Professional audio & video file conversion—completely free. Convert MP3, WAV, M4A, AAC, FLAC, and more, plus video formats like MP4 and MOV. Change file type, compress file size, extract audio from video, convert to mono or stereo, adjust sample rate and bitrate, and export in formats optimized for transcription, editing, sharing, or archiving.
Secure uploads
Fast processing
High-quality output
Convert between 20 popular audio and video formats with ease. Supporting MP3, WAV, AAC, FLAC, OGG, WMA, M4A, ALAC, AIFF, OPUS for audio, and MP4, AVI, MOV, MKV, WMV, FLV, WEBM, MPEG, M4V, 3GP for video. Fast, secure, and optimized for quality.
Our file converter supports the 10 most popular audio formats and 10 most popular video formats, giving you maximum flexibility for all your conversion needs.
Whether you need to convert audio for music production, podcasting, or personal use, or video for web publishing, social media, or device compatibility, we have you covered with the most widely-used and trusted formats in the industry.
Best for:
Cross-platform compatibility
Device-specific requirements
Quality optimization
File size reduction
💡 Tip
Choose MP3 for audio or MP4 for video when you need maximum compatibility across all devices and platforms.
We use advanced encoding algorithms to ensure your converted files maintain the highest possible quality. Our conversion engine is optimized to preserve audio fidelity and video clarity throughout the process.
For audio conversions, we support bitrates up to 320kbps for lossy formats and full lossless conversion for formats like FLAC, WAV, ALAC, and AIFF. Sample rates up to 192kHz are preserved when converting between compatible formats.
For video conversions, we maintain original resolution and framerate while optimizing compression for your target format. You can convert between formats while preserving HD and 4K quality where the format supports it.
Our intelligent conversion process analyzes your source file and automatically selects optimal settings to balance quality and file size for your target format.
Best for:
Professional media production
Archive preservation
High-fidelity music
HD/4K video content
💡 Tip
For best quality retention, convert from lossless to lossless formats (e.g., WAV to FLAC) or from higher to lower compression.
MP3 offers universal compatibility and small file sizes, perfect for music libraries, podcasts, and sharing. AAC provides better quality than MP3 at similar bitrates and is the standard for Apple devices and YouTube.
WAV and AIFF are uncompressed formats ideal for professional audio work, mastering, and archival. FLAC and ALAC provide lossless compression, reducing file size while maintaining perfect audio quality.
OGG Vorbis is an open-source alternative to MP3 with better quality at lower bitrates. WMA is optimized for Windows systems, while M4A offers excellent quality for iTunes and Apple ecosystems.
OPUS is a modern codec offering superior quality and efficiency for streaming and VoIP applications, making it ideal for web-based audio and voice communications.
Best for:
Music production
Podcast publishing
Audio archiving
Streaming services
💡 Tip
Use FLAC for archival and critical listening, MP3 for general use, and OPUS for web streaming and real-time communications.
MP4 is the most versatile video format, compatible with virtually all devices, browsers, and platforms. It uses H.264 or H.265 compression for excellent quality at reasonable file sizes.
MOV is QuickTime's native format, ideal for Mac users and video editing in Final Cut Pro. MKV is an open-source container supporting multiple audio tracks, subtitles, and ultra-high quality.
WEBM is optimized for web playback with excellent compression, while AVI offers broad Windows compatibility. WMV provides efficient compression for Windows Media Player and Microsoft ecosystems.
FLV remains useful for legacy web streaming, MPEG is the broadcast standard, M4V is iTunes-optimized video, and 3GP is designed for mobile devices with limited storage and bandwidth.
Best for:
Web publishing
Social media content
Video editing projects
Device compatibility
💡 Tip
Use MP4 for general sharing, MOV for Mac/editing workflows, WEBM for web, and 3GP for mobile-optimized delivery.
Our conversion engine is optimized for speed without compromising quality. Most conversions complete in a fraction of the original file's duration, allowing you to process multiple files quickly.
We use hardware acceleration when available to leverage your device's GPU for faster video encoding and decoding. This dramatically reduces conversion time for video files while maintaining quality.
The system intelligently manages resources to provide the fastest conversion speed while keeping your device responsive. Progress tracking keeps you informed throughout the process with accurate time estimates.
File size impacts conversion time - larger files naturally take longer, but our efficient algorithms ensure you're not waiting unnecessarily. Even files up to 500MB convert in reasonable timeframes.
Best for:
Batch processing workflows
Time-sensitive projects
Large media libraries
Quick format testing
💡 Tip
For fastest results, convert to formats with similar or less compression than your source (e.g., MP3 to AAC is faster than MP3 to FLAC).
Different formats offer different compression ratios, allowing you to balance quality against file size. Lossy formats like MP3, AAC, and MP4 create smaller files, while lossless formats preserve perfect quality at larger sizes.
