Convert OGA to MP3.
OGA is the audio that WhatsApp, Telegram and Signal save voice notes in, and half your apps refuse to open it. Turn it into MP3 that plays on absolutely everything.
Inside The Conversion
See The Input. Inspect The Result.
A real OGA to MP3 conversion using a sample file. Compare the files below, then use the converter above with your own file.
Recorded Sample
Converted on the server in this run.
gymnopedie-no-1.oga
Waveform Preview, 20 s of audio
gymnopedie-no-1.mp3
Waveform Preview, 20 s of audio
Previews show the sample files from this recorded conversion. Choose Input or Result to focus on one file.
View The Original Run Capture
A screenshot of the completed run, preserved in its original theme. The comparison above adapts to your current theme.
Why won't my voice note open?
When you export a chat or save a voice message, messaging apps hand you a .oga file. Inside it's usually Opus audio in an Ogg container, a genuinely good, modern codec. The problem is reach: Windows Media Player, a lot of phones, most email clients and plenty of audio editors simply don't know what to do with it. MP3 is the opposite, old and a little less efficient, but it plays on every device and app ever made.
A note on quality
This is a re-encode between two lossy formats, so we keep the bitrate high to stay faithful. For speech, which is what voice notes are. The difference is inaudible. If you only need to play the note somewhere it currently won't open, this is exactly the conversion you want.
Need the words, not the audio?
Hand the MP3 to TranscriptAI and get a clean transcript, summary and notes, handy when a five-minute voice note could have been two sentences.
How it works
- 01
Add your OGA
Drop one or many voice notes, or click to browse. Private by default.
- 02
Convert with a local engine
OGA becomes MP3 with ffmpeg, no paid API in the loop.
- 03
Download or transcribe
Grab your MP3 (or a zip of many), or send it straight to TranscriptAI for a transcript.
Opens the WhatsApp/Telegram voice-note format
Plays on every phone, player and editor
Private uploads, auto-deleted after 1 hour
Batch convert a whole chat export at once
No watermark, no signup to try
Transcript-ready output
OGA to MP3: re-encoded
MP3 is a compressed, lossy audio format, so this re-encodes the sound and the file gets smaller. Every lossy re-encode sheds a little quality, so convert from the best source you have rather than chaining conversions.
Need more than a conversion?
Send your audio or video to TranscriptAI to generate a transcript, summary, structured notes, flashcards, quiz questions or action items: automatically.
Common questions
What is an OGA file?+
OGA is an Ogg-container audio file. The format messaging apps use for voice notes. It's really just Opus or Vorbis audio with a .oga (or .ogg) extension, which is why some players won't open it.
Is it free?+
Yes. Convert OGA to MP3 free. No signup and no watermark. Free covers 10 server conversions a day, up to 100 MB a file. Pro removes the daily limit and raises the file limit to 2 GB.
Is my file private?+
Uploads go to a private bucket, are converted, and auto-delete after 1 hour. Your voice notes never touch a third-party converter.
Can I convert a whole WhatsApp export?+
Yes. Drop all the .oga files at once and download them back as a single zip.