FileCPU

JPG to PNG Online Free — Your Files Are 100% Secure

Convert JPG to PNG online for free — lossless quality, pixel-perfect text. Files never leave your device — no signup, no watermark. Batch conversion.

Drop JPG images here

or

Max 25 MB per file · Secure and private — files are never stored

How it works

  1. 1Drop your JPG images into the box (or click to select them)
  2. 2PNG is lossless — no quality settings needed
  3. 3Click "Convert" — everything happens on your device
  4. 4Download your PNGs — individually or as a ZIP

Why PNG at all

Some places ask for PNG by name: upload forms that will not take a JPG, design tools that expect lossless input, archives where the picture must stay bit-perfect. PNG is also the right format for images full of text and hard edges — screenshots, diagrams, line art — where JPG's compression would soften exactly the details you care about.

This converter turns JPGs into clean PNGs: the decoded pixels are re-saved losslessly, with no recompression artifacts added.

An honest note: the PNG will be bigger

Lossless means every pixel is stored exactly, so a PNG copy of a photo is usually several times larger than the JPG it came from — the trade is size for fidelity. Converting cannot restore detail the JPG already discarded, but it guarantees no further loss from editing, saving and re-saving.

If the result needs to travel under a size limit, Compress Image handles that — or keep the JPG for sending and the PNG for archiving.

No quality loss, no surprises

There are no quality dials to misconfigure: PNG output is deterministic and lossless, every time. What you see in the JPG is exactly what lands in the PNG — same dimensions, same colors, now in a container that never degrades.

Private and offline

Conversion runs entirely in your browser — the JPG is read from your disk, decoded, and the PNG written straight back. Files never leave your device, no copy is kept anywhere, and once the page has loaded the conversion works even with the internet disconnected.

Free with no account, no watermark and no daily caps; up to 30 images per batch delivered as one ZIP.

When JPG is the better answer

Most of the time, honestly, it is: photos as JPGs are smaller, open everywhere, and lose nothing visible. PNG earns its size only for transparency, text-heavy images and lossless editing. The reverse trip — shrinking PNGs into JPGs — lives at PNG to JPG.

Building a PDF from either format is JPG to PDF, one page per image — or PNG to PDF keeps PNGs lossless with transparency intact.

Frequently asked questions

Is this JPG to PNG converter free?

Yes — no signup, no watermark, no limits of any kind. Conversion runs on your device, so it costs nothing to serve.

Are my images uploaded to a server?

No — files never leave your device. Files are read locally, converted locally, and saved back to your device.

Does converting JPG to PNG improve quality?

It prevents future loss — PNG is lossless, so the image will not degrade no matter how often you edit and save it. It cannot restore detail the JPG already discarded when it was created.

Why is the PNG file larger than my JPG?

Because PNG stores every pixel exactly, while JPG compresses photographs aggressively. Expect several times the size — that is the price of lossless.

How many images can I convert at once?

Up to 30 per batch, each up to 25 MB, with all results packed into one ZIP.

Does it work on Mac, Windows and phones?

Yes — any modern browser on any device, with nothing to install. On phones, select images from your library and save the PNGs.

When should I use PNG instead of JPG?

When the destination demands PNG, when you need pixel-perfect text and edges, or when you plan to edit and re-save the image repeatedly without quality loss.

Can I convert back to JPG later?

Yes — the PNG to JPG tool on this site does the reverse trip, flattening any transparency onto white and shrinking the file.

Is there a quality setting?

No, and that is deliberate: PNG is lossless, so there is nothing to tune. The output is pixel-identical to the decoded input, every time.