SVG vs PNG: Which Format Should You Use for Logos and Icons?

SVG and PNG are both widely supported, but they solve completely different problems. Choosing the wrong one means blurry logos at large sizes, or unnecessarily large files on fast-loading pages. Here is the complete breakdown.

What is an SVG file?

SVG stands for Scalable Vector Graphics. Unlike raster images, an SVG is not a grid of pixels — it is a mathematical description of shapes, paths, and curves stored as XML text. This means an SVG can be scaled to any size — from a 16×16 favicon to a 50-metre billboard — and will always look perfectly sharp.

You can open an SVG in a text editor and read it. A simple circle looks like:

Because they are text, SVGs can be very small (a simple logo might be 2–5 KB), are indexable by Google, can be styled with CSS, and can be animated.

What is a PNG file?

PNG stands for Portable Network Graphics. It is a raster format — a grid of pixels with a fixed resolution. PNG uses lossless compression, so every pixel is stored exactly with no quality loss. PNG also supports a full alpha transparency channel, meaning individual pixels can be partially transparent — something JPG cannot do.

The trade-off: a raster image has a fixed resolution. Scale a 100×100 pixel PNG to 1000×1000 and it will look blurry because you are just enlarging existing pixels without adding new detail.

When to use SVG

SVG is the right choice for almost any logo, icon, or illustration that a designer would typically create in Illustrator or Figma. Specifically:

• Logos — must look sharp at any size, from a 32px browser tab to a 300px header
• Icons and icon sets — UI icons that need to scale between mobile and desktop displays
• Infographics and diagrams — charts, maps, illustrations made of paths and text
• Favicons — modern browsers support SVG favicons natively, which look perfect on retina displays
• Animated illustrations — SVGs can be animated with CSS or JavaScript without video codecs

When to use PNG

PNG is the right choice when the image contains photographic detail or complex pixel-level texture that cannot be represented efficiently as vectors:

• Screenshots — pixel-perfect UI captures, before and after comparisons
• Rasterized artwork — digital paintings, illustrations with complex gradients, photographic collages
• Transparent overlays — watermarks, stickers, or UI elements that need pixel-level alpha
• Social media graphics — exported at fixed pixel dimensions, always viewed at that size
• Platform compatibility — some older platforms, email clients, and productivity software do not support SVG

File size comparison

For a simple geometric logo, SVG typically produces a much smaller file:

• Simple logo as SVG: 2–8 KB
• Same logo as PNG at 512×512: 15–40 KB
• Same logo as PNG at 1024×1024 (for retina): 40–120 KB

However, for complex artwork with many paths and gradients, an SVG can become large (50–500 KB) while a PNG at normal web resolution stays small. Use a tool like SVGO to optimise SVG files before deploying.

Browser support

SVG is supported in all modern browsers (Chrome, Firefox, Safari, Edge) and has been since 2011. Internet Explorer 8 and below do not support SVG — in 2026 this is no longer a realistic concern for most projects. PNG is supported universally across everything from browsers to email clients to Word documents.

The hybrid approach

The best practice for logos is to maintain the source as SVG and export PNG versions at specific sizes when needed — for example, a 512×512 PNG for app stores, a 192×192 PNG for PWA manifests, and 16/32/48 PNG for ICO favicons. Keep the SVG as your master file and convert from it rather than trying to convert back from a raster format.

Quick decision guide

• Logo or icon created in Figma/Illustrator → SVG
• Photo or complex digital artwork → PNG
• Need it on all platforms including old software → PNG
• Need it animated with CSS → SVG
• Need the smallest possible file for a simple shape → SVG
• Need to email it as an attachment → PNG

Frequently asked questions

Can I convert a PNG logo to SVG?

Only with significant quality loss. Converting a raster PNG to a true vector SVG requires auto-tracing software like Inkscape or Adobe Illustrator. The result is rarely as clean as the original vector source. If your designer has the original SVG source file, always request that instead of converting from PNG.

Which format does Google prefer for favicons?

Google supports both SVG and PNG favicons in search results. An SVG favicon is preferred because it renders sharply on all display densities including high-DPI screens. For maximum compatibility also provide a 32×32 PNG and a traditional .ico file.

Does SVG support transparency?

Yes — SVG supports full transparency natively. You do not need a separate alpha channel; any unfilled areas in an SVG are transparent by default.

Can I use SVG in email newsletters?

No. Most email clients including Gmail, Outlook, and Apple Mail do not render SVG. Always use PNG for email graphics.