Convert between 22 video formats and 20 audio formats with our privacy-first media converter. All processing happens in your browser - no uploads, no data collection, no file size limits.
Popular Conversions
Video Format Conversions
The most common video conversions for web, social media, and compatibility:
| From → To | Description | Convert |
|---|---|---|
| MP4 → WebM | Modern web format, better compression | Convert MP4 to WebM |
| WebM → MP4 | Universal compatibility, social media | Convert WebM to MP4 |
| AVI → MP4 | Legacy to modern, smaller files | Convert AVI to MP4 |
| MOV → MP4 | Apple to universal format | Convert MOV to MP4 |
| MKV → MP4 | High-quality to compatible | Convert MKV to MP4 |
| FLV → MP4 | Flash to modern format | Convert FLV to MP4 |
| WMV → MP4 | Windows to universal | Convert WMV to MP4 |
| MP4 → GIF | Video to animated image | Convert MP4 to GIF |
| GIF → MP4 | Animated image to video | Convert GIF to MP4 |
Audio Format Conversions
The most common audio conversions for music, podcasts, and compatibility:
| From → To | Description | Convert |
|---|---|---|
| MP3 → WAV | Compressed to lossless | Convert MP3 to WAV |
| WAV → MP3 | Lossless to compressed | Convert WAV to MP3 |
| FLAC → MP3 | Lossless to universal | Convert FLAC to MP3 |
| M4A → MP3 | Apple to universal | Convert M4A to MP3 |
| AAC → MP3 | Modern to compatible | Convert AAC to MP3 |
| OGG → MP3 | Open source to universal | Convert OGG to MP3 |
| MP3 → FLAC | Compressed to lossless | Convert MP3 to FLAC |
| WAV → FLAC | Uncompressed to lossless | Convert WAV to FLAC |
All Supported Video Formats
Modern Web Formats
MP4 Conversions
MP4 - Universal video format, excellent compatibility, good compression
- MP4 to WebM - Modern web format
- MP4 to AVI - Legacy compatibility
- MP4 to MOV - Apple ecosystem
- MP4 to MKV - High-quality container
- MP4 to WMV - Windows format
- MP4 to FLV - Flash video
- MP4 to 3GP - Mobile format
- MP4 to GIF - Animated image
- MP4 to WEBM - Open web standard
WebM Conversions
WebM - Open web format, excellent compression, HTML5 standard
- WebM to MP4 - Universal compatibility
- WebM to AVI - Legacy format
- WebM to MOV - Apple format
- WebM to MKV - Matroska container
- WebM to FLV - Flash format
- WebM to WMV - Windows format
- WebM to 3GP - Mobile format
- WebM to GIF - Animated image
Professional & High-Quality Formats
MKV Conversions
MKV - Matroska container, supports multiple tracks, high quality
- MKV to MP4 - Universal compatibility
- MKV to WebM - Web format
- MKV to AVI - Legacy compatibility
- MKV to MOV - Apple format
- MKV to WMV - Windows format
- MKV to FLV - Flash format
- MKV to MPEG - Standard format
- MKV to TS - Transport stream
MOV Conversions
MOV - Apple QuickTime format, high quality, professional use
- MOV to MP4 - Universal format
- MOV to WebM - Web standard
- MOV to AVI - Legacy format
- MOV to MKV - High-quality container
- MOV to WMV - Windows format
- MOV to FLV - Flash format
- MOV to M4V - iTunes format
- MOV to GIF - Animated image
Legacy & Specialized Formats
AVI Conversions
AVI - Legacy Windows format, widely supported, large files
- AVI to MP4 - Modern format
- AVI to WebM - Web standard
- AVI to MOV - Apple format
- AVI to MKV - High-quality container
- AVI to WMV - Windows format
- AVI to FLV - Flash format
- AVI to MPEG - Standard format
- AVI to 3GP - Mobile format
WMV Conversions
WMV - Windows Media Video, Microsoft format
- WMV to MP4 - Universal format
- WMV to WebM - Web standard
- WMV to AVI - Legacy format
- WMV to MOV - Apple format
- WMV to MKV - High-quality container
- WMV to FLV - Flash format
- WMV to MPEG - Standard format
FLV Conversions
