Key Statistics
60-90% size reduction Compression rate
Process up to 20 images at once Batch processing
PNG, JPEG, WebP with quality control Formats supported
Compress Images Online — Free, Private, No Upload
Drop your images below to compress them up to 90% smaller while maintaining quality. All compression happens directly in your browser—files never leave your device. Supports PNG, JPEG, and WebP formats. Adjust quality settings, preview results, then download optimized images instantly. No signup required, no file limits, completely free.How Does Image Compress Compare?
We built Image Compress to be completely free and private. Here's how we stack up against popular alternatives:
| Feature | Image Compress Us | TinyPNG | Squoosh (Google) | iLoveIMG |
|---|---|---|---|---|
| Price | Free forever | $25/year | Free | $6/month |
| Privacy | 100% local | Cloud upload | 100% local | Cloud upload |
| Account Required | No | Optional | No | Optional |
| Usage Limits | Unlimited | 500 images/month (free) | 1 image at a time | 15 images/batch (free) |
| Watermarks | None | None | None | None |
| Works Offline | Yes | No | Yes | No |
What is Image Compress?
Image Compress is a free browser-based tool that reduces image file sizes without significant quality loss. Unlike cloud-based compressors that upload your photos to remote servers, this tool processes everything locally using JavaScript. Your images stay on your device throughout compression.
Perfect for optimizing website images, reducing email attachment sizes, or saving storage space.
How does Image Compress work?
- 01 Drag and drop images onto the upload area, or click to browse your files
- 02 Adjust the quality slider to balance file size vs image quality
- 03 Preview the compressed image and compare with the original
- 04 Click download to save your optimized image
- 05 Process multiple images in batch for faster workflow
Why use a browser-based tool?
- Privacy first: Images never leave your device or get uploaded to any server
- Speed: No upload/download wait times—compression is instant
- Security: No risk of your photos being stored or accessed by third parties
- Offline capable: Works without internet after page loads
- No limits: Compress as many images as you want, no daily quotas
Common Questions
How much can I reduce image file size?
Typically 60-90% reduction depending on the original image and quality settings. A 5MB photo can often be reduced to under 500KB while maintaining excellent visual quality.
Are my images uploaded to a server?
No. All compression happens entirely in your browser using JavaScript. Your images never leave your device. You can verify this by disconnecting from the internet after the page loads—the tool will still work.
What image formats are supported?
We support PNG, JPEG, and WebP formats. The tool automatically detects your image format and applies optimal compression settings.
Will compression reduce image quality?
You control the quality level. At 80% quality, most images look nearly identical to the original. The preview feature lets you compare before downloading.
Can I compress multiple images at once?
Yes. Drag and drop multiple images or select several files at once. Each image is processed individually and can be downloaded separately or as a batch.