How to Reduce Image File Size for the Web
Shrink photos for faster pages and easier sharing.
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Image Compressor & Resizer
Make images smaller in file size and dimensions. Works on many images at once, right in your browser.
No registration required
Secure & private
Works on any device
Click to choose images, or drag and drop them here
JPG, PNG, WebP and more. You can add many files.
80%
Your images are compressed automatically. Change any setting and the result updates.
100% Private
Images are processed locally in your browser — nothing is uploaded.
Fast
No waiting on uploads. Compression runs right on your device.
Free & Unlimited
No account, no watermark, no file limits.
How to compress and resize images
Three quick steps. Nothing to install and nothing leaves your device.
1
Add your images
Drag one or many images onto the box above, or click it to browse.
2
Adjust the settings
Choose the output format, quality and an optional new size. Results update automatically.
3
Download
Compare before and after, then download each image or get them all as a ZIP.
Learn about Images
Helpful guides on image formats, quality and file size.
Frequently asked questions
Quick answers about the ConvertKit Lite Image Compressor & Resizer.
Are my images uploaded to a server?
No. Compression runs in your browser, so your images are not uploaded anywhere.
Which quality setting should I use?
70–85% usually looks nearly identical to the original while making the file much smaller. Go higher for detailed images, lower for the smallest size.
Which output format is smallest?
WebP is usually the smallest, followed by JPG. PNG is lossless, so quality does not apply and files stay larger.
Can I process many images at once?
Yes. Add as many images as you like, then download them one by one or all together as a ZIP.
Why is my result sometimes larger?
Flat graphics and screenshots can compress better in their original format. The result list marks any file that grew so you can keep the original.
Why can't my browser open a file?
Browsers can open JPG, PNG, WebP and GIF. Formats such as HEIC or HEIF may not work, so convert those to JPG first.