Free Private PDF & Image Compressor — Exact KB, No Uploads
Compress PDFs and images to exact KB sizes — privately in your browser. Set your target, let our smart algorithm do the rest. No uploads, ever.
All processing is done locally in your browser.
More Free Tools
All running 100% locally in your browser
Compress PDF
Shrink documents without losing text quality
PDF to Image
Convert PDF pages to high-quality JPG or PNG
Image to PDF
Combine multiple images into a single document
Image Converter
Change between JPG, PNG, and WebP instantly
Merge PDFs
Combine multiple PDF files into one
Split PDF
Extract pages or separate a PDF into multiple files
Extract Text
Pull all readable text out of a PDF document
Strip EXIF & GPS
Remove private location and camera metadata tags from photos privately
Why Choose CompressKaro?
100% Private & Secure
All compression and format conversion happen locally in your browser. Your documents and photos never touch the cloud, eliminating server-side leakage risks.
Exact KB Target Matching
Specify exact constraints like 20KB or 50KB for job portals. Our smart binary search algorithm scales image quality dynamically to meet your target perfectly.
Broad Format Compatibility
Process JPEG, PNG, WebP, and Apple HEIC photos along with PDF documents. Split, merge, extract, and convert them seamlessly without leaving the page.
Full Offline Support
Once loaded, our client-side engine runs completely offline. Compress photos and PDF documents securely anywhere, even without internet connection.
Free & Unlimited
No subscriptions, no registration forms, no daily limits, and absolutely no watermarks. Just pure local utilities ready whenever you need them.
Frequently Asked Questions
Is CompressKaro safe to use for government forms and KYC?
Yes, absolutely. Because all file processing and compression happen entirely inside your web browser locally, sensitive documents (like Aadhaar, PAN card scans, signatures, or photos) are never uploaded to any remote server or stored in a database. Your data is 100% private.
How does the 'Exact KB' image compression work?
Our engine uses a local binary-search algorithm. It adjusts the quality, resolution, and format settings recursively on your device, seeking the highest possible visual clarity that fits under your exact target limit in KB (e.g., 20KB or 50KB).
Does this tool store a copy of my documents or photos?
No. CompressKaro is designed on a zero-server architecture. Your files remain temporarily in your device's browser memory while being optimized, and are completely cleared the moment you close the browser tab.
Can I use this compressor offline?
Yes! Since the application code runs client-side using Javascript and WebAssembly, once the page is loaded, you can compress, convert, merge, or split your files even when you have no active internet connection.
Are there any file limits or watermarks?
No. You can compress as many files as you want. There are no signup gates, no premium limits, and the tool does not add any watermarks to your outputs.