Image Compressor
Compress multiple images at once to reduce file size while maintaining quality. Supports JPG, PNG, and WebP. All processing happens in your browser.
About Image Compressor
Images are usually the largest contributor to a webpage's total size, and unoptimized uploads can quickly turn a fast site into a slow one. This image compressor reduces the file size of JPG, PNG, and WebP images while keeping perceived quality intact, using browser-native compression so the original file never leaves your device. You can adjust the quality level interactively and see the resulting size before downloading.
Useful for web designers preparing images for production, content creators uploading to platforms that have file size limits, anyone emailing large image batches, and bloggers reducing page weight to improve Core Web Vitals. Because compression happens locally, you can safely process sensitive images — internal documents, screenshots of admin tools, draft creative work — without uploading them to a third-party service.
How to Use
Click the upload area to select one or more images (you can add more later).
Adjust the quality slider (lower = smaller file, less quality).
Optionally set a max width to resize images.
Choose the output format (JPEG, PNG, or WebP).
Click 'Compress' then download individually or as a ZIP.
Frequently Asked Questions
Which format gives the smallest file size?
WebP generally produces the smallest files, followed by JPEG. PNG is best for images with transparency or sharp edges (logos, screenshots) but produces larger files for photos.
Does compression reduce image quality?
JPEG and WebP use lossy compression — lower quality settings will reduce sharpness. At 70-85% quality, the difference is usually imperceptible. PNG compression is lossless.
Can I download all images at once?
Yes! When you compress multiple images, a 'Download ZIP' button appears that packages all compressed images into a single .zip file for easy downloading.
Is my image uploaded to any server?
No. All compression happens entirely in your browser using the HTML5 Canvas API. Your images never leave your device.
How to Compress Images Online Without Losing Quality (Free Tool)
Bloated image files slow down your website, eat up cloud storage, and clog email inboxes. Learn how to compress images smartly — reducing size up to 80% while keeping them sharp.
Read the full guide