Compress Image to 1 MB

Private: the search runs on your device, nothing is uploaded

Drop images here, or click to choose them As many as you like at once, each brought under the same limit. You can also paste a screenshot straight onto this page. Up to 25 MB each.

Must be under

Unit

Shrink pixels if needed

Type the size limit you have to meet, for example 100 KB, then drop an image in.

The limit is already set to 1 MB, so drop your photos in and they come back underneath it. At this size the search usually only has to move the quality a little, so the result keeps its full pixel dimensions and looks the same as the original on screen.

About the 1 MB limit

1 MB is the limit set by systems rather than by forms. Mail servers cap a message, publishing platforms cap an upload, a site's media library refuses anything larger, and a photo straight off a phone is 3 to 8 MB and falls foul of all of them. Nobody is asking for 1 MB because they want a smaller picture: they are asking because something downstream will not take a bigger one.

Which is why this is the comfortable one. Getting a full resolution photo under 1 MB generally means the quality setting moving from the low nineties into the seventies, and that is a change you will not see at normal viewing size. The pixel dimensions stay as they were, so the picture is still usable for a web page, a print at postcard size or a slide.

Two details are worth knowing when the destination is email. A mail limit applies to the whole message rather than to each file, and attachments are encoded on the way out in a form that adds about a third to their size, so ten one megabyte photos travel as roughly 14 MB. Compress the whole set here in one go, add up the sizes the list reports, and split the message in two if the total is close.

If the destination is a web page rather than an inbox, switch the format to WebP: it fits noticeably more picture into the same megabyte and every current browser reads it. If you only want a smaller file and have no particular number to hit, Compress Image gives you a quality slider and a live preview instead of a target.

How to compress an image to 1 MB

Drop your photos on the box, click to choose them, or paste one onto the page. The limit is already 1 MB.
Add as many as you like, up to 25 MB each. Every one is brought under the same limit and listed with its own figures.
Switch to WebP if the pictures are going on a website, or stay on JPEG for email and for anything that will be opened by other software.
Click any row in the list to move the big before and after preview onto that photo.
Press Download. One file comes back on its own, a set comes back as a ZIP.

Common questions about compressing to 1 MB

Is 1 MB small enough to email?

For one photo, comfortably. Bear in mind that a mail limit applies to the whole message, not to each attachment, and that attachments are encoded on the way out in a form that adds roughly a third to their size. So ten photos at 1 MB each arrive as a message of around 14 MB, not 10 MB. If you are close to a limit, compress the set here and send them in two messages rather than finding out at the other end.

How much quality is lost at 1 MB?

Very little that you can see. A full resolution photo from a modern phone is typically 3 to 8 MB, and bringing it to 1 MB usually only means the quality setting moving from the low nineties to somewhere in the seventies, which is not visible on a screen at normal viewing size. This is the one limit on this site where the honest answer is that the compressed file and the original look the same.

Does the photo go anywhere while it is compressed?

No. Everything happens in your browser, including each of the attempts the search makes on the way to the right quality. Nothing is uploaded, which also means there is no size cap imposed by anyone else's server and no queue: dropping thirty holiday photos in at once is the same operation as dropping one, just repeated.

JPEG or WebP at this size?

If the photo is going on a web page, WebP: it fits more picture into the same megabyte and every current browser reads it. If it is going into an email, a form or someone else's system, stay on JPEG, because WebP still gets refused by older software and by some upload validators. For converting a batch of images between formats without a size target, Convert Image is the simpler page.

Can I do a whole folder at once?

Yes. Select as many images as you like, up to 25 MB each, and every one of them is brought under 1 MB and listed with its own before and after figures. They download as a single ZIP. They are processed one after another rather than all together, deliberately: thirty full size photos decoded at the same time is how a phone browser runs out of memory and loses the lot.

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