Free photo compressor

Compress photos without visible quality loss, free and private.

Make photos lighter for email, upload forms and faster pages, at a quality you choose or under a size you set. It all happens in your browser: your photos are never uploaded, and there is no account and no limit.

Your photos stay on your device. Nothing is uploaded.

Compress by
Quality
Quality 82. Much lighter, with no difference you can see on a screen.
Longest edge
How photo compression works

A lighter file, the same photo to the eye.

Three steps, then what the quality number really does and which values are worth using.

  1. 01

    Add your photos

    Drop them on the tool or choose them from your computer or phone. One photo or a whole shoot.

  2. 02

    Choose a quality or a target size

    Pick one of three quality levels, or set a size each photo has to come in under. A longest edge is optional.

  3. 03

    Download

    See how much lighter each photo became, then download them one by one or all together as a ZIP file.

What JPEG quality changes

JPEG saves space by storing fine detail and color less exactly. The quality number sets how much is given up: at high values the loss hides in texture nobody can see, at low values it shows as blocks in skies and smudges around sharp edges. The pixel size stays the same; only the file gets lighter.

Values worth using

From 100 down to 90 a file often halves with no difference you can find. 80 to 90 is right for client delivery and for anything that may be printed. 70 to 80 suits sites, blogs and email. Under 60 the damage starts to show in gradients and skin, so it is rarely worth it for photographs.

When a target size helps

Use it when someone sets a limit: an upload form that takes 2 MB, a competition entry, a full mailbox. The tool tries several qualities and keeps the best one that fits. If a photo cannot fit without visible damage, lower the longest edge: fewer pixels save far more than a lower quality does.

Compress once, from the original

Every time a JPEG is saved again it loses a little more. Export from your editor at full quality, compress that copy once, and keep the original. Do not compress files meant for a print lab or a final delivery unless you were asked to.

Questions

Compression, answered.

More in the Capturely help center

Is this photo compressor really free?

Yes. There is no account, no limit on how many photos you compress, and no mark of ours on your photos. It is made by Capturely, a client gallery service for photographers, and costs nothing to use.

Are my photos uploaded anywhere?

No. The photos are compressed by your own browser, on your device. They are never sent to a server, and they are gone when you close the page. Only your last settings (quality, target size, longest edge) are remembered on this device.

Will I see a difference after compression?

At High and Balanced you should not, at normal viewing size on a screen. Small file gives up a little fine detail for a much lighter file, which is fine for email and web pages. The preview shows each finished photo, so you can check it before you download, and your originals are never changed.

How does the target size work?

Choose a limit such as 500 KB, 1 MB or 2 MB. The tool encodes each photo at several qualities between 92 and 40 and keeps the highest one that fits. It does not go under 40, where a photo starts to look damaged: if a photo still does not fit, the tool tells you, and setting a longest edge will get it there.

Which formats can I compress?

JPEG, PNG and WebP. A JPEG stays a JPEG and a WebP stays a WebP (Safari cannot save WebP, so there it becomes a JPEG). PNG has no quality setting, so a PNG is saved as a JPEG on a white background, which is far lighter for a photograph. Camera details such as EXIF data are not copied into the new file.

Why did one of my photos not get smaller?

It was already compressed as far as your setting goes, so saving it again would cost quality and gain nothing. The tool leaves such a photo alone and hands you the original back.

For client delivery

Compressing photos so they fit in an email?

With Capturely you do not attach files at all. Upload the shoot and send one link: your client opens the gallery on any phone, with no app and no account, and downloads the photos at full resolution, one at a time or the whole gallery as a zip.

The Free plan needs no card.