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DYNAMB

PNG to JPG converter

PNG files are lossless, which makes them large — a screenshot can easily be several megabytes. Converting to JPG usually cuts that by 80% or more, which is why forms and email attachments prefer it.

  • No upload — files stay on your device
  • Works offline once loaded
  • Free forever, no signup, no watermark
Drop images here, or tap to choose {{ acceptHint }} — up to 25 at a time, nothing is uploaded
Quality
Largest side (px, optional)
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How to use this tool

  1. Add your images

    Drop in up to 25 files at once, or tap to choose them. Conversion starts straight away.

  2. Set quality and size

    Lower the quality slider to make files smaller, and cap the largest side if you also want fewer pixels.

  3. Download

    Save each file individually, or use Download all to get the whole batch.

Questions people ask

What happens to transparent areas in my PNG?

JPG has no transparency, so any transparent pixels are filled with white. If you need to keep transparency, convert to WebP instead, which supports it and is still much smaller than PNG.

Why is my PNG so much bigger than a JPG?

PNG stores every pixel exactly, which is ideal for screenshots, logos and line art. JPG throws away detail the eye barely notices, which suits photographs and produces far smaller files.

Are my images uploaded anywhere?

No. The conversion runs in your browser using the Canvas API, and this site has no upload endpoint. Once the page has loaded you can go offline and it still works.

Is there a file size or batch limit?

You can convert 25 images at a time, and file size is limited only by your device's memory. Because there is no server involved, there is no daily cap and no account to create.

Does converting reduce the image quality?

Converting to PNG is lossless. Converting to JPG or WebP re-compresses the picture, so the quality slider controls the trade-off — 82% is a good default that most people cannot distinguish from the original.

Related tools

Free because it costs us nothing to run: your browser does the work, not our servers. Made by Dynamb Technologies — we build software for businesses.