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How to Convert Images Between PNG, JPG, WebP and SVG

The complete guide to image format conversion. When to use PNG vs JPG vs WebP vs SVG, and how to convert between them for free.

OneKitTools TeamMarch 31, 2026

Choosing the Right Image Format

Every image format has strengths and weaknesses. Using the wrong format can make your images too large, too blurry, or incompatible with your target platform.

Here's when to use each format:

PNG — Perfect for Graphics

Portable Network Graphics — lossless compression with transparency support.

Use PNG when you need:

  • Transparent backgrounds (logos, icons, overlays)
  • Screenshots and UI mockups
  • Graphics with text (crisp edges, no compression artifacts)
  • Images that will be edited further

Avoid PNG for: Photographs (files will be 5-10x larger than JPEG)

Typical file size: 100 KB - 5 MB

JPG/JPEG — Best for Photos

Joint Photographic Experts Group — lossy compression optimized for photographs.

Use JPEG when you need:

  • Photographs and realistic images
  • Email attachments (small file sizes)
  • Social media uploads
  • Print-ready images

Avoid JPEG for: Graphics with text, logos, or transparent backgrounds (compression creates artifacts around sharp edges)

Typical file size: 50 KB - 2 MB

WebP — The Modern Standard

WebP by Google — supports both lossy and lossless compression, transparency, and animation.

Use WebP when you need:

  • Web images (25-35% smaller than JPEG at same quality)
  • Transparent images smaller than PNG
  • Animated images (better quality than GIF at smaller size)
  • Maximum performance for websites

Avoid WebP for: Print (not supported by many design tools), email (some clients don't display it)

Typical file size: 30 KB - 1.5 MB

SVG — Infinite Scale

Scalable Vector Graphics — XML-based vector format.

Use SVG when you need:

  • Logos and icons that scale to any size
  • Simple illustrations and diagrams
  • Interactive graphics (can be styled with CSS)
  • Tiny file sizes for simple shapes

Avoid SVG for: Photographs, complex images (the file becomes enormous)

Typical file size: 1 KB - 50 KB

Format Comparison Table

FeaturePNGJPEGWebPSVG
TransparencyYesNoYesYes
AnimationNoNoYesYes (CSS)
Lossy compressionNoYesYesN/A
Lossless compressionYesNoYesN/A
Best for photosNoYesYesNo
Best for graphicsYesNoYesYes
File size (photo)LargeSmallSmallestN/A
Browser support100%100%97%100%

How to Convert Images

PNG ��� JPG ↔ WebP

Our Format Converter handles all three formats:

  1. Upload your image
  2. Select the target format
  3. Adjust quality (for JPEG/WebP lossy)
  4. Download the converted file

Supports batch conversion — convert dozens of images at once.

SVG to PNG

Need a raster version of your vector? SVG to PNG converts with custom dimensions:

  • Set exact pixel dimensions (e.g., 512x512 for app icons)
  • Transparent background preserved
  • High-DPI output (2x, 3x)

PNG to SVG (Vectorization)

Want to turn a raster image into a scalable vector? PNG to SVG traces the image:

  • Works best with simple graphics, logos, and icons
  • Adjustable detail level
  • Clean SVG output

Quick Conversion Cheatsheet

Start Converting Now

All our image conversion tools are free and process your files locally in your browser. No upload, no watermark, no signup.

Try the Format Converter now.

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