Image Compressor
100% Client-Side PrivacyAdjust JPG and WebP quality or re-encode PNG while preserving transparency. Compare the result before downloading. File size savings depend on the image.
How to Compress Images Online
Upload Image
Drag and drop your JPG, PNG, or WebP picture into the upload zone or click to select from your device.
Adjust Quality
For JPG or WebP, adjust quality and compare the preview. PNG uses lossless encoding, so the quality slider is disabled.
Download
Check the output size, then download. An already optimized image may not become smaller.
Why Compress Your Images?
Smaller images can make webpages and attachments faster to load. JPG and WebP compression trades some image detail for size, so compare the preview before saving. PNG keeps transparency and uses lossless encoding, which may not reduce its file size.
Key Features
- Zero Server Uploads: Your private images are never sent over the Internet. Everything runs locally in your web browser.
- Instant Visual Preview: Compare the original and compressed pictures side-by-side before downloading.
- Format Preservation: Supports modern WebP as well as standard JPEG and PNG formats.
- Completely Free: No limits, no watermarks, and no sign-up requirements.
Frequently Asked Questions
Yes, 100%. Our tool uses the HTML5 Canvas API in your web browser. The image is processed in your device's memory and is never uploaded to any remote server or cloud database.
Start around 75% for JPG or WebP, then compare the preview and file size. Lower settings can visibly reduce detail. PNG uses lossless encoding and does not have an adjustable quality level.