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  3. Video Format Converter - MP4, WebM, MOV, AVI, MKV
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About Video Format Converter - MP4, WebM, MOV, AVI, MKV

Convert videos between all popular formats including MP4, WebM, MOV, AVI, and MKV with our free Video Format Converter. Features platform-specific presets for YouTube, Instagram, TikTok, and more. All conversion happens locally in your browser - your videos stay private and secure.

How to Use

  1. 1Upload your video file in any supported format
  2. 2Select your desired output format or choose a platform preset
  3. 3Adjust quality settings if needed (affects file size and conversion speed)
  4. 4Click "Convert" to begin processing
  5. 5Download your converted video when complete

Key Features

  • Supports MP4, WebM, OGG, MOV, AVI, MKV formats
  • Platform presets for YouTube, Instagram, TikTok, Twitter
  • Device presets for iPhone, Android, tablets
  • Quality options: Fast, Balanced, High Quality
  • Audio codec options: AAC, MP3, Opus
  • Resolution adjustment up to 4K
  • Progress indicator with time estimate
  • Batch conversion capability

Common Use Cases

Converting MOV files from iPhone to universal MP4Creating WebM versions of videos for web optimizationMaking videos compatible with specific platformsConverting old AVI/MKV files to modern formatsPreparing videos for Android or iOS devices

Frequently Asked Questions

Which format should I use?

MP4 (H.264) has the best compatibility across all devices and platforms. WebM offers better compression but less compatibility. Use platform presets when uploading to specific sites.

Why is conversion slow?

Video encoding is computationally intensive. Processing happens in your browser using WebAssembly. Higher resolutions and longer videos take more time.

Will I lose quality during conversion?

Some quality loss is normal when re-encoding to lossy formats. Use "High Quality" preset to minimize this. Converting to the same format with same settings preserves most quality.

Privacy First

All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.

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Video Format Converter

Convert video files between different formats with device-optimized presets

Drop video file here

or click to browse

Supports MP4, WebM, MOV, AVI, MKV • Max 2GB

Format Recommendations

  • • MP4: Best for sharing - works everywhere
  • • WebM: Best for web - smaller files, native browser support
  • • MOV: Best for Apple devices and Final Cut Pro
  • • MKV: Best for archiving - supports multiple tracks
  • • AVI: Legacy support for older software

Found a bug? Contact us at support@loopaloo.com

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