Drop PNG files onto the area below — or click it to browse — and each one is converted to JPG right on your device. Nothing is uploaded anywhere, which also means there is no size limit beyond your computer’s memory. Adjust the quality slider and see the before/after file size for every image.
85% is visually lossless for most photos. Changing it re-converts all files.
Converted files will appear here with a size comparison.
How it works
PNG stores images losslessly, which is why screenshots and graphics saved as PNG can be surprisingly large. JPG compresses photographic content by discarding detail your eye barely notices; at 85% quality most photos shrink to a fraction of the PNG size with no visible difference. That default is a good starting point — drag the slider down for smaller files or up when quality matters more.
The conversion uses your browser’s Canvas API: the PNG is decoded, drawn onto a canvas, and re-encoded as JPEG. Because JPG has no transparency, any transparent areas in the PNG are flattened onto a white background — worth knowing before converting logos with transparent backgrounds.
Each file shows its original size, the converted size and the change in percent, so you can judge whether the trade-off is worth it. Screenshots with large flat areas sometimes compress worse as JPG than PNG — the numbers will tell you immediately.
Practical examples
Photos too large to email
A 8.4 MB PNG scan converted at 85% quality usually lands under 1 MB. Convert all attachments at once — drop them together and download each JPG.
Meeting an upload size limit
A job portal accepts images up to 2 MB and your PNG is 5 MB. Convert at 80–85% and check the new size next to the file — adjust the slider until it fits.
Faster-loading product photos
PNG photos exported from a phone or a design tool are heavy for a web shop. Converted to JPG at 85%, they typically drop 60–90% in size with no visible loss on product listings.
A screenshot with transparency
A PNG with a transparent background converts onto white. If you need the transparency preserved, keep the PNG or use WebP instead — see the FAQ about when not to convert.
Frequently asked questions
Are my images uploaded to a server?
No. The entire conversion runs in your browser using the Canvas API. You can disconnect from the internet after the page loads and keep converting — no image data ever leaves your device.
What happens to transparent areas of the PNG?
JPG has no transparency, so transparent pixels are flattened onto a white background. If transparency matters — logos, icons, overlays — keep the PNG or convert to WebP instead.
What quality setting should I use?
85% is the practical sweet spot for photos: large savings, no visible difference at normal viewing sizes. Go to 90–95% for images that will be edited again, and down to 70% when file size is critical and some softness is acceptable.
Why did my file get bigger after converting?
It happens with screenshots, diagrams and text-heavy graphics: PNG compresses flat colors extremely well, while JPG adds noise around sharp edges. The size comparison shows this immediately — for such images, keeping PNG is the right call.
Can I convert multiple images at once?
Yes — select or drop as many as you like; each is converted independently and gets its own download button. All of them re-encode automatically when you move the quality slider.
Is there a file size limit?
No fixed one. Because processing is local, the practical limit is your device’s memory — a phone may struggle with a 100-megapixel PNG that a desktop handles fine.
Does converting reduce the image dimensions?
No — width and height stay identical; only the encoding changes. A separate resize tool is on the roadmap for when you also need smaller dimensions.
Is JPG the same as JPEG?
Yes — the format is JPEG; “.jpg” survives from systems that allowed only three-letter extensions. This tool writes .jpg files, and every program that reads JPEG accepts them.
Will converting repeatedly degrade the image?
Each JPG re-encode discards a little more information, so avoid chains of edits saved as JPG. Convert once, at the end of your workflow, from the best source you have.
Why is only PNG accepted and not WebP or HEIC?
This page does one conversion well and its instructions are specific to PNG quirks like transparency. Converters for WebP and HEIC are separate entries on the roadmap — same engine, dedicated pages.
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