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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 30kb
Large JPG images can create significant obstacles when you're trying to share them online. Whether you're uploading profile pictures to social media, attaching images to job applications, or adding photos to online forms, many platforms impose strict file size limits. If your image exceeds 30KB, you might find yourself stuck with error messages or rejected uploads. Email attachments can also bounce back if they're too large, and oversized images slow down website loading times, frustrating visitors and hurting your search rankings.
Compressing JPG files to 30KB solves these problems whilst maintaining acceptable image quality. You'll find this particularly useful when submitting passport photos or ID pictures for visa applications, where government websites often specify exact file size requirements. It's also essential for creating lightweight email signatures, optimising product thumbnails for online shops, or preparing images for mobile apps where data usage matters. Teachers and students sharing assignment materials will appreciate smaller files that upload quickly to learning platforms.
Zamzar's online compression tool makes this process straightforward. Simply upload your JPG, and the service compresses it to your target size without requiring any technical knowledge or software downloads. You'll get a file that meets size restrictions whilst keeping your image recognisable and usable for its intended purpose.
Multiple File Formats
With hundreds of file formats supported, you won't need to go anywhere else to convert your files.
No Software Required
Zamzar supports over 1100 file-conversion types, meaning you won't need to download any software to convert a file ever again.
Innovation
We strive to give you the best experience we possibly can, which is why we’ve added real-time file conversion and why we’re always increasing the number of file conversions we support.
No Account Needed
We want to make sure the experience of converting a file is as seamless and as quick as it can be. That’s why we don't ask you for any personal details to convert a file.