Free, private, and no server upload.
Compress files directly in your browser. LessMB reduces JPG, PNG, GIF, WebP, AVIF, MP4, MOV and PDF file size with local processing and no server upload.
Add your image, video, or PDF file.
Everything runs in your browser — nothing leaves your device.
Save the smaller file instantly.
Reduce image file size for websites, email, stores, newsletters and forms. LessMB compresses supported image files on your device, so private photos and design assets do not need to leave your browser.
Open image compressorReduce video file size for sharing, upload limits, presentations and websites. LessMB runs video compression in your browser so clips do not need to be sent to a remote server.
Open video compressorReduce PDF file size for email, forms, reports and document portals. LessMB optimizes supported PDFs in the browser and keeps sensitive documents on your device.
Open PDF compressorPrepare JPG, PNG, GIF, WebP, AVIF and JXL assets for pages, stores, newsletters and forms without sending originals through a cloud queue.
Reduce screen recordings, short clips and presentation media when upload limits, storage quotas or messaging apps need a smaller MP4.
Shrink reports, scans and forms locally before sending them through email, school portals, business systems or shared drives.
The compression work happens in your browser session, which keeps sensitive files on your device while you tune size and quality.
Quick answers about privacy, supported file types, and how LessMB handles compression in your browser.
Yes. LessMB provides free browser-based compression tools for supported image, video and PDF files.
No. Files are processed locally in the current browser session, which helps keep private photos, videos and documents on your device.
Use the image compressor for JPG, PNG, GIF, WebP, AVIF and JXL files, the video compressor for MP4, MOV and WebM files, and the PDF compressor for documents.
No. Files that are already highly optimized may stay similar or become larger, so LessMB lets you compare results before using the output.
