How much can I reduce an image?

A typical phone photo (3–5 MB) usually drops to 300–900 KB at 80% quality with no difference you can see on screen. PNG screenshots shrink less unless you convert them to WebP or JPG.

Will my image lose quality?

JPG and WebP compression removes detail the eye barely notices. Between 75% and 85% quality the result looks identical on screen; below 60% you start to see artifacts around edges and text.

I need a file under a specific size. What should I do?

If a form requires, say, less than 200 KB, use “Compress to a target size” in the Spanish version of the site or lower the quality step by step here and check the size shown after each run.

Can I compress many images at once?

This tool works one image at a time so you can compare. For whole folders, use the batch tool “Compress multiple images”, which processes up to 200 files and downloads a ZIP.

Are my files uploaded to a server?

No. Everything is processed inside your browser and your files never leave your device. There is no upload, no queue and no temporary storage, so the tool keeps working even if you go offline after the page has loaded.

Yes. There is no sign-up, no watermark and no daily limit. The site is funded by a few unobtrusive ads around the tools, never inside your files.

Compress image

Drop an image, pick a quality level and download a lighter file: photos usually shrink by 60–80% with no visible difference. Compression runs in your browser, so nothing is uploaded.

Free, no sign-up and no uploads: processing happens in your browser · Updated September 18, 2026

Settings

Quality80%

Values between 70–85% give the best quality/size balance.

Faster websites and lighter emails

Images are usually the heaviest part of a web page or an email. Compressing them cuts load times and keeps you under attachment limits without changing how they look.

Related tools

Change the dimensions with Resize image, switch formats with Convert image or process a whole folder with Compress multiple images.

Related tools

Resize image

Change image dimensions by pixels or percentage.

Convert image format

Convert between JPG, PNG, WebP and AVIF instantly.

Compress multiple images

Compress up to 200 images at once and download them as a ZIP.

Crop image

Select and crop the exact area you need.

Frequently asked questions

How much can I reduce an image?: A typical phone photo (3–5 MB) usually drops to 300–900 KB at 80% quality with no difference you can see on screen. PNG screenshots shrink less unless you convert them to WebP or JPG.
Will my image lose quality?: JPG and WebP compression removes detail the eye barely notices. Between 75% and 85% quality the result looks identical on screen; below 60% you start to see artifacts around edges and text.
I need a file under a specific size. What should I do?: If a form requires, say, less than 200 KB, use “Compress to a target size” in the Spanish version of the site or lower the quality step by step here and check the size shown after each run.
Can I compress many images at once?: This tool works one image at a time so you can compare. For whole folders, use the batch tool “Compress multiple images”, which processes up to 200 files and downloads a ZIP.
Are my files uploaded to a server?: No. Everything is processed inside your browser and your files never leave your device. There is no upload, no queue and no temporary storage, so the tool keeps working even if you go offline after the page has loaded.
Is it really free?: Yes. There is no sign-up, no watermark and no daily limit. The site is funded by a few unobtrusive ads around the tools, never inside your files.