Free image compressor with no size cap and no signup

Picture too big to attach or upload? Pick a quality, or type the size it has to fit under, and download it. Straight off an iPhone works too. No watermark, no account, no upgrade prompt. Nothing is uploaded, so there is no cap to hit.

Drop your picture here

or click to browse. iPhone photos, JPG, PNG, WebP and AVIF, with no size cap. Stays on your computer.

No cap on the file

There is no server bill to protect here, so the only limit is your own device, not a plan tier.

No signup, no watermark

No account, no trial, no upgrade prompt on the download. Ads pay for the site.

Nothing is uploaded

That is why there is no cap and no account. Turn your network off once it starts and it still finishes — or check any tool yourself.

Fits under the limit

Type a size in MB and quality drops only as far as it has to in order to fit under it.

How it works

  1. Pick a quality: High, Balanced, or Small.
  2. Optional: open the size limit and type the size the file has to fit under, in MB.
  3. Drop your picture, or click the box to choose a file.
  4. Download the result. The name ends with a short tag, like photo-8f2a1c.webp.

iPhone photos

A photo from an iPhone is a HEIC, and most sites and forms will not take one. Drop it here and it is read on your own device and saved as a WebP, which everything opens. The picture itself does not change: same width, same height, and one taken upright comes back upright.

Nothing extra is downloaded until you actually drop such a photo in, so the page stays as light as it was for everyone else.

Quality or a size limit

The three presets are about how much of the picture to keep. High barely touches it, Small makes the file as light as it can. That is enough most of the time, and the file lands wherever it lands.

A size limit is for when a form refuses anything over a number: 2 MB for an upload, 500 KB for a forum avatar. Type it in and the quality is walked down only as far as it has to go to get under it. If even the lowest usable quality cannot get there, you are told, rather than handed a ruined picture.

The pixel width and height never change. Cropping and resizing are a different job, and this tool does not do them.

Frequently asked questions

Is there a file size limit?

There is no fixed cap, because there is no upload. The practical limit is your device’s memory; a very large picture on a low-memory phone can fail.

Does it add a watermark or need an account?

No watermark, no account, no trial, and no upgrade prompt on the download. The site is free and paid for by ads.

Is my picture uploaded to a server?

No. The work happens on your own device. You can switch your network off after it starts and it will still finish.

Why does my PNG come back as a WebP?

A PNG saved again as a PNG barely gets smaller, so it would not be a compressor. WebP has a quality dial and still holds transparency, so a PNG is saved as WebP and see-through areas stay see-through. If you need the file to stay a PNG, use the image converter instead.

Can I drop an iPhone photo (HEIC) in?

Yes. It is read on your device and comes back as a WebP, because no browser can write a HEIC file back out. The picture is unchanged — same width, same height, and a photo taken upright stays upright. The result line tells you which format it was saved as.

Will it change the size of the picture on screen?

No. The width and height in pixels stay exactly as they were. Only the file gets smaller.

Which formats can I drop in?

iPhone photos (HEIC and HEIF), JPG, PNG, WebP and AVIF. JPG, WebP and AVIF come back in the same format; PNG and HEIC come back as WebP.

Guides

The size limits people keep hitting, explained, with the way around each one.

Other tools