isn't a contender at all, because a photo is pixels, not shapes. Quality isn't really the axis; content type is.
Which file is smaller, SVG or PNG?
For a simple logo or icon, the SVG is usually far smaller and stays that way at any size. For a photograph, SVG isn't an option, so the real comparison is PNG against a JPG.
Should I use SVG or PNG for a website logo?
SVG if you control the page - it's smaller and sharp on every screen. Export a PNG only for the places that reject SVG, and keep the SVG as your master.