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Image Compressor

Shrink JPG, PNG, and WebP images with a live quality slider. Compare before-and-after file sizes instantly and download the smaller version. All compression happens locally — your images never leave your browser.

Drag & drop an image here

or click to browse — JPG, PNG, WebP

Compress images and cut file size — securely in your browser

Our Image Compressor makes JPG, PNG, and WebP files dramatically smaller without sending a single byte to a server. It re-encodes your picture at a quality level you control, discarding the fine detail that the human eye barely registers while keeping the parts that matter looking crisp. Because everything runs on an in-browser canvas, even sensitive images stay private on your device throughout.

Large images are the number-one cause of slow-loading web pages, sluggish email attachments, and storage that fills up faster than expected. Compressing them fixes all three at once. A live before-and-after readout shows the original size, the compressed size, and the percentage saved, so you can dial in exactly the trade-off you want between file size and image quality before downloading.

The tool is built for real-world workflows. Web developers and bloggers use it to hit Core Web Vitals targets and speed up their sites, online sellers shrink product photos for faster catalogs, and everyday users squeeze pictures under the attachment limits of email and chat. Switching the output to WebP often halves the size again compared with JPG, and a lossless PNG mode is there when transparency and exact fidelity are non-negotiable.

Why use Image Compressor?

Real before/after comparison

See original size, compressed size, and percentage saved update live as you move the quality slider.

Private by design

Compression runs entirely in your browser, so your images are never uploaded, stored, or shared.

Multiple output formats

Export as JPG, WebP, or lossless PNG to match your quality, transparency, and compatibility needs.

Faster sites and smaller emails

Lighter images improve page speed, SEO, and Core Web Vitals, and slide easily under attachment limits.

How to use Image Compressor

  1. 1

    Upload your image

    Drag in or select a JPG, PNG, or WebP file. It is loaded locally and never leaves your device.

  2. 2

    Choose an output format

    Pick JPG or WebP for strong compression, or PNG when you need lossless quality and transparency.

  3. 3

    Adjust the quality slider

    Slide down to shrink the file further, or up for more detail. Around 70–80% suits most photos.

  4. 4

    Review savings and download

    Check the before/after size readout, then click Download to save the compressed image.

Common use cases

Speed up a website

Compress hero images, banners, and photos so pages load faster and score better on Core Web Vitals.

Email large photos

Reduce file size to fit multiple images under mail provider attachment limits without splitting them up.

Optimize an online store

Shrink product photos so category pages load quickly on mobile connections and reduce bounce rates.

Save storage and bandwidth

Compress archives of photos before backing them up to cloud storage or a limited-space device.

Features at a glance

Frequently asked questions

How does the image compressor reduce file size?

It re-encodes your image with a quality setting you control. Lowering the quality discards fine detail the eye rarely notices, which shrinks the file significantly. Converting to modern formats like WebP can also cut size further while keeping images looking sharp.

What quality setting should I use?

For most photos, a quality of 70–80% gives an excellent balance between small file size and visual clarity. Drop lower for thumbnails or previews where size matters most, and raise it toward 90–100% when you need near-original detail.

Can I compress PNG images?

Yes, though PNG is a lossless format so re-encoding only reduces size slightly. For photographs and screenshots that don't need transparency, converting to JPG or WebP usually produces much smaller files with barely noticeable quality loss.

Will compressing change the image dimensions?

No. Compression only reduces file size by adjusting quality and format — the pixel dimensions stay exactly the same. If you also need to change dimensions, use our Image Resizer alongside the compressor.

Is it safe to compress private or client images here?

Completely. All compression runs locally in your browser and nothing is uploaded to any server. Your original and compressed images stay on your device, making the tool suitable for confidential and commercial work.

Your privacy matters

Image Compressor runs entirely in your web browser. Your files, text, and data are never uploaded to any server, never stored, and never seen by us or any third party. This client-side architecture means you can safely process confidential business documents, personal records, and proprietary data without privacy concerns.

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