SVG vs PNG: Differences and When to Convert

SVG vs PNG: the fundamental difference

SVG (Scalable Vector Graphics) and PNG (Portable Network Graphics) represent images in fundamentally different ways. SVG files describe shapes, lines, and curves using mathematical equations — they're essentially code. PNG files store images as a grid of coloured pixels.

This means SVGs can scale to any size without losing quality (a logo looks crisp whether it's 16px or 16,000px), while PNGs are fixed at whatever resolution they were created at. Enlarge a PNG too much and it gets blurry.

When SVG is the right choice

• Logos and icons: Need to look sharp at every size, on every screen density.
• Illustrations: Flat artwork with clean lines and solid colours.
• Interactive graphics: SVGs can be styled with CSS and animated with JavaScript.
• Web development: SVGs are tiny and can be inlined directly in HTML.

When you need PNG instead

Despite SVG's advantages, there are many situations where a rasterised PNG is what you need:

• Social media uploads:Most platforms (Facebook, Instagram, LinkedIn) don't accept SVG files. They need PNG or JPEG.
• Email signatures: Email clients have inconsistent SVG support. PNG is the safe choice.
• Presentations: PowerPoint and Google Slides handle PNG better than SVG in many cases.
• Print: Print workflows typically need raster formats at specific DPI settings.
• Thumbnails and favicons: You need a specific pixel size, and PNG is the standard.
• Application requirements: Many apps, forms, and upload fields only accept raster image formats.

How SVG to PNG conversion works

Converting SVG to PNG is called “rasterisation” — the process of converting vector shapes into a pixel grid. The key decision is what resolution to use, since SVGs have no inherent pixel size.

FlipFiles reads the SVG's viewBoxdimensions to determine the natural size, then renders it to a Canvas element in your browser and exports the result as PNG. The conversion happens entirely in your browser — the SVG never leaves your device.

Choosing the right resolution

Since SVGs are resolution-independent, you need to decide what pixel dimensions to export. Common targets:

• Social media headers:1500×500px (Twitter/X) or 1200×630px (Facebook/LinkedIn OG image).
• Favicons:32×32px, 180×180px (Apple touch), or 512×512px (PWA).
• App icons:1024×1024px is the standard for iOS and Android stores.
• Print: Multiply the physical size in inches by the DPI (typically 300 for print).

Tips for the best results

• Check the viewBox: SVGs with a defined viewBoxconvert more reliably. If an SVG doesn't have one, the converter will use sensible defaults.
• Embedded fonts: If your SVG uses custom fonts, they should be embedded in the file or converted to paths. Otherwise, the browser may substitute a default font.
• Transparency: PNG supports transparency, so transparent areas in your SVG will be preserved.
• Complex SVGs: SVGs with filters, gradients, and effects generally convert correctly since the browser renders them natively before exporting.