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You're in good company:
Zamzar has converted and compressed over 510 million files since 2006
Compress to different file sizes
You can use Zamzar to process a wide range of different files - just click on a format to get started:
Why compress JPGs to 40kb
Large JPG images can cause headaches when you're trying to upload them to websites, share them via email, or post them on social media platforms. Many sites have strict file size limits, and email providers often cap attachments at a few megabytes. If your images are too big, you'll face rejected uploads, failed emails, or frustratingly slow loading times that can drive visitors away from your content.
Compressing JPG files to 40KB solves these problems whilst maintaining enough quality for most online uses. This specific size works well for profile pictures on professional networking sites, product thumbnails for e-commerce platforms, or images for job applications and online forms. You'll find that many content management systems and social media platforms actually recommend files around this size to ensure quick page loading and a smooth user experience. Smaller files also mean you can store more photos in cloud storage or on your device without running out of space.
Zamzar's compression tool makes this process simple. You'll upload your JPG, and the service automatically compresses it to 40KB whilst preserving as much image quality as possible. There's no need to install software or learn complicated settings. Within moments, you can download your optimised file and use it wherever you need. Whether you're building a website, applying for jobs online, or managing digital content, having images at the right size saves time and prevents technical issues.
Highly Reputable
Zamzar has been featured by TechCrunch, Wired, Lifehacker, the Guardian, and many more publications.
Highly Reliable
We convert tens of thousands of files each day, and have done for over ten years, and for each conversion we strive to provide the best experience possible.
Very Experienced
We pride ourselves on being the best online file-conversion site there is, and because we’ve got over 15 years of experience, we’re confident we know what our customers need.
Dedicated Support
We want to make sure your experience is as positive as possible, so if you run into an issue for any reason, we want to help resolve it.