Converting to compressed formats can reduce file sizes by 50-90% compared to uncompressed audio (WAV, AIFF) or video, making files easier to share, store, and stream without noticeable quality loss.
Our converter supports files up to 500MB, accommodating everything from short audio clips to feature-length videos. Large files are processed efficiently with progress tracking and accurate completion estimates.
When converting between compressed formats, file sizes may vary based on encoding efficiency. Modern codecs like OPUS and WEBM often achieve better quality at smaller sizes than older formats.
Best for:
Cloud storage optimization
Bandwidth-limited sharing
Mobile device storage
Email attachments
💡 Tip
Convert uncompressed WAV/AIFF to FLAC for 40-60% size reduction with zero quality loss, or to MP3/AAC for 90% reduction with minimal perceptible loss.
Each format in our converter has specific device and platform compatibility strengths. MP3 and MP4 work everywhere, while others excel on specific platforms or use cases.
Apple devices and software prefer AAC, M4A, ALAC, MOV, and M4V formats. Windows systems work well with WMA, WMV, and AVI. Android devices support most formats but excel with MP3, AAC, MP4, and 3GP.
Web browsers have varying format support: MP4 and WEBM are universally supported for video, while MP3, AAC, and OPUS are standard for audio. OGG has good support in modern browsers.
Professional software typically prefers uncompressed or lossless formats (WAV, AIFF, FLAC) for editing, while distribution favors compressed formats (MP3, AAC, MP4) for efficiency.
Best for:
Multi-device workflows
Platform-specific optimization
Legacy device support
Professional production
💡 Tip
Check your target device/platform requirements before converting. When in doubt, MP3 for audio and MP4 for video ensure broadest compatibility.
Musicians and producers can convert between studio formats (WAV, AIFF) and distribution formats (MP3, AAC, FLAC). Video creators can optimize content for different platforms - MP4 for YouTube, MOV for editing, WEBM for web.
Podcasters can convert recordings to MP3 for maximum compatibility or OPUS for efficient web delivery. Content creators can convert between formats to meet platform-specific requirements (Instagram, TikTok, etc.).
Archivists can convert legacy formats (AVI, WMA) to modern standards (MP4, FLAC) for long-term preservation. Businesses can optimize media libraries for storage efficiency without quality loss.
Personal users can convert media for specific devices - 3GP for older phones, M4A for iPhones, WMA for Windows devices - ensuring their media collection plays anywhere.
Best for:
Content creation
Media archiving
Device optimization
Platform publishing
💡 Tip
Match your output format to your primary use case: lossless for editing/archiving, compressed for sharing/streaming, platform-specific for publishing.
Our converter is designed for simplicity and efficiency with a straightforward one-file-at-a-time workflow. Upload your file, select your desired output format from our grid of 20 options, and convert.
The interface clearly displays all available audio and video formats organized by type, making it easy to choose the right format for your needs. Each format card shows format details to help you make informed decisions.
Preview your converted file before downloading to ensure it meets your expectations. The built-in player supports both audio and video playback with comparison options.
Once satisfied, download your converted file with a single click. Files are automatically deleted from our servers after processing for your security and privacy.
Best for:
Quick conversions
Single-file processing
Learning format differences
Testing output quality
💡 Tip
For processing multiple files, simply convert one at a time. Each conversion is fast and efficient with clear progress tracking.
Your files are encrypted during upload and processing to ensure complete privacy. We use industry-standard encryption protocols to protect your media throughout the conversion process.
All uploaded files and conversions are automatically deleted from our servers immediately after you download your converted file or within 24 hours, whichever comes first. We never store your media long-term.
No user accounts or registration required - simply upload, convert, and download. We don't track what files you convert or store any information about your conversions beyond temporary processing needs.
The conversion process happens securely on our servers, but your files never leave the secure processing environment. Files are not shared, analyzed, or used for any purpose other than your requested conversion.
Best for:
Sensitive media
Confidential content
Privacy-conscious users
Professional projects
💡 Tip
Your files are automatically deleted after processing. Download your converted files promptly to ensure availability.
Frequently Asked Questions
Common questions about audio and video file conversion
Upload your audio file (MP3, WAV, AAC, FLAC, OGG, WMA, M4A, ALAC, AIFF, or OPUS) to our converter, select your desired output format from the audio formats grid, and click "Convert file". The conversion process typically takes seconds to minutes depending on file size. Once complete, preview and download your converted file. Our converter supports all major audio formats and maintains high quality throughout the conversion process.
Upload your video file (MP4, AVI, MOV, MKV, WMV, FLV, WEBM, MPEG, M4V, or 3GP) to our converter, select your desired output format from the video formats grid, and click "Convert file". The tool automatically detects whether you uploaded audio or video and shows all compatible formats. Video conversion preserves your original resolution and quality while optimizing for your chosen format. Download your converted video once processing is complete.
