Compress images online for free
Compress JPG, PNG and WebP automatically while keeping the original format and dimensions.
Up to 20 images · 25 MB each
Your images
- Works in your browser
- No image uploads
- No account needed
Tools
Everything you need to prepare images
Compress images
Compress image files in your browser
OpenCompress to a File Size
Reduce images to a chosen file size
OpenImage Resizer
Resize images to exact dimensions
OpenCrop Image
Crop images to the perfect frame
OpenProduct Image Optimizer
Prepare consistently sized product images
OpenConvert formats
HEIC, JPG, PNG, WebP, AVIF and SVG.
OpenAdd Watermark
Add text or a logo to your image
OpenRemove Image Metadata
Remove EXIF, camera and location metadata
OpenConvert image formats
Choose an output format
More editing tools8
Rotate and Flip Image
Rotate 90° or flip your image
OpenCombine Images
Combine images in a row or grid
OpenRounded Image Corners
Round corners and choose a background
OpenPixelate Image
Pixelate or cover a selected area
OpenAdd a background to a transparent image
Add a solid background before JPG export
OpenSocial Media Sizes
Resize images for social-media platforms
OpenImage Metadata Viewer
Check EXIF, GPS and camera details
OpenFavicon generator
Create ICO and PNG icons for your website
OpenFormats
Choose the right image format.
A photo, a graphic or an image for your website? Choose the format that fits where the image will be used.
JPG for photos
Adjust photo quality and file size. JPG is easy to share and widely supported.
PNG and transparency
Keep transparent backgrounds and sharp detail in graphics.
WebP for websites
WebP can reduce image file sizes for websites. It also supports transparency.
AVIF for smaller files
Compress photos efficiently. Check that your destination supports AVIF.
Guides
Learn before you export
How to Reduce Image File Size Without Visible Quality Loss
Reduce image file size with a practical workflow for dimensions, formats and quality.
Read guide
How to Resize an Image Without Stretching It
Resize an image without stretching: lock the aspect ratio, change one dimension and choose cropping or borders when you need a different shape.
Read guide
Best Image Format for Websites: JPG, PNG, WebP or AVIF?
Choose an image format for photos, screenshots and transparent graphics.
Read guideFrequently asked questions
Answers to common questions about image compression, file sizes, formats, and privacy.
How do I compress an image online?
Choose up to 20 JPG, PNG or WebP images, up to 25 MB each. Compression happens automatically on your device. The format and dimensions are preserved. If the result is not smaller, the original is kept.
Can I compress JPG, PNG and WebP images?
Yes. JPG stays JPG, PNG stays PNG, and WebP stays WebP. The maximum is 8000 pixels per side and 32 million pixels in total. Animated PNG and WebP files are kept unchanged.
Does compressing an image reduce its quality?
JPG and WebP are recompressed with a moderate lossy setting, so some detail can change. PNG is optimized losslessly without reducing its colors. Compare the preview and keep the original for future editing.
Are my images uploaded to a server?
No. Pixilo processes image compression directly in your web browser. Your image does not need to be uploaded to an external server for compression, so the original file remains on your device during the compression process.
Is Pixilo a free image compressor?
Yes. Choose your images, compare the automatically compressed results and download the copies you want. No account or installation is needed. The automatic compressor has no quality slider and does not make every file smaller.
What is the best way to reduce image file size?
Adjust the quality and compare the preview and file sizes. Lower quality can reduce file size but may remove detail. Already optimized images may not become smaller.
Why should I compress images before uploading them to a website?
Compressing images before adding them to a website can reduce page weight and help images load faster. Smaller image files use less bandwidth and storage, which can be especially useful for mobile visitors and pages that contain many images. Image compression is an important part of website performance and image optimization.
How much can an image be compressed?
The result depends on the source image, its format and its existing compression. This tool keeps the format and dimensions unchanged. Compare the original and output sizes; if compression does not save space, Pixilo keeps the original.