Convert JPG to PNG Online Free

Turn JPG photos into PNG with no further quality loss, ready to edit or get a transparent background. Supports batch conversion — select multiple JPGs and download it all as a ZIP. No sign-up, no file upload.

Drag one or more JPG files here

or click to browse — multiple files supported · also accepts PNG, WebP, and BMP

Convert to

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PNG —

Original format

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Final format

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Original size

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Final size

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When converting JPG to PNG makes sense

JPG is a delivery format: it was created to make photos light enough to travel through email, social media, and websites. The price is lossy compression — and it’s cumulative. Every time you open, edit, and save a JPG again, more detail gets discarded, and the effect builds up until visible smudges appear.

PNG is a working format. It stores the image with zero loss and supports an alpha channel, which means transparent backgrounds. Converting a JPG to PNG doesn’t recover quality already lost, but it freezes the image in its current state: from then on, no matter how many times you save it, nothing degrades further.

That’s why this conversion usually happens before an edit, not after. Designers convert to PNG when they start working on a logo received as a JPG, when preparing a scanned signature for a contract, or when assembling artwork that will be cropped. It’s also the way to go when the destination platform simply requires PNG.

Criterion	JPG	PNG
Compression type	Lossy	Lossless
Transparency	No	Yes
Quality after repeated saves	Degrades	Intact
Edges and fine text	Creates artifacts	Stay sharp
File size	Small	3 to 8 times larger
Best for	Publishing and sharing	Editing and archiving

Why use this converter?

Total privacy

Conversion happens right in your browser. No file is ever sent to an external server.

Batch conversion

Select dozens of images at once and download them all converted in a single ZIP file.

Instant preview

See the converted image before downloading, with the final size shown in real time.

Works offline

Once the page has loaded once, the tool keeps working even without an internet connection.

How to convert JPG to PNG step by step

The first step is loading your files. Drag the JPG images into the dashed area at the top of the page, or click it to open your system’s file picker. There’s no limit on quantity or size: it can be a single file or an entire folder of photos. On mobile, the picker opens right into your gallery and lets you select several images at once. As soon as the files are added, conversion starts on its own — there’s no “convert” button to click.

If you uploaded a single file, the tool opens in Single image mode, with a preview of the generated PNG and four indicators: original format, final format, original size, and final size. Watch these numbers closely for this specific conversion, because the PNG is almost always larger than the source JPG — that’s normal and expected. With two or more files, the tool automatically switches to Batch mode, showing a table with each image’s name, size before and after, and a status dot that turns green as each conversion finishes.

The target format on this page is already set to PNG. Even so, the four buttons above the preview let you switch to JPEG, WebP, or BMP at any time, with no page reload or reselecting files. If the PNG size worries you, try clicking WebP and comparing: it keeps transparency and lossless quality but usually produces much smaller files. The two buttons at the top of the panel also let you switch manually between single and batch mode.

Finally, download the result. In single mode, use the Download converted image button. In batch mode, the Download all converted (ZIP) button bundles everything into one compressed file. If you only want some of the images, each table row has its own download button and an X to discard that item before generating the ZIP. All conversion runs inside the browser, with no upload to a server — which makes the tool safe for documents, contracts, and personal photos.

Frequently asked questions

Does converting JPG to PNG improve image quality?

No. The conversion preserves exactly what’s in the JPG, but it doesn’t recover what lossy compression already discarded. The resulting PNG looks identical to the original JPG — it just won’t lose anything further from that point on.

Why did the PNG end up much larger than the original JPG?

That’s expected. PNG stores every pixel without discarding information, so a 500 KB JPG can become a 3 to 5 MB PNG. That increase is the price of having no further losses. If size is an issue, consider WebP, which supports transparency like PNG but produces much smaller files.

Will the generated PNG have a transparent background?

Not automatically. PNG supports transparency, but the source JPG has no alpha channel — so the converted file keeps the solid background that was already in the image. Converting to PNG only enables the possibility of transparency for future edits. To actually remove the background, use the background remover tool and then save as PNG.

When is it worth converting JPG to PNG?

In three main cases. First, when the image will go through several rounds of editing: every time you save a JPG it loses a bit more quality, while PNG never degrades. Second, when you’re going to crop out an element and need a transparent background in the result. Third, when the destination system requires PNG — some logo, favicon, presentation, and digital signature platforms only accept this format.

Can I convert several JPG files to PNG at once?

Yes. Drag as many files as you want — the tool automatically switches to batch mode, converts all of them, and makes the ZIP download available. Each row in the table also has its own download button.

Is PNG better than JPG for logos and scanned signatures?

Yes, and the difference is visible. JPG compression creates artifacts around fine lines, sharp edges, and flat color areas — exactly what makes up a logo or a scanned signature. The result is grayish smudges around the strokes. PNG preserves edges precisely and still allows a transparent background, which makes the logo usable over any color. For web use, lossless WebP does the same job with smaller files.

Does the tool work on mobile?

Yes. It works in any modern browser — Android, iPhone, tablet, or computer — no app install needed.