JPG Compressor

How do I compress a JPG to under 100 KB?

Upload your JPG, then lower the quality slider until the estimated file size falls below 100 KB. Because JPEG compression is lossy, some fine detail is traded for smaller size — try a quality setting around 60–80 percent as a starting point, then compare the preview to the original.

Does compressing a JPG reduce image quality?

Yes — JPEG uses lossy compression, so some image data is discarded to achieve smaller file sizes. At higher quality settings the difference is barely visible, but aggressive compression produces blocky artifacts. The goal is finding the lowest quality setting where the image still looks acceptable for your use case.

How do I reduce JPG file size for email attachments?

Upload your photo and pull the quality slider down until the file size fits your email limit — most providers cap attachments at 10–25 MB. For heavier compression, quality settings of 60–75 typically produce files under 500 KB that still look sharp in email clients.

Can I compress a JPEG without losing too much quality?

Yes. Keep the quality slider at 75–85 percent to retain most visible detail while still cutting file size by half or more. The lossy trade-off is most noticeable in sky gradients and skin tones, so zoom into those areas after compressing to check the result.

Is it safe to compress photos in an online tool?

With Image Machine, yes — the compression runs entirely inside your browser using local processing; your photos are never sent to a remote server. That means private, personal, or sensitive images stay on your device throughout the process, with no account or sign-up required.