Image Compressor
Shrink JPG, PNG, and WEBP file sizes without a visible drop in quality. Compare before and after, then download — all processed locally in your browser.
Drop images here, or click to browse
Supports JPG, PNG, and WEBP · Add multiple images at once
Why compress your images?
Smaller images mean faster-loading websites, quicker email attachments, and less storage used — without anyone noticing a difference in quality at a normal viewing size.
100% private
Compression happens in your browser using the Canvas API. Your images are never uploaded.
Bulk compression
Add several images at once and compress them all together, with a ZIP download.
Adjustable quality
Fine-tune the quality slider and see the estimated size before you download.
Format conversion
Optionally convert to JPG or WEBP while compressing for even smaller results.
Before / after sizes
See the original and compressed file size, plus the percentage saved, for every image.
No watermark
Your compressed images are clean, with no branding added.
How to compress an image
Upload your images
Drag and drop, or click to select one or more JPG, PNG, or WEBP files.
Set quality
Adjust the quality slider — lower values give smaller files.
Compress
Click "Compress Images" to process every file instantly.
Download
Save individual images or all of them together as a ZIP file.
Frequently asked questions
Will compressing reduce the visible quality of my image?
At the default quality setting, most images look nearly identical while being significantly smaller. You can fine-tune the quality slider and compare sizes before downloading.
Are my images uploaded to a server?
No. Compression happens locally in your browser using the Canvas API, so your images never leave your device.
Can I compress multiple images at once?
Yes. Add several images at once, and each one is compressed individually with its own before/after size, plus a ZIP download for all of them together.
What's the difference between compressing and resizing?
Compressing reduces file size mainly by adjusting image quality while keeping the same dimensions. Resizing changes the pixel dimensions. Use the Image Resizer tool if you need to change dimensions.