Converting PNG to JPG swaps lossless compression for lossy, shrinking photographic content dramatically. A 3 MB PNG photo typically becomes a 300 KB JPG at quality 85 with no perceptible visual difference, a 10× reduction that matters for web delivery and storage.
Drag & drop image files here, or browse
Drop your PNG files here
JPG loses the alpha channel entirely; transparent PNG regions become opaque against a background color (usually white). Lossy compression introduces artifacts around sharp edges and text, which PNG preserved cleanly. For photos this is fine; for screenshots, logos, or UI captures it often isn't.
JPG is universally supported: every browser, every OS, every camera, every photo-sharing service. It's the single most compatible image format in existence.
PNG is a lossless image format designed to replace GIF. It uses DEFLATE compression, supports an 8-bit alpha channel for full transparency, and preserves every pixel exactly. PNG excels at images with sharp edges, large flat-color regions, text, UI screenshots, and anything you'll re-edit.
JPG (JPEG) is a 1992 lossy photo format that became the default way to store photographs on the web. It uses a discrete cosine transform plus quantization, tuned so that errors fall where human vision is least sensitive. No transparency, no animation, but excellent for photos at 70–90% quality.
No. JPG has no alpha channel. Transparent pixels become opaque, usually filled with white or a background color you choose.
Quality 85 is a good default. Most viewers cannot distinguish it from the PNG for photographic content. Quality 95 is nearly lossless but gives up most of the file-size benefit. Below 75, compression artifacts become noticeable.
PNG is a lossless image format designed to replace GIF. It uses DEFLATE compression, supports an 8-bit alpha channel for full transparency, and preserves every pixel exactly. PNG excels at images with sharp edges, large flat-color regions, text, UI screenshots, and anything you'll re-edit.
JPG (JPEG) is a 1992 lossy photo format that became the default way to store photographs on the web. It uses a discrete cosine transform plus quantization, tuned so that errors fall where human vision is least sensitive. No transparency, no animation, but excellent for photos at 70–90% quality.
Yes. The converter runs entirely in your browser using WebAssembly. Your images are never uploaded, never sent to a server, and never leave your device.
There's no hard limit, but because everything runs in your browser you're bounded by available memory. Very large images (over a few hundred megapixels) can hit browser memory limits. Process in smaller batches if you run into issues.