Convert JPEG images to lossless PNG format right in your browser — no quality loss, no watermarks, no sign-up. Your files stay on your device the entire time.
Last updated: July 14, 2026
A JPEG to PNG converter takes a compressed JPEG image and re-saves it in the PNG format, which uses lossless compression instead. JPEG throws away some image data every time it's saved, in exchange for a smaller file — that trade-off is exactly why photos sometimes look a little blocky or smudged around fine edges after a few rounds of editing and re-saving. PNG doesn't make that trade. It keeps every pixel exactly as it was handed to it, which is why it's the standard choice for logos, screenshots, UI graphics and anything else where sharp edges actually matter.
People usually reach for this kind of conversion right before they need to do something else with the image: drop it into a design file, layer it over another graphic, or print it at a larger size than it was originally meant for. JPEG is fine for the "just show it on a webpage" stage of an image's life. PNG earns its place once the image is about to be worked on again.
Everything on this page happens client-side, using your browser's own Canvas API. There's no upload step, no server processing your photo, and no copy of your file sitting on someone else's storage after you close the tab.
Converting a JPEG image to PNG with this tool takes three steps and usually finishes in under a second for a typical photo:
When you click convert, the browser loads your JPEG into a hidden <canvas> element, draws the full image onto it pixel-for-pixel, and then calls canvas.toBlob() to export that canvas as a new PNG file. It's the same underlying technique image editors have used for years — this page just wraps it in a simple upload-and-download flow so you don't need any software installed.
JPEG remains the most common format for photographs because it balances quality against file size reasonably well. The catch is that its compression is lossy — every save discards a bit more image data. Do that enough times, or start from an already low-quality JPEG, and you'll start to notice soft edges, faint blocky patterns, or odd color banding in areas that should be smooth.
PNG sidesteps that problem entirely. Because its compression is lossless, converting to PNG locks in your image exactly as it is right now — no further degradation, no matter how many times you open and re-save it afterward. It's also the only one of the two formats that supports transparency, which matters the moment you need a logo or icon that sits cleanly on top of another background.
| Aspect | JPEG | PNG |
|---|---|---|
| Compression type | Lossy — discards data each save | Lossless — keeps every pixel |
| Best suited for | Photos, casual web sharing | Graphics, logos, screenshots, edits |
| Transparency | Not supported | Fully supported |
| Typical file size | Smaller | Larger, especially for photos |
| Repeated editing | Degrades a little each time | No quality loss over time |
Neither format is objectively "better" — they're built for different jobs. If your PNG ends up larger than you'd like after converting a photo, our Image Compressor can bring the file size back down without dragging in JPEG's lossy artifacts.
This kind of conversion shows up across a lot of different workflows. A few of the more common ones:
If you're working through a batch of finished PNGs and eventually want them bundled into a single document, our Image to PDF tool can combine them afterward. And if you ever need to go the other direction — PNG back to a smaller JPEG for sharing — the PNG to JPEG converter handles that.
The tool is built around JPEG and JPG files specifically, but the upload field is deliberately loose about what it accepts — WEBP, BMP, GIF and even an existing PNG will all load into the preview and can be re-exported. Whatever goes in, a PNG comes out.
The output is always a standard 32-bit PNG with a full alpha channel available, matching the width and height of your original image exactly. Nothing gets resized, cropped, or re-oriented in the process.
Because the tool relies on the standard Canvas API, it works in current versions of Chrome, Firefox, Safari and Edge, on both desktop and mobile. Very large photos — the 40+ megapixel files some newer phone cameras produce — can take a little longer to process on older or lower-powered devices simply because the canvas has more pixels to redraw, but the tool will still get there.
Click the drop zone or drag and drop your JPG or JPEG file directly onto the page.
The tool re-encodes your image in the lossless PNG format — no quality degradation, no artifacts.
Save your pristine PNG image and use it anywhere — in designs, on websites, or in print.
No. The whole conversion runs inside your own browser tab using the Canvas API. Your file is read locally, drawn onto a canvas, and re-exported as PNG — it's never transmitted anywhere, which also means it still works with a spotty connection.
The tool is built around JPEG and JPG files, but the upload field will also accept most other common raster formats such as WEBP, BMP and GIF. Whatever you drop in, the output is always a PNG.
No, and it's worth being upfront about that. PNG's lossless compression stops you from losing any more detail going forward, but it can't restore detail that JPEG compression already threw away in the original file. Think of it as locking in what you've got, not restoring what's gone.
There's no artificial cap built into the tool — browsers can typically handle files well into the tens of megabytes without trouble. The practical limit is your device's memory, since very large images can slow the canvas down. The tool handles one image per conversion; run it again for additional files.
The PNG format itself supports an alpha channel, but a plain JPEG doesn't contain any transparency data to begin with — JPEG simply can't store it. So if your source photo has a solid background, the PNG will too. If you actually need to remove a background, our Background Remover tool is built for that.
No installs, no browser extensions, no account. Open the page, drop your file in, and download the result. That's the entire loop.
JPEG is great for photos you're sharing casually or publishing on the web where file size matters. PNG earns its place once you're about to edit the image further, layer it into a design, need transparency down the line, or simply don't want to lose any more quality to repeated compression.
It's free, full stop — no watermark stamped on your download, no daily quota, no premium tier hiding behind a paywall. Have more questions? Our full FAQ page covers the rest of the toolkit.