Run the photo through a free browser-based image compressor, which re-encodes it at a quality you choose and shows you the size saving before you download. If the picture is also far larger in pixels than it needs to be, resizing it down first shrinks it even more. Both steps happen on your device, so the photo is never uploaded.
Free online image compressor. Re-encode JPG and PNG photos at a quality you choose to shrink file size, and see how much you saved. Private.
Open Image Compressor → Free toolFree online image resizer. Change an image to exact pixel dimensions or by percentage, lock the aspect ratio, and download the result. Private.
Open Image Resizer →Email providers commonly reject large attachments, and a modern phone photo can be many megabytes because it is captured at very high resolution. The receiver's screen will never show most of those pixels. Two levers fix it: compressing re-encodes the image so it stores more efficiently at a chosen quality, and resizing reduces the pixel dimensions themselves, which shrinks the file dramatically.
Both tools produce a new downloaded file and leave your original photo untouched, so you lose nothing by shrinking a copy for email. Since the compression and resizing run inside the browser, personal photos never land on a server just to get smaller.
Yes, at a reasonable quality setting the difference is hard to see on screen while the file becomes much smaller.
No. Compression and resizing both run in your browser, so the picture never leaves your device.
No. You download a smaller copy and the original stays exactly as it was.