Smart compression presets
From Light to Maximum—pick the balance between file size and visual quality that fits your needs.
Free Online Video Compressor
Shrink MP4, MOV, MKV, and WebM videos in your browser—free, no install, no upload. Drag and drop files, pick a compression level, and download smaller videos. Everything runs on your device for complete privacy.
Drag & drop videos to compress
or click anywhere in this area to choose files
MP4, MOV, MKV, WebM, AVI and more · Max 500 MB per file
MB
Min: 5 MB / Max: Original size
Processed locally in your browser — files never leave your device. Need target file size, batch jobs, or faster compression? Try the Windows desktop app.
Why Use This Free Online Video Compressor?
Powerful browser-based compression with the same privacy-first approach as our desktop suite.
See your savings
After compression, each file shows original vs. output size and the percentage you saved.
Privacy-first
Everything runs on your device in the browser—your originals stay private and never upload.
How to Compress Video Online in 3 Steps
From large footage to shareable files—in minutes.
1
Add videos
Drag and drop videos or click Choose Files. Multiple files can be queued at once.
2
Choose settings
Select a compression preset, optional resolution, and output format—then hit Compress All.
3
Download
Save smaller files directly to your device when processing completes.
Online Video Compressor FAQ
Answers to common questions about compressing video in your browser.
Is this online video compressor free?
Yes. You can compress video files at no cost and without creating an account. Open the page, add your files, and start compressing.
Are my files uploaded to your servers?
No. Compression runs locally in your browser. Your files are processed on your device and are not sent to Videoradius servers.
Which compression level should I choose?
Balanced works well for most sharing and social uploads. Use Light when quality matters most; use Strong or Maximum when you need the smallest possible file.
What is the maximum file size?
Each file can be up to 500 MB. Larger files may take longer depending on your device, browser, and chosen settings.
Need target file size or faster batch compression?
For precise target size, GPU acceleration, and fully offline processing, try the Videoradius Video Compressor desktop app for Windows.
Need Pro Compression on Windows?
Videoradius Video Compressor supports target file size, GPU acceleration, and 100% offline batch processing.