FLV ↔ MP4 Converter
Convert between FLV and MP4 video formats online for free. Fast, secure, and high-quality conversion with swap functionality.
Video Conversion
Drag & drop video files or click to browse
Supports MP4, AVI, MOV, WMV, FLV, MKV files up to 1.5GB
Why Convert Between FLV and MP4?
Modern Compatibility
MP4 format is the current standard for video sharing and streaming, ensuring your videos work on all modern devices and platforms.
Legacy Support
FLV format was used for Flash-based web content and streaming, but is now largely obsolete and should be converted to modern formats.
Mobile Optimization
MP4 format is optimized for mobile devices and modern browsers, providing better performance and compatibility than FLV.
Future-Proofing
Converting FLV to MP4 ensures your videos remain compatible with future technologies and platforms.
How to Convert FLV to MP4 or MP4 to FLV
- Upload your video file(s) by dragging and dropping or clicking to browse
- Select your desired source and target formats (or use the swap button)
- Click "Convert" to start the conversion process
- Download your converted video file(s) when ready
Supported File Formats
FLV
Input/Output Format
MP4
Input/Output Format
Swap
Bidirectional
Batch
Multiple Files