Crush Image - Free Online Image Compressor Tool

Shrink Images by 70%
Without Losing Quality

Free, private, and runs entirely in your browser. No uploads, no sign-ups, no limits.

How to Compress Images Online

1

Drop Your Images

Drag and drop, click to upload, or paste from your clipboard. Process multiple images at once.

2

Instant Compression

Your images are compressed locally in your browser. Nothing leaves your device.

3

Download & Go

Preview the quality, then download individually or grab them all as a ZIP file.

Why Use Our Free Image Compressor?

Most image compressors upload your files to their servers. We do things differently.

100% Private

Your images never leave your device. All compression happens in your browser using JavaScript. No server uploads, ever.

No Limits

Compress as many images as you want. No daily caps, no file size restrictions, no watermarks. It's completely free.

Lightning Fast

No waiting for uploads or downloads. Images compress instantly because everything runs locally on your machine.

Advanced Options

Set target file sizes, convert to WebP, resize dimensions, retain EXIF data, and compare before/after quality.

Supported Image Formats

Works with all the image formats you actually use.

JPG / JPEG
Photos & web images
PNG
Graphics & screenshots
WebP
Modern web format
HEIC
iPhone photos

HEIC files from iPhone are automatically converted to JPG during compression.

Image Compression Use Cases

Whether you're a developer or just cleaning up your photo library.

Faster websites — smaller images mean faster load times and better SEO
Email attachments — fit under those pesky file size limits
Social media — upload faster without quality loss
Storage cleanup — reclaim space on your phone or computer
Form submissions — meet upload requirements for applications
CMS uploads — WordPress, Shopify, and other platforms

Image Compression FAQ

Is this image compressor really free?

Yes, completely free with no hidden catches. No accounts, no subscriptions, no "premium" tier. It runs in your browser, so there are no server costs for us to pass on.

Are my images safe and private?

Your images never leave your device. Seriously. Everything runs locally in your browser using JavaScript. We couldn't see your images even if we wanted to.

What's the difference between lossy and lossless compression?

Lossless removes redundant data without affecting quality (like zipping a file). Lossy discards some visual information for much smaller files. Most photos can lose 30-50% of their data before you'd notice any difference.

Should I convert images to WebP format?

If you're optimizing images for the web, yes. WebP files are typically 25-35% smaller than equivalent JPEGs with the same visual quality. All modern browsers support WebP.

What does "Retain EXIF" mean?

EXIF data is metadata embedded in photos: camera settings, date taken, GPS location, etc. By default we strip it (smaller files, more privacy). Enable this option if you need to keep that information.

How does target file size compression work?

Need an image under 500KB for an email attachment? Set a target size and we'll automatically find the best quality that fits. No more guessing with the quality slider.