JPG is a lossy format, so some quality reduction occurs during conversion. However, at high quality settings (85-100%), the difference is often negligible to the human eye while providing significant file size reduction.

You can convert as many files as you want, though very large batches may slow down your browser. For best performance, we recommend converting up to 20 files at a time.

For most purposes, 85-90% provides excellent quality with good file size reduction. Use 100% for maximum quality when file size isn’t a concern, or lower values (50-70%) for smaller file sizes when quality isn’t critical.

No, all conversion happens in your browser. Your images are never uploaded to any server, ensuring complete privacy and security.

While you can save a JPG as PNG, the quality lost during JPG conversion cannot be recovered. Always keep backups of your original PNG files if you might need them later.