Convert Audio Interchange File Format (.aiff) to Matroska Video (.mkv) online for free. Fast, secure audio conversion with no watermarks or registration.
Upload your .aiff file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mkv file when it's ready.
AIFF is Apple's uncompressed format restricted primarily to the macOS ecosystem, while MKV (Matroska) is the open-source multimedia container embraced by the cross-platform archival community. Converting AIFF to MKV wraps high-quality audio in a container that supports unlimited tracks, chapters, tags, and attachments — making it ideal for multi-language audio archives and complex media libraries managed by Plex, Jellyfin, or Kodi.
MKV handles scenarios AIFF cannot: multiple audio tracks in one file (different languages, commentary tracks), embedded lyrics and subtitles, chapter navigation, and font attachments. If you are building a media archive or feeding content to a server that organizes by MKV, converting AIFF provides the container flexibility needed for complex content packages.
FFmpeg muxes the AIFF PCM stream into a Matroska container, either preserving it as PCM (LPCM in MKV) or encoding to FLAC for compression. MKV supports virtually every audio codec: PCM, FLAC, AAC, Vorbis, Opus, AC3, DTS, and more. Track metadata includes language codes (ISO 639-2), default/forced flags, and track names. MKV chapter format supports nested chapters with names and UIDs.
With PCM mode: bit-for-bit identical to AIFF. With FLAC encoding: lossless, identical when decoded. Both options preserve full AIFF quality within the more capable MKV container.
| Device | AIFF | MKV |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
AIFF to MKV brings Apple's pristine audio into the open-source ecosystem with vastly superior container capabilities. Use it for archival, multi-track, and media server workflows.
Безопасная передача
Загрузки зашифрованы по HTTPS
Конфиденциальность прежде всего
Файлы автоматически удаляются после обработки
Без регистрации
Начните конвертировать мгновенно
Работает везде
Любой браузер, любое устройство
| No |
| Характеристика | AIFF | MKV |
|---|---|---|
| Полное название | Audio Interchange File Format | Matroska Video |
| Расширение | .aiff | .mkv |
| Лучше всего подходит для | Lossless quality | Multiple audio tracks |