Compress Image
Free online image compressor — reduce file size by up to 80% while keeping visual quality. No upload to server.
Add the images you want to compress
Compression Results (Total: 0 files)
How to Use Compress Image
- Select Files: Upload image files
- Auto Compress: Compresses automatically on upload
- Check Results: See how much size was saved
- Download: Get compressed files
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Frequently Asked Questions
Will image quality get worse after compression?
It depends on the compression method. Lossy compression (JPG) can significantly reduce file size but may introduce minor quality loss. Lossless compression (PNG) removes only redundant data with no quality change. The iTool image compressor minimizes quality loss while maximizing file size reduction.
How much smaller will my photos get?
On average 40–80%, depending on the image type and compression settings. High-resolution smartphone photos benefit the most — a 10 MB photo can often be reduced to 1–2 MB.
Can I compress JPG, PNG, and WebP files?
Yes, JPG (JPEG), PNG, and WebP are all supported. An optimized compression method is applied for each format.
Can I compress multiple images at once?
Yes, you can drag and drop or select multiple images for batch compression. Each compressed file can then be downloaded individually.
Is the original file preserved?
Yes, the original file remains untouched. iTool processes everything locally in your browser and never uploads files to a server. Only the compressed result is available for download.
Can I adjust the compression quality myself?
No settings are needed. The best quality is applied automatically. JPG and WebP are compressed at around 80%, the sweet spot between quality and size, and PNG is compressed losslessly. In most cases this gives the right result, so you can download right away.
Which file formats are supported?
JPG, PNG, WEBP, HEIC, GIF, BMP, TIFF, AVIF are supported. Up to 50MB per file and 20 files at a time. Everything runs in your browser, so files are never uploaded to a server.
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