Why Convert Image Formats?

Different image formats excel at different things. A PNG screenshot at 2MB might compress to 400KB as WebP with no visible quality loss. A HEIC photo from your iPhone can't be opened on a Windows PC without conversion. An AVIF file offers the best compression available today but isn't supported by older browsers.

Choosing the right format depends on your use case: web performance, compatibility, quality preservation, or file size. kinja-img.com lets you convert between 10 formats through 27 dedicated converter pages, each optimized for a specific conversion pair.

Supported Formats Explained

  • WebP — Google's modern format. 25-35% smaller than JPEG at equivalent quality. Supported by all modern browsers. The best general-purpose web format today.
  • AVIF — the newest format, based on AV1 video codec. 50% smaller than JPEG. Excellent quality but slower to encode. Growing browser support.
  • JPG/JPEG — the universal standard. Works everywhere, great for photos, lossy compression. The safe default choice.
  • PNG — lossless format, perfect for screenshots, logos, and images with text. Larger files but zero quality loss.
  • GIF — limited to 256 colors but supports animation. Being replaced by animated WebP and AVIF.
  • BMP — uncompressed bitmap. Huge files, no quality loss. Legacy format still used in some Windows applications.
  • TIFF — high-quality format used in print and professional photography. Large files, excellent color depth.
  • ICO — favicon format for websites. Small, fixed-size icons.
  • SVG — vector format, infinitely scalable. Perfect for logos and icons. Can be converted to raster (PNG/JPG) at any resolution.
  • HEIC — Apple's format used by iPhones. Great compression but limited compatibility outside Apple devices.

How to Convert

Each conversion has its own dedicated page at /convert/{source}-to-{target}. For example:

  1. Go to /convert/png-to-webp
  2. Upload your PNG file (drag & drop, browse, or Ctrl+V paste)
  3. The conversion happens on the server using optimized libraries
  4. Download the converted WebP file

You can also use the dedicated landing pages for the most common targets: Convert to WebP, Convert to AVIF, Convert to JPG.

PNG → WebPSmaller screenshots JPG → WebPWeb optimization PNG → AVIFMaximum compression JPG → AVIFNext-gen photos WebP → PNGCompatibility HEIC → JPGiPhone photos SVG → PNGRasterize vectors BMP → WebPModernize legacy

All 27 conversion pairs are listed at the bottom of any converter page.

Convert via URL Parameters

If you've already uploaded an image to kinja-img.com, you can convert it on-the-fly by adding a format parameter to the CDN URL:

# Original PNG
https://i.kinja-img.com/a1b2c3/image.png

# Converted to WebP via URL parameter
https://i.kinja-img.com/a1b2c3/f_webp/image.png

# Converted to AVIF with quality 80
https://i.kinja-img.com/a1b2c3/f_avif,q_80/image.png

This is useful for serving optimized images on websites without re-uploading. Use the f_webp or f_avif parameters in your <picture> elements for automatic format optimization.

Convert an Image →