Converting JPG to PNG stops further generational loss from re-saving and gives you a lossless container with alpha channel support. The pixels you see in the JPG become exactly the pixels in the PNG (compression artifacts and all), but no new artifacts get added on future edits.
Drag & drop image files here, or browse
Drop your JPG files here
PNG won't undo the JPG's compression blocks, color banding, or quantization errors. It will typically produce a file 3–10× larger than the JPG because PNG preserves every pixel losslessly. For photographic content the size jump is significant.
PNG is supported by every browser, every image viewer, every OS since the late 1990s, and every design tool. There is effectively no environment where PNG doesn't work.
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.
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.
No. JPG compression artifacts are part of the pixel data. PNG preserves those pixels exactly; it doesn't restore detail the JPG discarded.
JPG achieves small file sizes through lossy compression of photographic content. PNG uses lossless DEFLATE compression, which is far less effective on photos. Expect 3–10× file size increase for typical photo content.
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.
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.
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.