About .opus files
Opus at even low bitrates keeps speech intelligible, and transcription quality holds up. Discord recordings and VoIP call exports are typically Opus.
Files up to 10 hours or 5 GB each. The box above takes files up to 500 MB; larger files continue on the upload page.
Where .opus files come from
Discord calls, VoIP recordings, messaging-app audio.
What you get
Long recordings
One file up to 10 hours or 5 GB — no need to split it first.
Word-level timestamps
Every word is timed — accurate SRT/VTT subtitles come straight out.
99+ languages
The language is auto-detected; mixed-language recordings are handled per sentence.
Every export
TXT, SRT, VTT, DOCX and JSON on every pack — no format paywall.
Speakers named
Speakers are identified and named in the summary, key quotes and chapters.
Questions people ask
Do I need to convert .opus to MP3 first?
No. Upload the .opus file exactly as it is — decoding happens server-side, and lossless or original-codec input transcribes better than a re-compressed MP3 anyway.
Is there a size or length limit for .opus files?
Files up to 10 hours or 5 GB each are accepted. The box on this page takes files up to 500 MB; larger files continue on the upload page.
How much does it cost?
The summary of any recording is free to read. A pack from $4 (500 minutes) opens the full transcript; larger one-time packs are $8 for 1,000 minutes, $12 for 2,000 minutes, $24 for 5,000 minutes, and credits never expire. Workspace is $19/month.
Can I paste a link instead of uploading?
Yes — paste a direct link or a page URL and the audio is fetched server-side, which is faster than uploading from a slow connection.
Related: Audio to text · MP3 to text · Video to text · Subtitle generator
Comparing prices?
If cost and turnaround decide it: see transcription services from $4, cheap transcription services and the real cost per hour and the best transcription services side by side.