Compress Image to 1MB (Free, No Upload)
Bring big photos under 1 MB for email attachments. Everything runs on your device; files are never uploaded.
Drop images here
JPG, PNG, or WebP. Up to 20 at a time works well.
Files are processed on your device. Nothing is uploaded.
A limit about volume, not quality
Almost no single photo needs to be under 1 MB; the target earns its keep in bulk. Email providers cap messages somewhere around 20 to 25 MB, so a batch of 4 MB phone originals fills an email after five attachments. Cloud drives meter every gigabyte, and a phone that shoots large files fills its backup plan fast. Compressing to 1 MB each is the difference between sending a vacation in one email and sending it in four.
Built for the batch
Drop the whole set at once: the tool accepts many files and works through them one by one, finding the best quality for each under the 1 MB line. Per image, it binary-searches the quality scale from 30% to 95% and keeps the highest value that fits. Because a megabyte is generous, the search nearly always concludes at the top of the range with the original dimensions intact, and the rare oversized panorama gets one 15% size step. Since the encoding runs on your own machine, twenty photos finish in seconds and your pictures stay private, never touching a server.
What to expect across your photo library
Ordinary phone photos shrink by 70 to 80% and remain, for practical purposes, indistinguishable from the originals. Faces, landscapes, food, documents: all keep their sharpness at full screen. Screenshots barely change, because most are already below 1 MB; the tool just re-encodes them and moves on. Graphics and logos likewise pass through untouched in quality. The only sacrifice anywhere in the batch is invisible detail, the sort that only mattered if you intended to print poster-sized.
Getting iPhone photos into the batch
Recent iPhones save photos as HEIC, which browsers can’t decode, so this tool can’t read them directly. Run those through the HEIC to JPG converter first, then feed the JPGs in here; the two-step round trip still finishes faster than emailing yourself the originals. If you’d rather control quality directly and watch the size respond, the standard image compressor exposes the slider this page keeps hidden, and at its default 80% setting most photos land near the same place anyway. Keep the originals in your library either way: compress copies for sending, not the only version you own.
Frequently asked questions
Does 1 MB lose any visible quality?
Almost never. A megabyte is a roomy budget for a single photo, so the quality search ends up near its 95% ceiling and dimensions are left alone. The exception is a very high resolution image packed with fine detail, which may take one gentle downscale, still leaving it larger than most screens.
How many photos can I send in one email after this?
Most mail providers cap a message around 20 to 25 MB. At under 1 MB each, that's room for twenty or more photos plus the message itself, where the originals would have maxed out the email at five or six.
Why is my image still too big?
Check what you actually attached. A common slip is sending the original from your photo library instead of the compressed copy from your downloads folder. The file this tool produces is guaranteed under 1 MB; its name ends in .jpg or .webp depending on the format you chose.