FLV - Flash Video format, legacy web video
- FLV to MP4 - Modern format
- FLV to WebM - Web standard
- FLV to AVI - Legacy format
- FLV to MOV - Apple format
- FLV to MKV - High-quality container
- FLV to WMV - Windows format
- FLV to MPEG - Standard format
Broadcast & Professional Formats
MPEG Conversions
MPEG - Standard broadcast format, professional use
- MPEG to MP4 - Modern format
- MPEG to WebM - Web standard
- MPEG to AVI - Legacy format
- MPEG to MOV - Apple format
- MPEG to MKV - High-quality container
- MPEG to WMV - Windows format
- MPEG to FLV - Flash format
TS Conversions
TS - Transport Stream, broadcast and streaming
- TS to MP4 - Universal format
- TS to WebM - Web standard
- TS to AVI - Legacy format
- TS to MOV - Apple format
- TS to MKV - High-quality container
- TS to MPEG - Standard format
Mobile & Specialized Formats
3GP Conversions
3GP - Mobile video format, small file sizes
- 3GP to MP4 - Universal format
- 3GP to WebM - Web standard
- 3GP to AVI - Legacy format
- 3GP to MOV - Apple format
- 3GP to MKV - High-quality container
VOB Conversions
VOB - DVD Video Object, DVD format
- VOB to MP4 - Universal format
- VOB to WebM - Web standard
- VOB to AVI - Legacy format
- VOB to MOV - Apple format
- VOB to MKV - High-quality container
All Supported Audio Formats
Universal Audio Formats
MP3 Conversions
MP3 - Most popular audio format, universal compatibility
- MP3 to WAV - Lossless quality
- MP3 to FLAC - Lossless compression
- MP3 to AAC - Modern format
- MP3 to M4A - Apple format
- MP3 to OGG - Open source
- MP3 to WMA - Windows format
- MP3 to AIFF - Apple lossless
- MP3 to OPUS - Modern codec
WAV Conversions
WAV - Uncompressed audio, highest quality, large files
- WAV to MP3 - Compressed format
- WAV to FLAC - Lossless compression
- WAV to AAC - Modern format
- WAV to M4A - Apple format
- WAV to OGG - Open source
- WAV to WMA - Windows format
- WAV to AIFF - Apple format
High-Quality Audio Formats
FLAC Conversions
FLAC - Free Lossless Audio Codec, perfect quality, smaller than WAV
- FLAC to MP3 - Universal format
- FLAC to WAV - Uncompressed
- FLAC to AAC - Modern format
- FLAC to M4A - Apple format
- FLAC to OGG - Open source
- FLAC to WMA - Windows format
- FLAC to ALAC - Apple lossless
AAC Conversions
AAC - Advanced Audio Coding, better than MP3, modern standard
- AAC to MP3 - Universal format
- AAC to WAV - Lossless quality
- AAC to FLAC - Lossless compression
- AAC to M4A - Apple container
- AAC to OGG - Open source
- AAC to WMA - Windows format
Apple Audio Formats
M4A Conversions
M4A - Apple's AAC container, iTunes standard
- M4A to MP3 - Universal format
- M4A to WAV - Lossless quality
- M4A to FLAC - Lossless compression
- M4A to AAC - Extract codec
- M4A to OGG - Open source
- M4A to WMA - Windows format
ALAC Conversions
ALAC - Apple Lossless Audio Codec, perfect quality
- ALAC to MP3 - Universal format
- ALAC to WAV - Uncompressed
- ALAC to FLAC - Open lossless
- ALAC to AAC - Compressed format
- ALAC to M4A - Apple container
Open Source & Alternative Formats
OGG Conversions
OGG - Open source format, good compression, patent-free
- OGG to MP3 - Universal format
- OGG to WAV - Lossless quality
- OGG to FLAC - Lossless compression
- OGG to AAC - Modern format
- OGG to M4A - Apple format
- OGG to WMA - Windows format
OPUS Conversions
OPUS - Modern codec, excellent compression, low latency
- OPUS to MP3 - Universal format
- OPUS to WAV - Lossless quality
- OPUS to FLAC - Lossless compression
- OPUS to AAC - Modern format
- OPUS to OGG - Open container
Legacy & Specialized Audio Formats
WMA Conversions
WMA - Windows Media Audio, Microsoft format
- WMA to MP3 - Universal format
- WMA to WAV - Lossless quality
