Compress & optimise

Compress an image to 1 MB

Phone photos are three to five megabytes, and upload forms often stop at one. Add the photo and get the best version that fits under 1 MB.

  • Runs in your browser
  • Nothing is uploaded
  • No sign-up
  • Batch up to 20 images

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JPG · PNG · WebP · GIF · BMP · AVIF · SVG  ·  up to 50 MB each · up to 20 files

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How to use the 1 MB image compressor

Add a photo and download it under 1 MB: the limit is preset and the format is kept. A 12-megapixel phone photo usually fits at its original pixel size with a medium quality setting, so nothing is cropped or shrunk unless it has to be.

  1. Add the photoStraight from your phone or camera is fine.
  2. Let it searchThe target is preset to 1 MB. Large photos take a few seconds.
  3. DownloadThe file is just under 1 MB, usually at its original pixel size.

About this tool

A 1 MB limit is what you meet on job portals, help-desk forms, forums and some mail systems when you attach a photo straight from a phone. The photo does not have to lose its size in pixels to get there. In most cases a lower quality setting is enough, and at normal viewing size the difference is hard to spot.

This page has the target set to 1 MB and keeps the format you give it. It tries encoder qualities until it finds the highest one that fits, and falls back to scaling the picture down only if none does.

What you get

  • Target preset to 1 MB
  • Usually keeps the photo's original pixel dimensions
  • Keeps the original format, or converts to JPG, WebP or PNG
  • Change the number to 2 MB or any other limit
  • Batch up to 20 photos and download a ZIP

When to use the 1 MB image compressor

Job portals and application uploads

CV photos, certificates and portfolio images are commonly limited to 1 MB per file.

Help-desk and warranty forms

A photo of a faulty product or a receipt has to pass the form's attachment limit before anyone will look at it.

Forums and community sites

Many boards refuse image attachments over a megabyte to save storage.

Emailing a set of photos

Ten photos at 1 MB each fit in one message; ten originals from a phone do not.

How it works

A 12-megapixel photo saved by a phone is typically three to five megabytes, because phones store pictures at a very high quality setting. Bringing it to 1 MB leaves a little under 0.09 bytes for each pixel. A JPG can describe a photo at that rate with a medium quality setting, so the tool usually reaches the limit without changing the dimensions at all.

Scaling is the fallback, not the first move. If even the lowest quality setting leaves the file over 1 MB, which happens with very high-resolution photos, the picture is reduced by a factor worked out from how far over it was, and the quality search runs again on the smaller version. The scale and quality that were finally used are both shown with the result.

Common problems and how to fix them

Nothing happened after I added a huge photo
Photos over about 24 megapixels are not processed automatically, to keep the page responsive. Press "Apply changes" to start.
The file shows as about 975 KB, not 1 MB
That is deliberate. The limit is counted as 1,000,000 bytes, not 1,048,576, because upload forms use both definitions of a megabyte and a file under the smaller one passes either. Windows measures in units of 1024, so it reports the same file as roughly 975 KB.
Fine detail looks softer than the original
That is the cost of the lower quality setting. To keep more detail, resize the photo to about 3000 pixels wide first; fewer pixels then share the same megabyte.
The photo's location and date are gone
Re-saving an image removes its EXIF metadata, including GPS position and camera details. Keep the original if you need them.

Frequently asked questions

How do I compress an image to 1 MB?

Add it above. The target is preset to 1 MB, so the highest quality that fits is found automatically and the download is just under the limit.

How do I reduce a 5 MB photo to 1 MB?

Add it above. The quality is lowered until the file fits, which for a 12-megapixel photo usually means a medium quality setting at the original dimensions. If you would rather keep a higher quality, resize the photo to about 3000 pixels wide first.

Will I notice the difference at 1 MB?

Rarely at normal viewing size. Zoomed in, fine texture such as hair, grass and fabric looks softer than in the original. If you plan to print large or crop in later, keep the original file as well.

Can I set a different size, such as 2 MB?

Yes. Change the number in the Target file size box, or switch the unit between KB and MB. The Image File Size Reducer is the same tool without a preset.

How many megapixels fit in 1 MB?

About 3.7 megapixels at high quality, which is roughly 2200 × 1700, and around 12 megapixels at medium quality. Past that the picture needs heavy compression or a smaller pixel size.

Does compressing to 1 MB remove EXIF data?

Yes. The photo is re-encoded, which drops the metadata stored in the original, such as the capture date, camera model and GPS position.

Can I compress several photos to 1 MB at once?

Yes. Add up to 20 photos and press "Process all images". Each is fitted to the limit separately and the set downloads as a ZIP.

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