Convert JPG to PNG
Turn a .jpg photo into a lossless PNG — right in your browser, with a real re-encode via canvas, not a server upload.
Convert a JPG File to PNG
Drop a .jpg file below. Your browser decodes it, then it's re-encoded as a real PNG on a canvas — previewed here, ready to download.
Before you use this tool: PNG will not restore detail lost in the JPG or remove its background. The converted file is often larger. For a transparent background, remove the background in an editor first; this converter only changes the image format.
🔒 Nothing is uploaded — your file never leaves this deviceOn this page
Why convert JPG to PNG
Some tools, templates and upload forms specifically require PNG rather than JPG — design software that expects a transparency channel to be available, certain print or asset pipelines, or a form that only accepts PNG. Converting gives you a PNG file, though it's worth knowing upfront that it can't undo JPG's original compression (see the edge cases below).
Edge cases this tool handles
This doesn't undo JPG's original compression
The source JPG was already compressed when it was created, and that compression is permanent — converting it to PNG stores those same pixels losslessly from that point on, but doesn't recover detail the original JPG encoding discarded.
No transparency is added
A JPG never had an alpha channel to begin with, so the output PNG is fully opaque — converting to PNG doesn't create transparency where there wasn't any.
Larger file size
Expect the PNG to be noticeably larger than the source JPG, especially for photos — that's the tradeoff for PNG's lossless storage of every pixel from that point forward.
Convert JPG to PNG on Windows, Mac, iPhone and Android
Both formats are supported everywhere, so every platform has a built-in way:
- Windows: open the JPG in Paint (right-click → Open with → Paint), then File → Save as → PNG picture.
- Mac: open it in Preview, choose File → Export… and set Format to PNG. For many files, select them in Finder, right-click → Quick Actions → Convert Image → PNG.
- iPhone/iPad: the Shortcuts app's Convert Image action outputs PNG; or open this page in Safari and pick the photo.
- Android: gallery apps generally don't offer a save-as-PNG option, so this page in Chrome is the simplest route.
Want a transparent background? Remove it first, then save as PNG
The most common reason people convert JPG to PNG is to get a logo, signature or product shot without its white background. Changing the format alone never does that — the background is part of the JPG's pixels. Remove it first, then save as PNG, which is the format that can store the transparency:
- Windows 11 Paint: current versions have a Remove background button in the Image section of the toolbar. Click it, check the result, then File → Save as → PNG picture.
- Mac: recent macOS versions add Remove Background to Finder's right-click Quick Actions menu, which saves a transparent copy as PNG. In Preview, the Instant Alpha tool in the Markup toolbar removes a flat background color you click and drag over.
- iPhone/iPad (iOS 16+): in Photos, touch and hold the main subject until it lifts away, then choose Copy or Share — the lifted subject keeps a transparent background.
Batch conversion, keeping the PNG small, and sideways photos
Converting a whole folder
With ImageMagick installed, magick mogrify -format png *.jpg writes a PNG next to every JPG in the folder and leaves the originals alone. On a Mac, Finder's Convert Image quick action does the same for any number of selected files.
Shrinking the PNG afterwards
A PNG made from a photo is big by nature. A lossless optimizer such as oxipng (oxipng -o 4 photo.png) recompresses it without changing a single pixel, usually saving a modest amount. If size really matters and you don't need transparency, the honest answer is that JPG was the better format for that photo.
Photos that turn sideways
Phone cameras often save a JPG unrotated and add an orientation flag that tells viewers to turn it. Some converters copy the pixels without applying that flag, and the PNG comes out sideways. This tool doesn't have that problem: your browser applies the rotation before the image is drawn, so the PNG is stored the right way up.
Frequently asked questions
Does converting JPG to PNG upload my file anywhere?
No. The image is decoded and re-encoded entirely inside your browser using a canvas — the file never leaves your device or touches a server.
Will converting to PNG improve the image quality?
No — the source JPG's compression already happened and can't be reversed. Converting to PNG losslessly preserves the pixels exactly as they are from that point on, but doesn't recover detail the original JPG compression discarded.
Will the PNG have transparency?
No — a JPG file never has an alpha channel, so there's no transparency to carry over. The output PNG is fully opaque, just like the source.
Why is the PNG file so much bigger than the JPG?
PNG uses lossless compression, which simply can't shrink photographic detail as much as JPG's lossy compression does. That's the normal, expected tradeoff for a format that doesn't discard any image data.
How do I convert a JPG to PNG with a transparent background?
Converting alone won't remove the background, because it is part of the JPG's pixels. Remove it first, for example with the Remove background button in Windows 11 Paint, Remove Background in the Mac's Finder Quick Actions or Instant Alpha in Preview, or by lifting the subject in the iPhone Photos app, then save the result as PNG.
How do I convert JPG to PNG in Windows Paint?
Right-click the JPG, choose Open with > Paint, then use File > Save as > PNG picture and click Save. The PNG will look identical to the JPG; it won't recover any detail lost to JPG compression.
Will a PNG get past an upload form that rejects my JPG?
If the form only accepts PNG, yes, converting satisfies the format check. If the form rejected the JPG for being too large, converting will make it worse, because a PNG of a photo is usually much bigger. In that case, resize or recompress the JPG instead.
Last updated October 1, 2026.