Convert Video Online
Convert videos between MP4, WebM, AVI, and MOV formats instantly. No upload to any server — processed 100% in your browser using FFmpeg WebAssembly.
Drop your video file here
or click to browse files
Your files never leave your device. All processing happens locally in your browser using WebAssembly.
How to Convert Video
Select or drop your video file
Choose the target format (MP4, WebM, AVI, MOV)
Click Convert and wait for processing
Download your converted video
Why Use Our Convert Video Tool
- Convert between MP4, WebM, AVI, and MOV
- High-quality re-encoding preserves visual fidelity
- No file size limits
- 100% private — files never leave your device
- Fast processing with FFmpeg WebAssembly
- No software installation or signup required
- Works on Chrome, Firefox, Safari, and Edge
- Perfect for making videos compatible with any platform
Convert Video — Frequently Asked Questions
Which video formats can I convert between?
You can convert between MP4, WebM, AVI, and MOV. MP4 is the most universally supported format, WebM is optimized for web use and smaller file sizes, AVI offers wide legacy compatibility, and MOV is native to Apple devices.
Will I lose quality when converting video?
The conversion re-encodes the video, which may result in minimal quality changes. For most use cases, the difference is imperceptible. The tool uses high-quality encoding settings by default to preserve visual fidelity.
Why should I convert my video to WebM?
WebM is an open, royalty-free format optimized for the web. It typically produces 30-50% smaller file sizes than MP4 while maintaining good quality, making it ideal for websites, blogs, and web applications.
How do I convert MOV files from iPhone to MP4?
Simply upload your MOV file and select MP4 as the target format. The conversion runs entirely in your browser — no need to install any software. The resulting MP4 will play on virtually any device.
How long does video conversion take?
Conversion time depends on file size and your device's processing power. A typical 100MB video takes 30-60 seconds on modern hardware. Larger files or older devices may take longer.
Is my video uploaded to a server?
No. All processing happens locally in your browser using WebAssembly. Your video never leaves your device, ensuring complete privacy and security.
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