filetity

PNG -> JPG · Local tool

PNG to JPG

Turn PNG images into JPG files that are far smaller to send and store.

Last updated

  1. 01 / Your device

    the file stays here

  2. 02 / Browser memory

    the work runs locally

  3. 03 / Back to you

    saved on this device

When you would use this

Situations, not settings.

A screenshot that is far too heavy
PNG stores a photographic screenshot losslessly and pays for it. The same image as JPG is often a fifth of the size.
An upload that only takes JPG
Some forms list JPG alone, even when a PNG would have worked technically.
Photos going into a document
A report full of PNG photographs gets large quickly and slows down every device that opens it.

How it works / no cloud

A conversion engine, not an upload form.

filetity decodes the PNG with the browser's own codec, redraws it onto a white ground, and re-encodes it as JPG at the quality you choose. Nothing is uploaded and no engine is downloaded, because the browser already has both codecs.

  • Offline ready
  • Installable app
  • No file limit queue

Straight answers

No accordion. Nothing hidden.

Is it free?
Yes, with no watermark and no page limit.
Does it need an account?
No. There is no account system.
Is my file processed on my device?
Yes. The file is read by your browser and never uploaded. There is no server to send it to.
What formats are supported?
PNG in. JPG out, one file per image, or a ZIP when you convert several.
What are the limits?
No image count limit. Very large images are bounded by the memory your browser will give a canvas.
Does it work on mobile?
Yes, on any modern mobile browser. Large files are limited by the memory the phone gives the browser.
Does it work offline?
Yes, after you have used it once. Your browser keeps what the tool needs, so it then works with no network connection.
How much smaller will the file be?
For photographs, usually a great deal: PNG stores every pixel exactly and JPG does not. For screenshots, logos and flat colour the saving is smaller, and the result can look worse. The size is shown before you download, so you can judge it.
What happens to transparency?
It is filled with white, because JPG has no transparency channel. If the transparent area matters, keep the PNG or convert to WebP instead.
Will text and sharp lines still look right?
Less right than in the PNG. JPG is built for photographs and puts faint halos around hard edges, which is most visible on text and diagrams. Raise the quality setting if you can see it.
Why is the JPG bigger than my PNG?
Because the picture is flat colour or hard edges, which PNG packs extremely well and JPG does not. A tiny icon can come back several times larger. The result line says how much bigger, and tells you to keep the original if size is the reason you came.
What are Best, Balanced and Smallest?
Three JPG quality settings, 95, 85 and 60. Balanced is the default and is hard to tell from the PNG on a photo. Smallest cuts the file further and shows halos on text. Best is for anything you will edit again.
Can I shrink the pixel size as well?
Yes. The size menu offers a longest edge of 2048, 1600, 1024 or 640 pixels and scales the picture down to fit before encoding. Nothing is ever scaled up.

How this one works

Keep working locally

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