Image Compressor

Reduce JPG, PNG and WebP file size directly in your browser. Compare before & after, then download — your image never leaves your device.

Click to choose an image or drag & drop here

JPG, PNG or WebP — processed locally, never uploaded

100% private — compression runs in your browser only.

How to Compress an Image Online

  1. Choose your image — click the box above or drag and drop a JPG, PNG or WebP file. It compresses immediately with the default settings.
  2. Adjust the quality slider — the compressed preview and file size update automatically.
  3. Pick an output format — JPG for photos, WebP for the best size/quality ratio, PNG for lossless graphics.
  4. Download your smaller image.

Why Compress Images?

  • Faster websites: images are usually the heaviest part of a page. Smaller images mean faster loading and better Core Web Vitals.
  • Email & form limits: many services cap attachments at 1–10 MB. Compression gets you under the limit.
  • Storage: compressed photo libraries take a fraction of the space.
  • Social & messaging: smaller images send faster on slow connections.

Need a specific size in pixels instead? Use our Image Resizer, or turn photos into a document with Images to PDF.

Frequently Asked Questions

Are my images uploaded to a server?
No. Compression happens entirely in your browser using the HTML5 Canvas API. Your images never leave your device, making this tool safe for private photos and documents.
How much can I compress an image?
Typical photos compress by 50–90% at quality 70–80 with little visible difference. The exact savings depend on the original image's format and how much it was already compressed.
What quality setting should I use?
Quality 75–85 is the sweet spot for web use: large savings with virtually no visible loss. Use 60–70 for thumbnails, and 90+ when detail matters more than size.
Does compressing a PNG with transparency work?
Choose WebP or PNG as the output format to keep transparency. Converting to JPG replaces transparent areas with a white background because JPG doesn't support transparency.