What this tool does
Convert supported image formats in your browser, with batch output and controls for quality and transparency.
Practical guidance
Choose JPG for compatible photographs, PNG for sharp graphics or transparency, WebP for broad modern web delivery, and AVIF when maximum compression matters and decoder support is known.
Three simple steps
- Add one or more supported images.
- Choose the output format and quality.
- Convert locally and download the new files.
Private by design
Your images are processed in this browser. They are not sent to our server.
Frequently asked questions
What happens to transparency when converting to JPG?
JPG cannot store transparency, so transparent areas use the selected background color.
Can every browser open AVIF?
AVIF support varies. Image PDF Tools uses local components where possible and reports unsupported files clearly.
Concrete input and output example
Input a transparent 1200×600 PNG logo and choose JPG. The output is an opaque JPEG with a fixed white background because this UI has no background selector; choose PNG or WebP when alpha must remain.
Browser compatibility notes
Reviewed against the implementation and required web APIs on 2026-08-12. Use a current browser where these APIs are available and verify important output on your device.
- Chrome / Edge (current desktop)
- Requires local decode, canvas, encoding, Blob download, and enough memory; verify the downloaded image.
- Firefox (current desktop)
- Uses the same standard local APIs; color rendering can differ slightly from Chromium.
- Safari (current desktop)
- Uses canvas and Blob downloads; available memory and codec behavior remain WebKit-controlled.
A tool-specific question
Why is my converted file larger?
Format choice and image content matter more than the extension. A lossless PNG photo can be much larger than its JPG or WebP source.