Audio and video formats, in 38+ languages

Upload the file you already have, in the language it was spoken. Pick a format or a language for the details that matter.

File formats

Audio or video, up to 5 GB per file. Not sure which you have? The letters after the dot in the file name tell you.

.aac AAC to text
Radio and streaming captures, some dictation devices and exports from audio editors.
.flac FLAC to text
Archival interview collections, oral history projects, music libraries and high-quality recorder exports.
.m4a M4A to text
Apple Voice Memos, GarageBand exports, QuickTime audio recordings and many Android recorder apps.
.mp3 MP3 to text
Podcast downloads, digital voice recorders, call recorders and audio exported from editing software.
.ogg, .opus OGG / Opus to text
Voice messages from some chat apps, VoIP recordings, game and community tools, and Linux recorders.
.wav WAV to text
Field recorders, studio sessions, audio interfaces, and conference systems that save raw audio.

.mkv MKV to text
OBS Studio recordings, ripped or archived video, and exports from some editing and streaming tools.
.mov MOV to text
iPhone and iPad video, QuickTime Player screen recordings on a Mac, and some cameras.
.mp4 MP4 to text
Screen recordings, meeting platform downloads, phone and camera video, and exported webinars.
.webm WebM to text
Browser-based recorders, Chrome and Firefox screen capture tools, and web apps that record from the microphone.

38+ languages. Choose the spoken language when you upload. Each page covers the script, the dialects and what to check in the transcript.

Free includes a few transcriptions a day, in any of these formats and languages. No card needed.