About Image Compressor
This compressor re-encodes your images with the browser's native encoder at the quality level you choose, and can optionally downscale them to a maximum width or height. Every file shows its original size, new size and the exact percentage saved, so you always know the trade-off before you download.
It is ideal for preparing photos for websites, email attachments, online forms with strict size limits and social media. Because compression happens locally, you can batch hundreds of images without waiting for uploads and without exposing private pictures to a third-party server.
How to use Image Compressor
- Add your images
Drag and drop one or many JPG, PNG or WebP files. Thumbnails and original sizes appear in a list ready to process.
- Set quality and size
Pick an output format and quality level, and optionally enter a maximum width. A live estimate helps you find the smallest file that still looks good.
- Compress and download
Click Compress, review the savings shown next to each file, then download individually or save everything with Download All.
Frequently Asked Questions
How much can this image compressor reduce file size?
Typical results are 40-80% smaller for photographs at 75-85% quality, and WebP or AVIF output can shrink files further still. The savings depend on the original format and resolution; the tool shows the exact number per file so you can adjust quality until the size is right.
Does compressing an image reduce its quality?
Lossy compression removes some visual data, but at 80% quality the difference is usually impossible to see on screen while the file becomes dramatically smaller. For graphics, screenshots and logos choose PNG or a high quality setting to keep edges crisp.
Are my images uploaded to a server?
No. The compressor uses the Canvas API inside your browser, so files never leave your device. That makes it safe for personal photos, scans and confidential documents, and it also means the tool keeps working with no queue even during peak traffic.
Which format should I choose for the web?
Use WebP for the best balance of quality and size on modern browsers, AVIF for maximum compression on photos, and JPEG when you need the widest compatibility. Keep PNG only for images that need transparency or perfectly sharp text.