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You're in good company:
Zamzar has converted and compressed over 510 million files since 2006
Resize 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 resize your image to 30kb
Image file sizes can create unexpected barriers when you're trying to get work done online. Many platforms impose strict upload limits, and if your images exceed these restrictions, you'll face rejected uploads, failed form submissions, or bounced emails. Large files also drain bandwidth, slow down page loading speeds, and fill up cloud storage faster than necessary. For anyone managing multiple images across different platforms, these issues add up quickly and create unnecessary friction.
Resizing images to 30KB offers a sweet spot for everyday sharing needs. You'll retain reasonable image quality for most purposes whilst ensuring compatibility with a wide range of platforms and services. This size is particularly useful for real estate agents uploading property thumbnails to listing sites, designers sharing mood board concepts with clients, bloggers adding feature images to posts, or HR departments processing employee photos for internal directories. Online sellers often resize product images to 30KB for marketplace listings that need to display clearly without causing slow page loads, and educators use this size for visual aids in digital learning materials.
Zamzar's online image resizer makes the process straightforward. Simply upload your image, and we'll compress and resize it to 30KB for you. You can then download your optimised file and use it wherever you need it.
Privacy
We take privacy incredibly seriously at Zamzar, and have a detailed privacy policy that you can read here.
Quick
We’re always trying to improve the file conversion speeds. That’s why we've recently added real-time conversion, which means you no longer need to enter your email to get your converted file.
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.
High Quality
Zamzar prides itself on the highest-quality file conversion, so you won’t be able to tell the difference between your uploaded file and your newly converted file.