Compress Image to 100KB Online Free
Compress images to around 100KB using BuBird ImageStudio. Useful for online forms, job portals, exam applications and email attachments.
How to use this tool
Follow these simple steps to process your images directly in your browser.
Step 1
Upload your image: Choose an image from your files or drop it into the upload box.
Step 2
Select the 100KB target option: The default tiny quality preset is selected to compress under 100KB.
Step 3
Compress the image: Click the process button. The local browser client runs the compression script.
Step 4
Preview the compressed file size: View the resulting file size on the card to ensure it is below 100KB.
Step 5
Download the optimized image: Save the newly compressed image file to your device.
Why choose BuBird
Fits Portal Size Limits
Many application forms allow files of maximum 100KB. This tool is built specifically to compress your JPG and WebP images to fit these exact limits without having to guess quality settings.
No Server Uploads
Many BuBird ImageStudio tools process files directly in your browser. No server uploads are required for this tool, so your files stay safe on your device whenever possible. This is crucial when uploading official identity photos.
Optimized File Formats
To achieve sizes below 100KB, the tool uses optimized lossy compression, discarding extra visual data while keeping the photo sharp enough for official review.
Always Free & Watermark-Free
Some online converters restrict size-specific compression behind paywalls. BuBird provides this feature free, letting you download water-free images instantly.
Common use cases
Government Portal Submissions
Ideal for resizing profile pictures and scanned documents to fit strict 100KB limits on government agency websites.
Online College Applications
Students can compress application documents and ID photos for school and university portals.
Passport Photo Compression
Quickly compress visa and passport applications photo files to meet size specifications.
Email Attachment Optimization
Reduce heavy files to under 100KB to ensure they send instantly and do not fill up the recipient's email storage.
Related ImageStudio Tools
Explore more free browser-based image utilities. No uploads, no signups.
Frequently Asked Questions
Everything you need to know about our browser-based image tool.
Start editing your images now
Fast, private, and 100% free browser-based image tools. Files stay safe on your device whenever possible.