VideoSize.netVideoSize
100% Browser-Based Processing

Professional Video Processing Tools

Compress, resize, and optimize videos directly in your browser. No upload required, complete privacy protection, unlimited usage.

100% Free Forever
No Registration Required
Complete Privacy Protection
Process Videos Locally

Professional Video Tools

Everything you need to optimize your videos for any platform

Video Compressor
Reduce file size by up to 80% while maintaining quality
Smart compression
Quality preview
Batch processing
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Online Compressor
Fast online compression with instant results
Lightning fast
No limits
Mobile optimized
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Video Resizer
Resize and adapt videos for any platform or device
Custom dimensions
Platform presets
Aspect ratio lock
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Video Cropper
Crop and edit videos with precision
Visual cropping
Rotation
Timeline editing
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Size Calculator
Calculate video sizes and compression ratios
Accurate estimates
Format comparison
Storage planning
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Platform Guide
Learn optimal video specs for every platform
YouTube specs
Social media
Best practices
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Why Choose VideoSize.net?

Complete Privacy

Videos never leave your browser. Everything is processed locally on your device.

Professional Quality

Advanced FFmpeg processing delivers broadcast-quality results every time.

No Limits

Process unlimited videos of any size. No registration or subscription required.

All Formats

Support for MP4, MOV, AVI, MKV, WebM, and many more video formats.

How It Works

How It Works

Simple 3-step process to optimize your videos

01

Upload Your Video

Drag and drop your video file or click to browse. Files stay on your device.

02

Choose Settings

Select compression level, output format, or platform preset for optimal results.

03

Download Result

Get your optimized video instantly. Compare before and after results.

FAQ

Frequently Asked Questions

Everything you need to know about VideoSize.net

Is VideoSize.net really free?

Absolutely! VideoSize.net is 100% free forever. We believe video processing should be accessible to everyone. There are no hidden fees, premium subscriptions, or usage limits. You can compress, resize, and crop unlimited videos without ever paying a cent. We're committed to keeping all our tools completely free while maintaining professional-grade quality.

Do you store my videos?

Never! Your privacy is our top priority. All video processing happens entirely within your web browser using WebAssembly technology. Your videos never get uploaded to our servers or leave your device. This means faster processing, complete privacy protection, and no risk of data breaches. Even we can't see your videos - they stay 100% private on your computer.

What video formats are supported?

We support virtually all video formats you'll encounter. Major formats include MP4, MOV, AVI, MKV, WebM, FLV, 3GP, ASF, WMV, M4V, and many more. Our FFmpeg-powered engine handles both common and obscure formats seamlessly. You can also convert between different formats during processing. If you have a video file, chances are we can process it.

Is there a file size limit?

No artificial limits imposed by us! The only limitation is your device's available memory (RAM). Most modern computers can easily handle videos up to several gigabytes. For reference: 8GB RAM can typically process 4-6GB videos, while 16GB+ can handle much larger files. Processing happens locally, so there are no server upload restrictions or bandwidth concerns.

How does compression work?

We use industry-standard FFmpeg algorithms with advanced optimization techniques. Our compression intelligently analyzes your video's content, motion, and visual complexity to find the perfect balance between file size and quality. You can choose from multiple compression levels: light compression (10-30% reduction), standard (30-60% reduction), or aggressive (60-80+ reduction). The smart encoder preserves important details while removing redundant data.

How fast is the processing?

Processing speed depends on your device's CPU power and video complexity. Typically: a 100MB video compresses in 30-90 seconds on average computers, while powerful machines can process the same video in 10-30 seconds. Since everything runs locally, there's no upload/download time - just pure processing. Newer devices with multiple CPU cores will see significantly faster performance.

Can I process multiple videos at once?

Yes! Our batch processing feature allows you to queue multiple videos for processing. You can add several videos, apply the same or different settings to each, and process them sequentially. This is perfect for content creators who need to process multiple videos with consistent settings. The queue continues running even if you switch browser tabs.

What's the video quality after compression?

Our smart compression maintains excellent visual quality while dramatically reducing file size. We use variable bitrate encoding, which allocates more bits to complex scenes and fewer bits to simple scenes. Most users can't tell the difference between original and compressed videos, even at 50-70% size reduction. You can preview the quality before downloading and adjust settings if needed.

Do I need to install any software?

Not at all! VideoSize.net runs entirely in your web browser using cutting-edge WebAssembly technology. No downloads, no installations, no browser plugins required. It works on any modern browser (Chrome, Firefox, Safari, Edge) across all operating systems (Windows, Mac, Linux, even mobile). Just visit our website and start processing immediately.

Can I use this on mobile devices?

Yes! Our tools are fully optimized for mobile devices. While processing may be slower on phones/tablets due to hardware limitations, all features work perfectly. The interface adapts to smaller screens, and touch controls make it easy to select files and adjust settings. Perfect for quick video optimizations on the go.

What if processing fails or gets stuck?

If processing encounters an issue, try these solutions: refresh the page and try again, ensure your browser is up-to-date, close other memory-intensive tabs, or try a different compression level. For very large files, consider breaking them into smaller segments first. Our error handling provides helpful messages to guide troubleshooting. If problems persist, the video format might need conversion first.