Convert PNG to JPG
Convert PNG to JPG online, free and 100% in your browser. No upload, no signup. All the work happens on your device, so files can be as large as it can handle.
How to convert an image
- Drop or pick your PNG file, or paste it with Ctrl/⌘+V.
- JPG is already selected as the target; tune the quality slider if you like (default 82).
- Convert, compare the before/after, and save, all on your device.
Why convert to this format?
PNG is a lossless format with an alpha channel, pixel-perfect for logos, screenshots and line art. JPEG is the universal lossy photo format, small and readable everywhere, but with no transparency.
OptImg runs the same high-quality engines desktop tools use, so you get desktop-grade JPG output at a sensible default (quality 82), adjustable at any time, without ever uploading your image.
Your PNG is decoded, re-encoded to JPG and handed straight back, ready to save, all in an instant on your device: no server sees a single byte, which is why there's no queue and files can be as large as your device can handle.
Frequently asked questions
- Is my PNG uploaded to a server?
- The PNG-to-JPG conversion runs at native speed entirely in your browser: nothing is uploaded, your file never leaves your device, there is no queue, and no size limit beyond your device's memory.
- What happens to transparency?
- JPG has no alpha channel, so any transparent areas are flattened onto a white background. If you need to keep transparency, convert to PNG, WebP or AVIF instead.
- Will converting PNG to JPG lose quality?
- JPG is lossy, tuned to a visually transparent default (quality 82) that you can raise or lower with the slider. If the conversion can't produce a smaller file than your original, we hand the original back instead.
- Is the PNG to JPG converter free?
- Yes: completely free, with no signup, no watermark and no cap on how many files you convert. There is nothing to install; it runs in your browser.