CleanorTools
Smaller files

Image Compressor

Details

How to use Image Compressor

What the tool does, how to run it, and what to expect from the result.

How to compress an image

To compress an image with this tool, add a JPG, PNG, or WebP photo, let it shrink, and download the smaller version. Because the compressor runs entirely in your browser, the file never leaves your device and there is no upload step or waiting on a server.

Most image-compression jobs start with friction: an upload that fails because the photo is too large, a page that stalls, or a file that is simply too heavy to email comfortably. The fix here is a single, predictable path that gets the image under the limit while keeping it usable.

  • Add a JPG, PNG, or WebP image
  • Let the tool compress and reduce the file size
  • Download the lighter version, ready to upload or share

Compression vs. quality: what actually matters

A good image compressor balances size against how the photo will be seen, on a phone screen, in a profile circle, inside an email, or in a small page preview. The goal is a file small enough for its destination that still keeps faces, text, and detail clear, so the picture never looks broken after you shrink it.

People rarely need a specific compression ratio. They need a result that looks right where it lands and loads fast. This tool aims for that practical balance instead of forcing you through a wall of technical settings.

  • Keep faces and text from becoming muddy
  • Make the export small enough for the destination
  • Avoid turning a decent image into something blurry

Is it private and free?

Yes. This image compressor is free and processes images locally in your browser, so nothing is uploaded to a server. That makes it a safe choice for personal photos, ID scans, product shots, and anything you would rather not send to a third party.

For everyday needs, profile photos, document images, and form uploads, browser-based compression is usually more than enough, with no account and no install required.

Tips

Getting a better result out of Image Compressor

Specific settings and thresholds, not general advice.

  • The order matters more than the settings: resize first, change format second, then compress. Doing it the other way round throws away most of the possible saving.
  • 80 to 85 is the useful quality band for JPEG and WebP on photographs. Above 90 you pay real bytes for invisible detail; below 70 the artefacts become obvious on skies and skin.
  • Format beats quality. Our own benchmark measured AVIF at 37% smaller than JPEG at matched quality, and up to 52% on photographs, which no slider can match.
  • Do not compress a screenshot as JPEG. Text and sharp edges smear into visible fringing, and PNG or WebP will be both smaller and cleaner on flat content.
  • Compress once, from the best source. Every lossy pass costs a little, and repeatedly re-saving the same JPG degrades it further each time.
Limits

What Image Compressor does not do

The honest boundary, so you do not lose time finding it yourself.

  • It does not resize. That is a separate tool, and a bigger lever.
  • It cannot recover quality an already-compressed image lost.
  • It does not remove artefacts or noise.
  • It handles a still image, not an animation.
Reference

Terms used on this page

Short, plain-language definitions for the formats and settings above.

Editing & toolsImage compressionImage compression shrinks a photo’s file size by removing redundant or less-visible data. Lossy compression (JPEG, WebP) drops fine detail for big savings; lossless compression (PNG) keeps every pixel but saves less. It is the fastest way to make images smaller for sharing, email, or the web.General
At a glance

Who Image Compressor is for

A quick way to understand who this helps, what it solves, and where it connects next.

Best fit

Anyone who needs a fast photo compressor to reduce image size before uploads, forms, profiles, support tickets, listings, and websites

Ideal for

Compressing a picture to reduce or shrink image size before upload without obvious quality loss

FAQ

Common questions

Short answers for the questions people usually have before trying a utility like this.

Is this image compressor free?

Yes. This image compressor is completely free to use, with no account, sign-up, or watermark.

Are my images uploaded to a server?

No. This tool compresses images entirely in your browser, so your files stay on your device and are never uploaded.

Which formats can I compress?

You can compress common image formats including JPG, PNG, and WebP directly in the browser.

Is compression the same as resizing?

Not exactly. Compression reduces file weight while resizing changes the pixel dimensions. Many workflows use both together to hit a target size.

Does it work on mobile?

Yes. This compressor runs in any modern mobile or desktop browser, so you can shrink photos directly from your phone with no app to install.

How do I compress an image without losing quality?

You cannot, with a lossy format: compression works by discarding data. What you can do is discard only what is invisible. For a photograph, 80 to 85 quality in JPEG or WebP is where almost nobody sees the difference.

What is the biggest thing I can do to shrink an image?

Resize it. File size scales with the pixel count, so halving the width quarters the pixels. Format is the second biggest lever, and the quality slider is the smallest.

Which format compresses best?

AVIF, by a wide margin. Our own benchmark measured it 37% smaller than JPEG at matched quality, and up to 52% on photographs. WebP sits between the two, and JPEG is the compatibility fallback.

Why does my compressed screenshot look bad?

Because it is probably a JPEG. JPEG is built for photographs and smears text and sharp edges into visible fringing. A screenshot belongs in PNG or WebP, which will be both smaller and cleaner.

Can I compress the same image twice?

You can, and each pass costs more quality for less size. Always go back to the original and compress once at the setting you actually want.

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Cleanor app

Do it all on your device

Cleanor puts these tools in one app: compress and convert images, video, and audio, work with PDFs, and scan text right on your device. Plus free up storage and clear inbox clutter with Email Cleaner. Start with a free trial.

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