JustPicTools
All image tools

Compress images · 1 MB

Compress JPG, PNG and WebP to 1 MB. Choose an output format, compare the result and download files that meet your size limit.

Processed on your device Free. No account needed.
ZIP: 20 MB; JPG, PNG and WebP. Up to 20 images / 80 MB expanded. Encrypted and nested ZIPs are unsupported.
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Drop your images here

or select files from your device

JPG, PNG, WebP · 20 MB and 12 megapixels per image
Up to 20 images · 80 MB per batch

Nothing is uploaded. Files stay in this tab and are cleared when you leave.

Choose size and output format

Choose your size and format. For a strict size limit, we check the actual file size. The output limit is 1,000,000 bytes per file. Check the exported file size; a result that exceeds the target is not successful.

Compress images · 1 MB — Check, then download

You’ll see a warning if your settings can’t meet the limit. Raise the limit or allow smaller dimensions. Files that exceed the limit never count as successful results. Your originals stay untouched.

A simple path to the right image

01

Start with your original

Choose your photos or try the sample. Your files stay on your device.

02

Make it your own

Choose your size and format. For a strict size limit, we check the actual file size.

03

Check, then download

Compare both versions and inspect at 100%. Download one result or the whole batch.

A few useful details

Which matters more: pixels or file size?+

They measure different things. Pixels describe dimensions; KB and MB describe stored bytes. A form may require both, so check both limits.

Can I compress a scan without making text unreadable?+

Start with the original and inspect small text at full size. A strict size target may require a tradeoff; do not use a result you cannot read.

Will my image keep its quality?+

Lossy compression changes pixels. We preserve dimensions where possible, keep a quality floor and only shrink when you allow it. Compare the result before using it.

What if the target is too small?+

You’ll see a warning if your settings can’t meet the limit. Raise the limit or allow smaller dimensions. Files that exceed the limit never count as successful results.

Are my files uploaded?+

Non-AI tools process files locally in your browser without uploading them or requiring an account. AI tools use remote processing and are clearly labeled. Files are uploaded only after you explicitly confirm; local tools never switch to cloud processing automatically.