🔄 Format Convert

JPEG uses lossy compression and is best for photographs — it produces small file sizes but discards some image data. PNG uses lossless compression and supports transparency, making it ideal for graphics, logos, and screenshots. WEBP is a modern format that offers both lossy and lossless modes, typically producing files 25–35% smaller than equivalent JPEG or PNG files.

Convert PNG to JPEG when you have a photograph saved as PNG and want to reduce the file size significantly, and when transparency is not needed. Converting a photographic PNG to JPEG at 80% quality typically reduces file size by 60–80%. Avoid converting graphics with text or sharp edges to JPEG as lossy compression creates visible artifacts around them.

Converting to JPEG or lossy WEBP will lose some quality because these are lossy formats — each conversion discards image data that cannot be recovered. Converting between two lossless formats (e.g., PNG to lossless WEBP) preserves all data. Every time you re-save a JPEG, quality degrades slightly, so always work from the highest quality original.

No. All format conversion is performed in your browser using the HTML5 Canvas API. Your image files never leave your device, so your photos and documents remain completely private regardless of their content.

Yes. The batch converter accepts multiple files simultaneously — drag and drop several files or select them via the file picker. All files are processed locally in your browser in parallel and made available for download. The processing speed depends on the size of the images and your device's CPU.