Free Online Image Format Converter

This online image format converter batch converts JPG, PNG, WebP, and AVIF images between formats. It is useful for PNG to JPG, JPG to WebP, WebP to PNG, and AVIF conversion workflows. Upload images, choose the target format, and convert them locally in your browser without uploading files to a server.

How To Convert Image Formats

  1. Upload one or more images.
  2. Choose the output format: JPG, PNG, WebP, or AVIF.
  3. Adjust image quality when exporting JPG, WebP, or AVIF.
  4. Click convert images.
  5. Review the result size, dimensions, and preview for each file.
  6. Download one converted image or download all results as a ZIP file.

Choosing JPG, PNG, WebP, Or AVIF

JPG is a good choice for photos, product images, blog images, and pictures that do not need transparency. PNG is better for transparent backgrounds, screenshots, icons, sharp lines, and text-heavy images. WebP is a strong web format with smaller files and transparency support. AVIF can create even smaller files for modern browsers, though compatibility depends on the browser and downstream software.

For general website images, WebP is usually a good default. For transparency, use PNG or WebP. For older software or systems, JPG and PNG remain the safest choices.

What Happens When PNG Converts To JPG

JPG does not support transparency. When converting PNG, WebP, or AVIF images to JPG, this tool automatically flattens transparent areas onto a white background so the exported image looks predictable.

Why Convert JPG To WebP

JPG to WebP conversion often reduces website image size and helps pages load faster. It is useful for blog images, product images, galleries, and image-heavy pages where smaller files matter.

When To Convert WebP To PNG

Some design tools, office tools, upload systems, and older apps do not support WebP. Converting WebP to PNG keeps sharp edges and transparency, though the output file may become larger.

AVIF Support

AVIF can provide excellent compression, but encoding is slower than JPG, PNG, and WebP. This tool uses a local AVIF encoder in the browser and does not depend on canvas.toBlob("image/avif"). Large images or many images at once may use more memory, so reduce the batch size or choose JPG, PNG, or WebP if AVIF conversion fails.

Privacy

Image reading, format conversion, previews, downloads, and ZIP packaging all happen locally in your browser. Your files are not uploaded to a server or stored in the cloud. Temporary preview data is released when the page is closed.