JPG to PNG Converter Online – Convert JPEG to PNG Free

100% Private Runs in Your Browser Free & Unlimited

JPG to PNG Converter

Convert JPG/JPEG images to lossless PNG format directly in your browser — with exact dimensions preserved, batch processing and ZIP download. No uploads, no servers, no sign-up.

1. Upload JPG/JPEG Images

Drag & drop your JPG/JPEG files here

or

Browse Files

JPG/JPEG files only · Maximum 50 MB per file · Up to 50 images per batch

…or choose files from your device

Selected files 0

2. Conversion Settings & Info

Output format

JPG / JPEG PNG (lossless)

Every image keeps its exact original pixel dimensions and aspect ratio — nothing is resized, cropped, stretched or filtered.

Filename suffix (optional)

image .png

Converted files are named e.g. photo-converted.png. Leave empty to keep the original name with the new .png extension.

Important — what PNG can and cannot do: PNG uses lossless encoding, so it stores the image exactly as decoded. It does not improve image quality or restore detail already lost to the original JPG compression — existing artifacts become part of the PNG pixels. Because PNG keeps every pixel losslessly while JPG discards data to shrink files, converted PNGs are often noticeably larger than the source JPG. This is normal and expected.

Converting JPG to PNG…

Preparing files…

0%

3. Converted Results

How to Convert JPG to PNG Online

1. Upload one or multiple JPG/JPEG images using drag & drop or the file browser.
2. Review the uploaded file list — remove any file you don't want to convert.
3. Click Convert to PNG and follow the progress bar while your browser processes the images.
4. Review the converted PNG preview and the file-size statistics.
5. Compare sizes and dimensions — note that PNG files are often larger than JPG.
6. Download individual PNG files, or grab everything at once as a ZIP archive.
7. Use Reset to clear everything and start a new batch.

---

Lossless format, honest expectations: PNG encoding is lossless, but it cannot undo lossy JPG compression. Artifacts already baked into your JPG remain in the PNG — conversion changes the format, not the visual quality. Because nothing is discarded, PNG files are frequently larger than JPG, especially for photographs.

100% local processing: every conversion happens inside your browser. Original JPG files are never uploaded, transmitted or modified — they stay untouched on your device.

Frequently Asked Questions

Upload one or more JPG/JPEG files (drag & drop or browse), click Convert to PNG, then download each PNG individually — or grab all of them at once as a ZIP archive.

Yes — completely free and unlimited. No registration, no watermarks and no hidden limits. Convert as many images as you like, as often as you like.

No. The conversion runs entirely inside your browser using the HTML5 Canvas API. Your files never leave your device — the tool keeps working even if your internet connection drops after the page has loaded.

No. Converting changes the storage format, not the image content. The PNG contains exactly the same pixels as the decoded JPG — no more detail, no sharper edges and no better colors. A format conversion cannot add information that the JPG compression already discarded.

No. JPG artifacts (blocking, ringing, color shifting) are permanently part of the decoded pixel data. PNG stores them losslessly and faithfully — which means they become "frozen" into the file. Only dedicated restoration or re-editing workflows can reduce artifacts, and even then never perfectly.

JPG is a lossy format designed to shrink photographs by discarding detail the eye barely notices. PNG is lossless and keeps every pixel exactly. For photos this means PNG files are often several times larger — sometimes 3–10×. The tool shows the exact size change for every image, so there are no surprises.

No. Your image keeps its exact original pixel dimensions and aspect ratio — nothing is stretched, cropped, rotated, resized or filtered during conversion.

Yes — add up to 50 JPG/JPEG files per batch. Every image is processed sequentially with the identical conversion logic, and you can download each PNG separately or all of them together in a single ZIP archive.

Absolutely. The tool is fully responsive and touch-friendly, and works in modern mobile browsers such as Chrome, Safari, Firefox and Edge on both Android and iOS.

PNG preserves the decoded JPG image exactly — every pixel is stored losslessly, so the file will never degrade further through saving or re-saving. But it preserves that quality as it exists after JPG compression: the detail lost when the JPG was originally created is already gone and cannot be carried into the PNG.

Yes. The Download All (ZIP) button bundles every converted PNG into a single ZIP archive, with automatic handling of duplicate filenames so nothing gets overwritten.

Never. Your original JPG/JPEG files are only read from disk — they are never edited, renamed, moved or overwritten. The conversion creates brand-new PNG files alongside them, entirely in your browser's memory.

Privacy notice: all JPG-to-PNG conversion happens locally inside your web browser. Your images are never uploaded to a server, transmitted over the internet, or shared with third parties. Original JPG files remain untouched on your device, and everything is removed from memory when you close or reset the page.