Convert FLV to MP4
Free online FLV to MP4 converter. Convert your FLV files to MP4 format instantly with our privacy-first tool. No uploads, 100% secure.
Conversion Engine Ready to Start
Initialize the conversion engine to start converting your files. This process loads the necessary library for file conversion.
How to Convert FLV to MP4
Quick Steps:
- Upload your video file using the dropzone above
- Adjust resolution, quality and compression if needed
- Click Convert File to start the conversion
- Download your converted MP4 file
Why Choose Our Converter:
- 100% client-side processing
- No file uploads to servers
- Fast and secure conversion
- Free with no registration required
- Works offline once loaded
Video Conversion Features:
Use Case: Great for video optimization, platform compatibility, or file size reduction
About FLV Format
Legacy Flash Video container. Modern web should prefer MP4 or WebM. Our converter supports FLV files and can convert them to various formats including MP4.
About MP4 Format
Industry standard for video sharing and streaming. Perfect balance of quality and compatibility. Converting to MP4 format gives you excellent results with most widely supported video format. excellent for web and mobile playback..
Supported Formats
Convert between all major formats with our privacy-first converter
In Development
- Document conversions (PDF, DOCX, etc.)
- Archive conversions (ZIP, RAR, etc.)
- Additional image formats (TIFF, PSD, AI, RAW)
Supported Conversions
Explore all the input and output image formats supported by OfflineConvert.
Video Conversions
Convert between all major video formats including MP4, WebM, AVI, MOV, and more
All conversions are processed entirely in your browser for complete privacy.
Frequently Asked Questions
Yes, our converter is completely safe. All conversions happen locally in your browser, so your files never leave your device or get uploaded to any server.
No installation required. Our web-based converter works directly in your browser using WebAssembly technology for fast, efficient conversions.
MP4 supports resolutions up to 4K. You can maintain the original resolution or reduce it for smaller file sizes. Common choices are 1080p for high quality, 720p for balanced quality/size, or 480p for maximum compression.
Video conversion time depends on your device's processing power, video length, resolution, and quality settings. Short clips (under 1 minute) typically convert in seconds to minutes, while longer videos may take proportionally longer.
Yes, MP4 supports audio tracks, so your video's audio will be preserved during conversion. You can also adjust audio quality settings if needed.
MP4 format offers specific advantages: universal browser compatibility, audio and video support. This makes FLV to MP4 conversion ideal for your specific use case.