Compress image to 1 MB

Shrink any photo or image to 1 MB or less for email attachments and portals with a 1 MB limit. JPG, PNG, WebP and HEIC and more. Free, and most never leave your browser.

  • Mostly in your browser
  • Same format, smaller file
  • Batch & ZIP download
  • JPG
  • PNG
  • WebP
  • AVIF
  • GIF
  • HEIC
  • TIFF

How to compress an image to 1 MB

  1. 1

    Add your images

    Drop JPG, PNG, WebP or HEIC files onto the compressor above, paste them, or click to browse. Mixed formats are fine.

  2. 2

    1 MB is preset

    Every file is compressed to land at or just under 1 MB. You can switch to another size, or a percentage to reduce by.

  3. 3

    Compress

    Click Compress. Each image keeps its format and, for most formats, never leaves your browser.

  4. 4

    Check and download

    Check the new sizes, then download each file or all of them as a ZIP.

Which format keeps the most at 1 MB

The same 1 MB holds a different amount of detail depending on the format. Rough size of a detailed 3:2 photo at good quality:

FormatA photo fits roughlyGood to know
JPG≈ 3,040 × 2,030 px (6 MP)Accepted almost everywhere; the safe pick for forms
WebP≈ 3,460 × 2,310 px (8 MP)More detail than JPG, if the site accepts WebP
HEIC≈ 3,760 × 2,500 px (9 MP)iPhone photos; many forms don't accept it
AVIF≈ 3,870 × 2,580 px (10 MP)Most efficient, least widely accepted
PNG≈ 1,550 × 1,030 pxBest for logos, screenshots and signatures, not photos

Rough guide for detailed photos. Each file keeps its own format; convert first if the destination needs a specific one.

What 1 MB is typically for

  • Attaching several photos to one email
  • Websites and portals that cap uploads at 1 MB
  • Sharing high-quality photos quickly

Limits vary by site and change over time; check the exact number where you're uploading.

Photo won't fit in 1 MB?

Other image sizes

1 MB for a specific format

Tips and numbers for one format at 1 MB.

Or compress images by level and set any size or percentage yourself.

Compress image to 1 MB: frequently asked questions

Free, private and in your browser

Any image, 1 MB, done.

Drop the file, keep the preset, download the result. No sign-up, no watermark.

  • Most conversions never leave your device
  • Cloud files deleted automatically
  • No watermarks