- WMA to FLAC - Lossless compression
- WMA to AAC - Modern format
- WMA to M4A - Apple format
AIFF Conversions
AIFF - Audio Interchange File Format, Apple's WAV equivalent
- AIFF to MP3 - Universal format
- AIFF to WAV - Cross-platform
- AIFF to FLAC - Lossless compression
- AIFF to AAC - Modern format
- AIFF to M4A - Apple format
How It Works
Privacy-First Processing
- No file uploads - Processing happens in your browser
- No data collection - Files never leave your device
- No file size limits - Convert files of any size
- No registration - Use all tools immediately
Advanced Features
- Batch conversion - Convert multiple files at once
- Quality settings - Adjust bitrate, resolution, and compression
- Format options - Configure codecs and containers
- Preview - See/hear results before downloading
- Metadata preservation - Keep title, artist, and other info
Browser Compatibility
- Modern browsers - Chrome, Firefox, Safari, Edge
- WebAssembly support - For advanced media processing
- Hardware acceleration - When available for faster conversion
Tips for Best Results
Choosing Video Formats
- MP4 - Best universal compatibility, social media
- WebM - Modern web, smaller files, open source
- MKV - High quality, multiple tracks, archival
- MOV - Apple ecosystem, professional editing
- AVI - Legacy compatibility, older devices
Choosing Audio Formats
- MP3 - Universal compatibility, streaming, portable
- FLAC - Lossless quality, music archival
- AAC - Modern compression, better than MP3
- WAV - Uncompressed, professional audio
- OGG - Open source, good compression
Quality Considerations
- Lossless formats (FLAC, WAV, ALAC) - Perfect quality, larger files
- Lossy formats (MP3, AAC, OGG) - Smaller files, some quality loss
- Video bitrate - Higher = better quality but larger files
- Audio bitrate - 320kbps MP3 ≈ CD quality
File Size Optimization
- Video: Use H.264/H.265 codecs for best compression
- Audio: 128-192kbps for music, 64-96kbps for speech
- Container choice: MP4/M4A generally most efficient
- Resolution: Match your display/playback needs
Format Compatibility Guide
Video Compatibility
| Format | Web | Mobile | TV/Streaming | Editing |
|---|---|---|---|---|
| MP4 | ✅ Excellent | ✅ Excellent | ✅ Excellent | ✅ Good |
| WebM | ✅ Excellent | ✅ Good | ⚠️ Limited | ⚠️ Limited |
| MKV | ⚠️ Limited | ⚠️ Limited | ✅ Good | ✅ Excellent |
| MOV | ⚠️ Limited | ✅ iOS | ⚠️ Limited | ✅ Excellent |
| AVI | ⚠️ Limited | ❌ Poor | ⚠️ Limited | ✅ Good |
Audio Compatibility
| Format | Web | Mobile | Streaming | Quality |
|---|---|---|---|---|
| MP3 | ✅ Excellent | ✅ Excellent | ✅ Excellent | ✅ Good |
| AAC | ✅ Excellent | ✅ Excellent | ✅ Excellent | ✅ Very Good |
| FLAC | ✅ Good | ✅ Good | ⚠️ Limited | ✅ Perfect |
| WAV | ✅ Good | ✅ Good | ⚠️ Limited | ✅ Perfect |
| OGG | ✅ Good | ⚠️ Limited | ⚠️ Limited | ✅ Very Good |
Frequently Asked Questions
Is my data safe?
Yes! All conversions happen in your browser. Files are never uploaded to our servers, ensuring complete privacy and security.
Are there file size limits?
No file size limits! Since processing happens locally, you can convert files of any size your device can handle.
Which formats should I use for the web?
Video: MP4 (H.264) for compatibility, WebM for modern browsers. Audio: MP3 for compatibility, AAC for quality.
Can I convert multiple files at once?
Yes! Our batch conversion feature lets you convert multiple files simultaneously.
Do you preserve metadata?
Yes! We preserve titles, artists, album info, and other metadata when converting between formats.
What about quality loss?
Converting between lossy formats (MP3→AAC) may reduce quality. For best results, convert from lossless sources when possible.