How to use JPG to PNG
- Choose a JPG image.
- Select Convert to PNG.
- Preview and download the PNG copy.
Useful to know
Converting JPG to PNG will not restore detail already lost through JPG compression, and the PNG may be larger.
How to convert a JPG to PNG
- Choose one JPG. It stays on this device. The limit is 25 MB and 40 megapixels.
- There is no quality field and no background colour on this page. PNG is written losslessly, and a JPG has no transparency to fill.
- Select Convert to PNG. The browser encodes the decoded pixels as a PNG in this tab.
- Read the preview and the file size, then download. The PNG will not look sharper than the JPG, and a photograph will usually be larger.
A PNG copy is a safer container, not a better photograph
People convert a JPG to PNG for three honest reasons. An editor, a print workflow or a client brief has asked for PNG. They expect to save the picture several times and do not want each save to add more JPEG damage. Or they plan to add a transparent background later, and they want a lossless file to do that work in. Those are container reasons. They are not quality reasons.
None of them put detail back. A JPG has already discarded information: fine texture, some colour, and often a little ringing around contrast. This page decodes the pixels the JPG still contains and writes those pixels into a PNG. The PNG then stores them without a further lossy pass. It does not reconstruct a camera original, undo an earlier save-for-web, or sharpen a soft face. If the JPG looks muddy, the PNG looks muddy. Keep the earliest export you still have. This converter cannot invent a master you no longer have, and converting the PNG back to JPG later still cannot.
The file gets larger, on purpose
PNG stores the decoded picture losslessly, including the noise and the block edges the JPG left behind. That is why the download grows. A photograph commonly becomes several times larger. Something in the region of three to ten times the JPG is a fair expectation for an ordinary photo, and it is not a promise you can quote. A small graphic with flat colour may grow less. A noisy night picture may grow more. The result panel prints the real width, height and file size before you download. Use that number.
Converting to PNG is the wrong move when the problem is an upload limit, an email cap or a slow page. You leave with a bigger file and the same picture. Stay on the JPG, or make a WebP copy when the site can serve WebP. WebP on that page is a delivery format. It is often far smaller than a PNG of the same photo, and it can be smaller than the JPG, but you should compare the preview rather than assume a percentage. If the app that asked for the file cannot open WebP, do not send one. WebP is widely supported in current browsers and still refused by some office tools, older editors and strict upload filters.
If the JPG itself is too big, use the image compressor on the JPG and leave the format alone. If it is the wrong pixel size, use the image resizer before you even consider PNG. Shrinking the canvas first avoids a huge lossless file of pixels nobody will display. Resize to the pixels the destination asked for, then decide whether that destination also asked for PNG. Doing both blindly, from a 4,000-pixel camera JPG, is how a simple format change becomes a 20-megabyte download.
Transparency is not created
A JPG has no transparent pixels, and this conversion does not add any. The PNG is a solid rectangle of the same width and height. A white studio sweep, a black backdrop or a busy street stays in the picture. There is no background-colour control on this page, because there is nothing to fill: the JPG was already flat. The other direction is the one with that control. The PNG to JPG converter flattens real transparency onto a colour, and that colour starts at white.
If you hoped the converter would cut a person, a product or a logo out of its background, it will not. Image Cosmos does not remove backgrounds. You can take this PNG into an editor that can, and further saves as PNG will not pile on extra JPEG loss while you do that work. That is the practical benefit for a cut-out you will make later. The clear background still has to be made by that editor. Until then, the corners of the PNG are the same corners as the JPG.
The reverse mistake is just as common. A logo or a screenshot that began as PNG, was flattened to JPG for a form, and is now being “converted back” does not regain its sharp edges or its clear background. The letters stay slightly muddy. If a true PNG or a vector of that logo still exists, use that file instead of this conversion.
When PNG helps, and when WebP is the better ask
Use the PNG when you will open the file again and save it again. Cropping, adding a label, adjusting colour and placing the image in a layout are all kinder to a PNG than to a JPG you re-export at a middling quality every time. Each JPG save can throw away a little more even when the quality number looks high. A PNG save of these same pixels does not. Use PNG when a tool refuses the JPG and names PNG specifically: some design apps, some print hand-offs, some icon pipelines. After the conversion, the crop tool can cut a region from the PNG, and that crop stays lossless.