Upload your MP3 file to the converter, select WAV from the audio formats section, and click "Convert file". WAV is an uncompressed format that will result in a larger file size than MP3, but note that converting from a lossy format (MP3) to lossless (WAV) won't improve the audio quality beyond the original MP3 – it just changes the container. For best quality preservation, always start with the highest quality source file available. WAV format is ideal for audio editing and professional production work.
Upload your WAV file, select MP3 from the audio formats grid, and convert. This conversion will significantly reduce file size (typically by 90% or more) by applying lossy compression. MP3 is ideal for sharing, storage, and playback on most devices while maintaining good audio quality. The converter automatically selects optimal MP3 encoding settings to balance quality and file size. MP3 format offers universal compatibility across all devices and platforms.
Upload your MP4 file, select AVI from the video formats section, and click "Convert file". AVI (Audio Video Interleave) is a popular Windows-compatible format that works well with many video editing programs. The conversion maintains your video quality and resolution while changing the container format. AVI files may be larger than MP4 due to less efficient compression, but they offer excellent compatibility with Windows systems and older software.
Upload your video file in any supported format (AVI, MOV, MKV, WMV, FLV, WEBM, MPEG, M4V, or 3GP), select MP4 from the video formats grid, and convert. MP4 is the most universally compatible video format, working on virtually all devices, browsers, and platforms including smartphones, tablets, computers, smart TVs, and web players. The conversion optimizes your video for broad compatibility while maintaining quality. MP4 is the recommended format for sharing videos online and across different devices.
Upload your FLAC file (a lossless audio format), select MP3 from the audio formats, and convert. This reduces file size dramatically while maintaining good audio quality for most listening purposes. FLAC files are typically 2-3x larger than MP3 because they preserve perfect audio quality, but MP3 provides excellent quality at much smaller sizes. Use this conversion when you need to save storage space, share files more easily, or ensure compatibility with devices that don't support FLAC.
Upload your MOV file (QuickTime format commonly used on Mac), select MP4 from the video formats, and convert. MOV files often have compatibility issues on non-Apple devices, while MP4 works everywhere. The conversion maintains video quality while creating a file that plays on Windows, Android, web browsers, and most video players. This is especially useful when sharing videos with people who may not use Apple devices or when uploading to websites and social media platforms.
Upload your AAC file, select MP3 from the audio formats grid, and convert. Both AAC and MP3 are lossy formats, so the conversion won't significantly affect quality, but MP3 offers broader compatibility with older devices and software. AAC is common in iTunes and Apple devices, while MP3 is more universal. Use this conversion when you need maximum compatibility across all devices or when working with systems that don't fully support AAC format.
Upload your audio file in any format, select FLAC from the audio formats section, and convert. FLAC (Free Lossless Audio Codec) preserves perfect audio quality while compressing file size by about 40-60% compared to uncompressed formats like WAV. Note that converting from lossy formats (MP3, AAC) to FLAC won't improve quality – it just changes the container. FLAC is ideal for archiving music collections, audiophile listening, and situations where you want to preserve maximum quality for future use or editing.
Upload your MKV file, select MP4 from the video formats, and convert. MKV (Matroska Video) is an excellent open-source format that supports multiple audio tracks and subtitles, but it has limited compatibility with some devices and players. MP4 offers broader device support while maintaining quality. This conversion is useful when you need to play videos on devices that don't support MKV, such as many smartphones, tablets, smart TVs, and web browsers.
Upload your video file in any supported format, select WEBM from the video formats grid, and convert. WEBM is an open, royalty-free video format designed specifically for web use, offering excellent compression and quality. It's well-supported by modern web browsers and is ideal for embedding videos on websites. WEBM typically produces smaller file sizes than many other formats while maintaining good quality, making it perfect for web streaming and reducing bandwidth usage.
Upload your OGG file (Ogg Vorbis), select MP3 from the audio formats, and convert. OGG is an open-source format with good quality, but MP3 has much broader device compatibility. While both are lossy formats, MP3 is supported on virtually every audio player, smartphone, and device, making it the better choice for general distribution. Use this conversion when you need to ensure your audio plays on all devices without compatibility issues.
Upload your M4A file (common in iTunes and Apple Music), select MP3 from the audio formats, and convert. While M4A files offer good quality and work well on Apple devices, they can have compatibility issues on Android phones and older devices. MP3 ensures your audio works on all Android devices, Windows systems, and virtually any audio player. This conversion is essential when sharing music with Android users or using audio on non-Apple platforms.
