Convert PNG to JPG Online
Convert a PNG image to JPG to get a much smaller file. Transparent areas become white by default — toggle that off if you prefer a black background. All processing is local.
Upload an image
Drop an image here, or click to browse
JPG, PNG, WebP · Max 50 MB per file
Your image stays on your device. This tool runs entirely in your browser. Your file is never uploaded to our server.
How do you convert a PNG to JPG?
Converting a PNG to JPG here is a three-step loop: drop the file, decide how to handle transparency, and download. The tool decodes your PNG and re-encodes it as a JPG, and because the two formats are preselected there is no picker to adjust. JPG cannot store transparency, so the page fills any transparent area with white by default, with a switch to turn the fill off, and the whole job runs in your browser through the Canvas API. The payoff is size: a 2.5 MB PNG photo typically comes out as a 300 to 500 KB JPG, roughly 80 to 90 percent lighter.
- 1Drop or select a PNG. Files up to 50 MB are accepted.
- 2Check the transparency setting. White fill is on by default; turn it off only if you want the transparent area kept as-is.
- 3Adjust the quality slider if you want a smaller or sharper file.
- 4Download the JPG. Your original PNG is never modified.
How much smaller will the file get?
The saving depends on what is in the PNG. Photos compress dramatically because JPG throws away detail the eye does not miss; a 4 MB photo often lands at 400 to 600 KB, and the result looks the same at normal viewing sizes. Screenshots and flat graphics shrink less, because PNG already compresses those well and JPG adds artifacts around text and edges. Check the preview on the page to see the exact trade-off for your specific image before downloading.
- Photos and gradients shrink the most, commonly 80 to 90 percent.
- Screenshots with large flat areas shrink moderately, often 40 to 60 percent.
- Images full of text or hard edges shrink the least and show JPG artifacts soonest.
Common use cases for PNG to JPG conversion
Website photos and hero images
A full-width hero PNG exported from a design tool often weighs 3 MB or more. Converted to JPG at quality 80 percent the same image drops to 500 KB, loads in under a second on a phone, and directly improves the Largest Contentful Paint metric that Google ranks pages on.
Email and messaging
Sending a PNG screenshot over email is heavier than it needs to be. A 1920x1080 capture at 2.4 MB becomes a 700 KB JPG and still reads perfectly on a laptop screen, which matters when a mail server or chat client caps attachments.
Product photos for online marketplaces
Marketplaces such as eBay and Etsy throttle and downscale listing photos aggressively. A 2400x2400 product PNG at 4.5 MB converted to JPG at quality 85 percent stays around 600 KB, uploads faster, and is less likely to be re-sampled by the platform.
Scanned documents and receipts
A flatbed scan saved as PNG can reach 8 MB for a single page. The same page as a JPG at quality 85 percent typically lands under 1 MB, which is plenty for expense tools and document archives that only need the text to be legible.
What happens to transparent areas?
JPG has no alpha channel, so transparent pixels must become some color. By default this page fills transparent areas with white, which is what most people want for a photo, a chart, or a product shot placed on a light background. Turn the fill off and the transparent region keeps its original pixel values, though those pixels will render as black in many viewers. If you need the transparency to survive, stay with PNG or convert to WebP instead, since both keep the alpha channel.
When should you keep the PNG instead?
- Keep the PNG for logos, icons, and text-heavy graphics where JPG artifacts would show.
- Keep the PNG when transparency is required, since JPG cannot store it.
- Convert to JPG for photos and gradients where the size saving outweighs the detail JPG discards.
Why convert in the browser?
Every image processed on this page is handled by the Canvas API inside your browser. Nothing is uploaded, no account is required, and there is no queue. That makes the tool a sensible choice for receipts, medical or legal scans, and client assets you would rather not send to a third-party service, and it keeps the whole conversion instant: processing starts the moment the file is selected.
Frequently asked questions
Are my images uploaded to a server?
No. Everything runs locally in your browser with the Canvas API, so the file never leaves your device. There is no upload step, no account, and no processing queue.
How much smaller will my JPG be than the PNG?
For photos, a JPG is typically 80 to 90 percent smaller than the PNG. Screenshots with flat color may only shrink 40 to 60 percent, and the page shows the exact result for your image before you download.
Will converting PNG to JPG lose quality?
Yes, and that is the point of the format. JPG is lossy, so some detail is discarded to shrink the file. At quality 80 to 90 percent the difference is usually invisible to the eye.
What happens to the transparent background of my PNG?
It is filled with white by default, which suits most photos and charts. You can turn the fill off, but transparent areas then render as black in many viewers. Keep transparency by converting to WebP or staying with PNG.
Can I control how small the JPG gets?
Yes. The quality slider lets you trade size against detail. Lower settings produce smaller files with more visible artifacts, so check the preview and stop at the lowest setting that still looks right.
Is there a file size limit?
Input files are limited to 50 MB. The ceiling exists because the tool decodes the full image into memory in your browser, and anything much larger makes the page sluggish. Most PNGs are far below the limit.
Does the original PNG get changed?
No. The tool always writes a new JPG and leaves your source file untouched on your device. You can run the conversion as many times as you like without affecting the original.