Use WebP instead when the only goal is to publish the picture on a site that already accepts it. A PNG of a photograph is a poor web asset. It is large, and the browser still has to download every byte before the picture appears. JPG to WebP is the page for a photo you are about to put on a page. PNG to WebP is the one to use later, if you have a transparent graphic and you want a compact file that can keep the clear background. WebP to PNG is the reverse, for an app that cannot open WebP and wants a lossless file. WebP to JPG is the smaller compatibility file when lossless does not matter and you only need something old software can open.
Do not convert to PNG to make text sharper. If the letters were already blurred by JPEG, they stay blurred. Do not convert to dodge a file-size rule. Do not convert because a checklist says PNG is “lossless” and you have read that word as “better”. Lossless here means the PNG will not damage these pixels further. It does not mean the pixels are good.
What people expect, and what the file does
The hopes below are the ones that show up every time someone converts a photograph. The right-hand column is what this page actually produces. It is not a general essay on which format is superior. PNG versus JPG, for this direction, is a question about the JPG you already have.
| Hope | What this conversion does |
|---|---|
| A sharper photo | No. The PNG holds the JPG’s pixels. Softness, blocks and lost texture stay where they are. |
| A transparent background | No. Nothing is cut out. The rectangle stays solid. This page has no background control. |
| A smaller download | No. A photograph usually grows, often by several times. Read the size on the result. |
| Safer saves while you edit | Yes. Further saves as PNG do not add another JPEG pass. Damage already in the JPG remains. |
| A file to put on the web | Usually the wrong container. Prefer the original JPG, or WebP when the site can serve it. |
Privacy, EXIF and the limits that still apply
The browser reads the JPG, draws it and builds the PNG in this tab. Image Cosmos does not receive the image, store a copy or keep a job history. The limit is one file, 25 MB and 40 megapixels. There is no batch conversion and no zip. The temporary download disappears when you reload or close the page. Close it when you are finished, especially on a shared computer, because the preview lives in the tab’s memory until then.
Because the PNG is made from the visible pixels, the camera’s EXIF block and any GPS tag are not copied across. That is a side effect of drawing the image and encoding a new file, not a checked privacy product. This page does not scan the download and it will not tell you that metadata removal succeeded. If you need that sentence on the result, use the EXIF metadata remover and read its verification line. Colour profiles are not preserved either. A picture that depended on a special profile can shift slightly when the browser decodes it. Judge the preview on the screen you will actually use.
Keep the JPG until you are sure the PNG is the file you meant to make. If the PNG is the wrong size, resize the JPG and convert again, rather than resizing the PNG and then wondering why it is both soft and enormous. If a form then demands JPG after you have edited, export once, at a high quality, from the edited PNG. That last JPG is a delivery copy. The PNG, or the earlier JPG if you never really needed to edit, remains the file you return to.
Related image tools
Frequently asked questions
Does converting a JPG to PNG improve the quality?
No. The PNG holds the pixels the JPG still has. Blur, blocks and texture that JPEG compression already discarded stay discarded. What you gain is a file that will not add another lossy save on top while you edit. It is not a route back to the camera original.
Why is the PNG so much larger than the JPG?
PNG stores the decoded picture losslessly, including noise and the block edges the JPG left behind. A photograph often grows several times, commonly somewhere around three to ten times, and sometimes outside that range. A flat graphic may grow less. The result panel shows the real size. Believe that, not a fixed ratio.
Does converting JPG to PNG make the background transparent?
No. A JPG has no transparent pixels, and this page does not cut a subject out. You get a solid PNG of the same width and height. There is no background-colour control here because there is nothing to fill. A cut-out has to be made afterwards in an editor.
When is a PNG copy of a JPG actually useful?
When you will crop, label or re-save and you want those later saves to stay lossless. When a design app, a print hand-off or a brief has asked for PNG by name. When you plan to add transparency later and you want a lossless file to do that work in. Not when you want a sharper photo, a smaller photo, or a normal web image.
Should I convert to WebP instead of PNG?
For a website that can show WebP, yes. WebP is a delivery format and is usually a much smaller download than a PNG of the same photograph. PNG is the editing or compatibility format. Use JPG to WebP when you are publishing. Stay with PNG when the next tool cannot open WebP or you need lossless re-saves.
Can I convert more than one JPG at a time?
No. The workspace takes one JPG, PNG or WebP at a time, up to 25 MB and 40 megapixels. There is no queue and no zip of several results. Run each file separately and keep every original.
Does the PNG still contain the photo's location and camera data?
The PNG is built from the visible pixels, so the JPG's EXIF block and any GPS tag are not copied into it. This page does not inspect the new file and it does not claim a verified metadata strip. Use the EXIF metadata remover if you need that check spelled out. A street sign or face that is visible in the picture is still visible.