Free online MKV→AIFF converter. Fast, private, no sign-up.
If something is asking you for a AIFF file and all you have is a MKV, this page is the fix. Drop in your MKV file (a .mkv) and download a ready-to-use AIFF file (a .aiff) — no software to install, no account to create, and no watermark on the output.
MKV (Matroska) is a flexible open container that can hold almost any codec plus multiple audio tracks and subtitles, popular for archiving.
AIFF is an audio format. Converting it trades off file size, quality and compatibility to fit where the sound will be played.
Because MKV is video and AIFF is audio, this conversion changes what the file fundamentally is — for instance pulling a soundtrack out of a clip, or turning a moving picture into a still. People do it to reuse media in a new context: a podcast from a video, a thumbnail from a frame, a ringtone from a song. Audio is processed with ffmpeg using high-quality encoders (LAME, libopus, libvorbis, FLAC and more), so you get the best possible result for the destination format.
Common reasons: saving a lecture or interview as audio you can play in the background, grabbing the music from a clip, or shrinking a video down to just the part you actually need.
Privacy is the default here. Your MKV file is uploaded over an encrypted connection, converted, downloaded the moment it's ready, and then deleted automatically a short time afterwards. We never keep your files, never build a library of your content, and never make you sign up to download the result.
Ready? Use the converter above, or explore related conversions: turn MKV into a different format, or convert another format into AIFF. Everything on Convert Me Pls is free, unlimited and watermark-free.
Yes. Convert Me Pls is completely free with no sign-up, no file-count limits and no watermarks added to your output.
Your files are uploaded over an encrypted connection, converted, and then deleted automatically a short time afterwards. We never keep your files and never build a library of your content.
We use the best available encoders (libvips, ImageMagick and ffmpeg) at high-quality settings for the cleanest possible result.
Conversions run on our servers and support large files comfortably; very large media is processed in a streaming pipeline.