Upload your video file (up to 500MB), select your desired output format, and convert. Our converter uses advanced encoding algorithms to maintain maximum quality during conversion. For best quality retention, convert to formats with similar or better compression efficiency – for example, MP4 and WEBM offer excellent quality at smaller file sizes. Note that converting from a heavily compressed format to a less compressed one won't improve quality beyond the original, so always start with the highest quality source available.
Upload your audio file, select M4A or AAC from the audio formats (both are optimized for Apple devices), and convert. M4A is the default format for iTunes and Apple Music, offering excellent quality and seamless integration with the Apple ecosystem. AAC provides slightly better compression than MP3 at similar quality levels. These formats work perfectly with iPhone, iPad, iPod, Apple Music, and iTunes. You can also use ALAC if you want lossless quality on Apple devices.
Upload your video and select MP4 from the video formats – it's the most widely accepted format across all social media platforms including YouTube, Facebook, Instagram, Twitter, TikTok, and LinkedIn. MP4 offers excellent quality, reasonable file sizes, and universal compatibility. The converter optimizes your video while maintaining resolution and quality suitable for online sharing. For best results on social media, MP4 with H.264 encoding provides the ideal balance of quality, file size, and platform compatibility.
Upload your lossless audio file and select your desired lossless format from the audio grid. Converting between lossless formats (WAV, FLAC, ALAC, AIFF) preserves perfect audio quality – the only differences are file size and compatibility. FLAC and ALAC offer compression (smaller files), while WAV and AIFF are uncompressed. Choose FLAC for universal lossless, ALAC for Apple devices, WAV for maximum compatibility in professional audio work, or AIFF for Mac-based audio production.
Upload your 3GP file (common in older mobile phone recordings), select MP4 from the video formats, and convert. 3GP is an older mobile video format with limited compatibility and generally lower quality. Converting to MP4 modernizes your video, improves compatibility with all devices and platforms, and enables better quality playback. This conversion is essential for archiving old mobile videos, sharing them online, or playing them on modern devices and computers.
Upload your audio file and select WAV or AIFF for professional work. These uncompressed formats are industry standards in music production, recording studios, and audio editing software. They preserve perfect quality and are compatible with all professional DAWs (Digital Audio Workstations) like Pro Tools, Logic Pro, Ableton, FL Studio, and others. Use WAV for cross-platform compatibility or AIFF for Mac-focused workflows. For lossless compression with some file size savings, FLAC is also suitable for archiving and storage.
Upload your audio file and convert to MP3, AAC, or OPUS formats. MP3 at 192-320kbps provides excellent quality at much smaller sizes than lossless formats. AAC offers slightly better quality than MP3 at the same bitrate and is great for Apple ecosystems. OPUS is a modern codec that achieves superior quality at lower bitrates, ideal for streaming and web use. These lossy formats reduce file size by 80-95% compared to WAV while maintaining perceptually excellent quality for most listening purposes.
Upload your AVI file, select MOV from the video formats, and convert. MOV is the native QuickTime format and works seamlessly with Mac systems, Final Cut Pro, iMovie, and other Apple video editing software. While AVI is Windows-oriented and can have compatibility issues on Mac, MOV ensures smooth playback and editing on macOS. This conversion is essential when working with video projects on Mac or sharing videos with Mac users who need to edit them.
Upload your WMA file (Windows Media Audio), select MP3 or AAC from the audio formats, and convert. WMA is a Windows-specific format with limited compatibility on Apple devices, mobile phones, and many audio players. Converting to MP3 ensures universal compatibility across all devices and platforms. Use AAC if you primarily use Apple devices. This conversion is necessary when sharing audio with users on different platforms or when you need files that work everywhere.
Upload your video file and select WMV or AVI from the video formats for optimal Windows Media Player compatibility. WMV (Windows Media Video) is specifically optimized for Windows systems and integrates perfectly with Windows Media Player. AVI also works excellently on Windows. However, if you need broader compatibility beyond Windows, consider using MP4, which works on Windows and all other platforms. Choose WMV for Windows-only distribution or MP4 for cross-platform sharing.
Upload your audio file and select OPUS from the audio formats. OPUS is a modern, highly efficient codec that delivers superior quality at lower bitrates compared to MP3 and AAC, making it ideal for streaming, VoIP, web audio, and bandwidth-limited applications. It's well-supported in modern web browsers and streaming platforms. Convert to OPUS when you need the best quality-to-file-size ratio for online streaming, real-time communications, or reducing bandwidth usage while maintaining excellent audio quality.
Transcription
by a Professional Transcriber & Editor
Captions (FCC/SDH)
by a Professional Captioner
Transcript Editing & Proofreading
by a Professional Editor
Translation (text/audio/images)
by a Professional Translator
Subtitles
by a Professional Subtitler
Video Description (AD)
by a Professional Describer
Secure uploads
Fast processing
High-quality output
