Will converting PNG to JPG reduce quality?
Yes — JPEG is lossy, meaning it discards some image data to achieve smaller file sizes. At Q80–85, the quality loss is typically invisible to the eye for photographs. For images with text, sharp lines, or flat colour areas, the degradation is more noticeable.
What quality setting should I use?
Q80 is the industry-standard sweet spot for web images — visually indistinguishable from the original for most photos while achieving 70–85% file size reduction. Use Q85–90 for print. Use Q60–70 only when file size is critical and the image will be viewed small.
What happens to transparent parts of my PNG?
JPEG has no transparency channel. Transparent pixels are filled with a solid colour before saving. This tool defaults to white. If your site has a dark background, change the fill colour to match — otherwise logos will appear to have a white rectangle around them.
Is PNG to JPG conversion reversible?
No. Lossy JPEG compression permanently discards pixel data. Converting JPG back to PNG produces a lossless copy of the already-compressed image, but the lost quality does not return. Always keep the original PNG if you may need it again.
When should I use WebP instead of JPG?
WebP offers 25–35% better compression than JPEG at equivalent quality and is supported by all modern browsers (Chrome, Firefox, Safari, Edge). Choose WebP when targeting modern web browsers. Use JPEG when compatibility with older software, email clients, or non-browser contexts is required.
How much smaller will my JPG be compared to the original PNG?
For photographic images, JPEG at Q80 is typically 60–85% smaller than the equivalent PNG. A 3 MB PNG photo often becomes 300–500 KB as JPEG. Flat-color graphics, screenshots, and illustrations compress less efficiently with JPEG — the reduction may be only 10–30% and quality may noticeably suffer.
Does PNG to JPG conversion change the image dimensions?
No — this converter preserves the original pixel dimensions (width × height). Only the file format and compression change. If you also need to resize the image, use the Image Resizer before or after conversion.
Can I convert multiple PNG files at once?
Yes — the tool supports bulk upload. Select or drag multiple .png files and all will be converted. Download them individually or use the bulk download option to get all converted files in a ZIP.
Is it safe to convert personal photos using this tool?
Yes — conversion runs entirely in your browser using the HTML5 Canvas API. Your images are never sent to any server. You can confirm this by checking your browser's Network tab during conversion — no upload requests are made.
What is the difference between .jpg and .jpeg file extensions?
.jpg and .jpeg are identical formats — the shorter extension was a legacy requirement from early Windows operating systems that limited extensions to 3 characters. Both contain JPEG-compressed image data. Modern software accepts both; this converter outputs .jpg files.
Should I convert screenshots from PNG to JPG?
Generally no. Screenshots contain sharp text and solid-color UI elements — exactly what JPEG compression handles poorly. JPEG introduces block artifacts around text edges that make screenshots less readable. Keep screenshots as PNG or WebP. Only convert screenshots to JPEG if a platform strictly requires it and text sharpness is not critical.