Video Format Converter
Convert videos between formats instantly in your browser
Convert MP4, WebM, MKV, MOV, AVI and more. No uploads, completely private.
Why Convert Video Formats?
Different platforms, devices, and use cases require different video formats. Converting your videos ensures compatibility, optimal file size, and the best quality for your needs:
- Platform Compatibility - Some platforms prefer specific formats (e.g., Discord loves MP4)
- File Size Optimization - Modern formats like WebM offer better compression
- Quality Preservation - MKV supports lossless compression for archival
- Device Support - Older devices may not support newer formats
- Editing Workflows - Video editors often require specific formats
Supported Video Formats
MP4
Most compatible format
Works everywhere - phones, TVs, browsers, social media
WebM
Best for web
Smaller files, modern browsers, excellent streaming
MKV
Best for quality
Lossless compression, multiple audio tracks, subtitles
MOV
Apple standard
QuickTime format, great for Mac/iOS, video editing
AVI
Legacy format
Wide compatibility, older devices, large file sizes
More
Many formats supported
FLV, WMV, 3GP, MPEG and more
Best Format for Your Needs
MP4 - Best for Compatibility
Choose MP4 when you need your video to work everywhere. It's supported by virtually all devices, platforms, and browsers. Perfect for social media, video sharing, and general use.
WebM - Best for Web
Choose WebM for websites and web applications. It offers better compression than MP4, resulting in smaller file sizes with similar quality. Ideal for video streaming and web embedding.
MKV - Best for Quality
Choose MKV when quality is paramount. It supports lossless compression and can contain multiple audio tracks, subtitles, and chapters. Perfect for archival, personal libraries, and high-quality video storage.
MOV - Best for Apple Ecosystem
Choose MOV when working with Apple devices or video editing software like Final Cut Pro. It's the native format for QuickTime and maintains excellent quality during editing workflows.
How Video Format Conversion Works
Our video format converter uses FFmpeg.wasm, a powerful WebAssembly port of the industry-standard FFmpeg tool. This means:
100% Private
All conversion happens in your browser. Your videos never leave your device.
Lightning Fast
Native browser performance with WebAssembly means conversions complete in seconds.
Completely Free
No subscriptions, no limits, no watermarks. Convert unlimited videos for free.
Works Offline
Once loaded, convert videos without an internet connection.
Format Comparison Table
| Format | File Size | Quality | Compatibility | Best For |
|---|---|---|---|---|
| MP4 | Medium | Good | ⭐⭐⭐⭐⭐ | General use, social media |
| WebM | Small | Good | ⭐⭐⭐⭐ | Web streaming, websites |
| MKV | Large | Excellent | ⭐⭐⭐ | Archival, quality storage |
| MOV | Large | Excellent | ⭐⭐⭐ | Apple devices, video editing |
| AVI | Very Large | Good | ⭐⭐⭐⭐ | Legacy devices |
Frequently Asked Questions
Is video format conversion really free?
Yes! Our converter is 100% free with no hidden costs, subscriptions, or limits. Convert as many videos as you want, any time.
Are my videos uploaded to a server?
No! All conversion happens locally in your browser using WebAssembly. Your videos never leave your device, ensuring complete privacy.
How long does conversion take?
Conversion time depends on your video's size and your device's performance. Most videos convert in under a minute. The first conversion may take longer as the tool downloads necessary files.
What's the maximum file size I can convert?
The limit depends on your device's available memory. Most modern devices can handle videos up to 2GB. For larger files, consider compressing them first.
Will conversion reduce video quality?
Conversion maintains your original quality by default. You can also choose to compress during conversion if you need smaller file sizes.
Can I convert multiple videos at once?
Currently, we support single video conversion. For batch conversion needs, you can process videos one at a time. Batch mode may be added in future updates. If you need other file format tools, try PDF Image to extract images from PDFs.
⚠️ Disclaimer: Conversion results may vary depending on your video's source format, codec, and quality settings. This tool is provided as-is for your convenience. Always verify converted videos meet your requirements before use.