Compress Image Online
To compress an image, add your photos, choose the quality and press Compress. JPG, WebP and AVIF are compressed in their own format; still PNG and GIF are converted to WebP (an animated GIF stays a GIF), and BMP to JPG, because those formats cannot be made much smaller without switching. You can also limit the longest side to shrink the file further. Before and after sizes are shown, and everything happens in your browser, so your photos are never uploaded.
- Free, no sign-up
- Your file never leaves your device
- Up to 50 MB per file
The selected format has no quality setting.
Your file never leaves your device; images are processed in your browser. EXIF and location data are not added to the output.
How to reduce the file size of an image
Add your images
Drag the photos and images you want to shrink; batch processing is supported.
Set the quality
The quality slider starts at 75%. Choose the balance between file size and image quality yourself, and optionally limit the longest side.
Compress and download
Press “Compress”. Before and after file sizes are shown, and you can download the results one by one or as a ZIP.
What is preserved?
Kept
- The pixel dimensions, unless you limit the longest side
- Colors (adapted to sRGB) and the correct photo orientation
- Every frame and display time of an animated GIF, which stays a GIF
Changed
- The compression level: fine detail decreases as the quality goes down
- Still PNG and GIF files become WebP, and BMP files become JPG, unless you pick another output format
- PNG output can optionally be optimized further for a smaller file; the picture stays the same, but saving takes longer
Not carried over
- EXIF, location and camera data: left out of the output for privacy
When to use it
E-mail attachments and upload limits
Application portals and e-mail services often cap attachments. Compressing photos to 70–80% quality usually keeps them looking the same while making them several times smaller.
Faster websites
Lighter images load faster and cost less bandwidth. Compress product photos, banners and blog images before you publish them.
Free up storage
Compress a batch of photos at once and download them as a ZIP, keeping the originals if you want them.
Limitations to know
- Compression is lossy for JPG, WebP and AVIF: very low quality shows blocks and softened detail.
- Some files cannot get smaller; an already heavily compressed JPG may even grow when it is re-encoded at a high quality.
- Up to 50 MB per file and 50 files at a time; animated GIFs stay GIFs and keep their frames, while animated WebP and AVIF files are reduced to their first frame.
- On iPhone and iPad, images above roughly 16 megapixels may not be processed because of a browser limit.
Frequently asked questions
What quality should I choose to compress an image?
For photographs, 70–85% usually looks the same on screen while cutting the size sharply. Go lower only if size matters more than detail, and compare the result before using it.
Why did my file get bigger?
Re-encoding an image that was already compressed, or choosing a very high quality, can produce a larger file. Lower the quality or limit the longest side.
Can I compress a PNG?
PNG is lossless, so its size cannot be tuned with a quality value. Compressing a PNG here converts it to WebP, which keeps transparency and is usually much smaller; pick another output format if you prefer.
Do compressed images lose their EXIF data?
Yes. EXIF, camera and location data are not written to the output, which also helps your privacy.
Is there a limit on the number of files?
You can add up to 50 files at a time, 50 MB each.
Is this tool free?
Yes, completely free. There is no account, subscription or watermark.
Are my files uploaded anywhere?
No. Images are processed in your browser and never leave your device. EXIF and location data are not added to the output.
Can I process several images at once?
Yes. You can add up to 50 files at a time and download the results one by one or as a single ZIP file.