What is a PNG file?
PNG is a lossless format designed for the web. Every pixel is preserved exactly, and its alpha channel supports smooth, variable transparency — which is why logos, icons, and UI screenshots are almost always PNGs. The tradeoff is file size: photographs saved as PNG can be several times larger than an equivalent JPG.
In short, PNG is lossless quality with full transparency. It is best for logos, icons, screenshots with text, diagrams, and any image that needs a transparent background. Its main limitations are large file sizes for photographic content and no animation support.
Why convert PNG to JPG?
JPEG has been the default format for photographs since 1992. It uses lossy compression tuned for natural images, which lets it shrink photos to a fraction of their raw size while keeping them visually convincing. Virtually every camera, phone, browser, and app on the planet can open a JPG.
Converting from PNG to JPG makes sense when you need photographs, screenshots of photos, email attachments, and anywhere maximum compatibility matters more than perfect fidelity. JPG is opened by every browser, OS, and image application ever made.
Note that JPG does not support transparency: any transparent areas in your PNG will be filled with a white background during conversion.
JPG uses lossy compression, so use the quality slider to balance file size against fidelity — 80–90% is visually indistinguishable from the original for most images.
How to convert PNG to JPG
Drag and drop one or more PNG files into the box above (or click to browse). Adjust the quality slider if you want smaller files or higher fidelity, then press Convert. Each file is decoded and re-encoded as JPG on your own device in a second or two, and you can download results individually or grab everything as a ZIP.
Unlike most online converters, FileLark never uploads your files to a server. The conversion runs entirely inside your browser using modern web technology, which means it works offline once the page has loaded, there are no file size queues or daily upload limits, and your images can never be stored, scanned, or leaked — they simply never leave your device.