SVG vs PNG vs WebP: Which Format Should You Use?

Updated June 2026 · 3 min read

SVG, PNG, and WebP solve different problems. Picking the wrong one means either a file 10x larger than necessary or an image that looks broken. Here's when to use each.

The Fundamental Difference: Vector vs Raster

SVG is a vector format — it stores math (lines, curves, coordinates), not pixels. This means it scales infinitely. A 32×32 SVG icon and a billboard-sized version are the same file, rendered sharp at any size.

PNG and WebP are raster formats — they store a grid of colored pixels. Enlarge them and they blur. But for photos, screenshots, and complex imagery, raster is the only option because you can't describe a photograph with math.

When to Use SVG

• Logos and icons: The prime SVG use case. A 2 KB SVG logo is sharp on a phone and a 4K monitor. A PNG version would be 50 KB.
• Charts and diagrams: Anything with geometric shapes, lines, and text.
• Simple illustrations: Flat-design graphics with limited color palettes.
• Don't use SVG for: Photos, detailed screenshots, or anything with gradients and textures — the file size explodes and rendering gets slow.

When to Use PNG

• Screenshots and UI mockups: PNG's lossless compression preserves sharp text and interface edges. JPG would create compression artifacts around text.
• Images needing transparency: Logos on colored backgrounds, product photos that need clean cutouts.
• When you can't afford any quality loss: Medical images, archival documents, anything where pixel-perfect accuracy matters.

When to Use WebP

• The all-rounder for the web: Lossy WebP for photos (25-35% smaller than JPG), lossless WebP for graphics (26% smaller than PNG).
• When file size matters more than maximum quality: Blog posts, e-commerce galleries, any page with multiple images.
• When format conversion is the goal: Need a PNG file as WebP for your website? Our converter does it instantly, in-browser.

Decision Flowchart

Is it a logo, icon, or simple graphic? → SVG.
Is it a photo? → WebP (lossy, 85% quality).
Is it a screenshot or needs pixel-perfect transparency? → PNG, then optionally convert to lossless WebP to save 26%.