JPG to PNG Converter — Free & Lossless, No Upload, No Watermark

Price	100% free, no sign-up
Input	.jpg / .jpeg
Output	PNG (lossless), batch to 60 files
Processing	Runs locally in your browser — no upload

What is JPG to PNG Converter?

JPG to PNG conversion re-encodes a compressed photo as a lossless PNG. It is worth understanding what it can and cannot do: converting cannot bring back detail the JPG already threw away, so the PNG will look the same as the JPG — but from that point on, every save, crop, resize and edit is lossless, with no second generation of compression artefacts. That is why image editors, print workflows and design tools prefer PNG as an intermediate format. PNG also supports transparency and sharp-edged graphics better, so it is the right container when a JPG needs to become part of a layered composition or a graphic with text. The conversion runs entirely in your browser — no server, no upload, no account.

Common Uses for JPG to PNG Converter

Prepare a JPG for repeated editing without adding compression artefacts
Turn a photo into PNG before cutting it out or compositing it
Archive images in a lossless container for long-term storage
Convert JPGs to PNG for tools that only accept PNG uploads
Produce PNG assets for apps, slides and documents that require the format

The one-way street of compression

JPG compression is a one-way street: it approximates the image and discards information that human eyes are less sensitive to. Converting to PNG preserves that approximation exactly, but does not reverse it. So the honest use of JPG to PNG is not 'restore quality' — it is 'stop losing more'. If you must edit a JPG heavily, convert to PNG first, do all the work, then export once at the end at high quality.

When PNG is the right container

PNG is the standard container for screenshots, UI mockups, diagrams, logos and anything with flat colour or text, because lossless storage keeps edges crisp and it supports an alpha channel. If you are building an interface, a slide deck or a diagram and you started from a JPG photo, converting to PNG before you paste and crop is the cleaner path.

Keeping files manageable

Because PNG files are large, the usual professional loop is: convert to PNG, edit, then export to JPG or WebP for delivery. If you need PNG output with smaller size, run the PNG through the PNG-to-WebP converter — WebP keeps the lossless option and transparency while producing a far smaller file for the web.

Frequently Asked Questions

Will converting JPG to PNG improve quality?

No. The detail lost when the JPG was created is gone permanently — no converter can restore it. What PNG gives you is no further loss: the file you get is an exact copy of what the JPG contained, and every later edit stays lossless.

Why is the PNG bigger than the JPG?

Because it stores pixels exactly instead of compressing them lossily. A 400 KB JPG can become a 2–3 MB PNG. That is the trade for lossless editing: convert, edit, then export back to JPG or WebP when you are finished.

Can PNG add transparency to a JPG?

Not automatically — a JPG has no transparent pixels to preserve, so the PNG starts fully opaque. You can then delete areas to transparency in an editor, which is a common reason to convert first.

Is PNG or JPG better for printing?

For photos, JPG at high quality is smaller and prints identically. PNG matters for graphics, logos, screenshots and anything with sharp edges or transparency. Many print shops accept both and will convert internally.

How many files can I convert at once?

Up to 60 per run in this converter. All processing happens on your device, so large batches are limited by your machine's memory rather than by any upload quota.