Best Free Online Video Compressor by FreeMetadata
Welcome to the Video Compressor by FreeMetadata, your ultimate solution to reduce video size without losing quality. In the era of 4K smartphone recording, video files have become massive. Sharing them on WhatsApp, Email, or Discord is often blocked due to file size limits.
Our powerful browser-based tool lets you compress MP4, MKV, WebM, and even convert videos into animated GIFs — entirely within your browser. No server upload, 100% private, blazing fast.
Why Compress Videos Online?
- Save Storage: Shrink a 1GB video down to 100MB using H.264/H.265 codecs.
- Faster Uploads: Smaller files mean faster YouTube, Instagram, or TikTok uploads.
- Bypass Email Limits: Compress to send via Gmail (25MB) or Outlook.
- Discord Friendly: Fit videos under the 8MB or 25MB Discord limit easily.
How Our Browser-Based Compressor Works (100% Secure)
Unlike traditional online converters that upload your private videos to remote servers, the FreeMetadata Video Compressor uses WebAssembly (WASM) and FFmpeg. Everything happens locally on your device. Your files never leave your browser.
Step-by-Step Guide
- Upload File: Drag and drop your MP4, MKV, AVI, or WebM file.
- Choose Preset: Pick Low, Medium, High quality — or go Custom.
- Set Target Size: Enter your desired output size in MB.
- Choose Resolution: Keep original or scale down to 1080p, 720p, 480p.
- Add Watermark (Optional): Upload a PNG logo for branding.
- Trim Video (Optional): Set start and end times.
- Click Compress: Your optimized video auto-downloads!
Key Features
- 🚀 Lightning Fast: Powered by WebAssembly for native-speed processing.
- 🔒 100% Private: No server uploads — your files stay on your device.
- 🎨 Watermark Support: Add PNG logos to brand your videos.
- ✂️ Video Trimming: Cut start/end without re-uploading.
- 📱 Mobile Friendly: Works on Android, iOS, Windows, Mac.
- 🌓 Dark Mode: Easy on the eyes during night editing.
- 🎬 Multiple Formats: MP4, MKV, WebM, GIF output.
- 💯 Forever Free: No signup, no watermark, no premium tier.
Explore Other FreeMetadata Tools
Check out our other free tools! Try our CSV Metadata Extractor, our Image Converter, or browse All Tools.
Frequently Asked Questions
Is this video compressor truly free?
Yes! 100% free. No subscriptions, no hidden fees, no forced watermarks on your output.
Will my video lose quality?
Our Smart Quality Guard with the Lanczos algorithm preserves sharpness. You won't see pixelation unless you choose extreme compression.
Is my video uploaded to a server?
No! Everything runs locally in your browser using WebAssembly. Your files never leave your device.
What file formats are supported?
Input: MP4, MKV, AVI, MOV, WebM, HEVC, and more. Output: MP4, MKV, WebM, GIF.
What's the maximum file size I can compress?
It depends on your device's RAM. Most modern phones handle 500MB-1GB easily. Desktop browsers can handle 2GB+.
Why is the first compression slow?
The FFmpeg engine (~25MB) downloads once on first use. After that, it's cached and starts instantly.