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MP3 to Text
Convert an MP3 to text for free — locally, in your browser, with no upload and no sign-up.
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Good to know
Convert MP3 to text without uploading anything
Pick an MP3 and the audio is decoded and transcribed on your own device. Nothing is sent anywhere, which keeps recordings of calls, lectures and interviews private.
From MP3 transcription to subtitles
Timestamps are produced alongside the text, so the same MP3 transcription can be exported as an SRT or VTT subtitle file for video. That matters when the MP3 started life as the audio track of something you are about to publish.
Where MP3s usually come from
The common sources each have their own quirks. Call and meeting recordings are often mono and heavily compressed, which is fine for speech as long as everyone was near a microphone. Lecture recordings made from the back of a room are the hardest case — distance costs more accuracy than bitrate does. Podcast exports are the easiest, because they are already mixed for voice. Voice memos sit in between and usually transcribe well.
Does bitrate matter?
Less than people expect. Speech recognition models downsample to 16 kHz anyway, so a 320 kbps file carries no useful extra information over a 128 kbps one for this purpose. What actually costs accuracy is microphone distance, background noise, overlapping voices and clipping. If you are choosing how to record, prioritise getting the mic close over raising the bitrate.
Turning a long MP3 into something searchable
The main reason to transcribe a lecture or a meeting recording is that audio cannot be searched. A two-hour MP3 is effectively opaque — finding the one exchange that mattered means scrubbing through it. The same recording as text is searchable in seconds, quotable without retyping, and can be skimmed by someone who was not there. Exporting with timestamps keeps the link back to the audio, so a search result still tells you where in the recording to listen.
A note on recordings of other people
Recording laws vary by jurisdiction, and some places require every participant to consent rather than just one. Transcription does not change any of that — it makes the recording more useful, and more portable, but the question of whether you were allowed to make it in the first place is unchanged. If a recording was made with consent, transcribing it locally is also the option that keeps the fewest copies in the fewest places.
Frequently asked questions
- How do I convert an MP3 to text?
- Choose the MP3 above and press Transcribe. The text appears in the panel below, ready to copy or export.
- Is there a file size limit?
- There is no server limit because processing is local. Very long files are limited only by your device memory.
- Can I convert other audio formats?
- Yes — WAV, M4A, AAC, OGG and FLAC all work on the audio to text page.
- Does it work on mobile?
- Yes, though long recordings transcribe considerably faster on a desktop browser.
- Will a low-bitrate MP3 transcribe badly?
- Usually not. The model works at 16 kHz regardless, so 128 kbps is plenty. Recording distance and background noise matter far more.
- Can I get timestamps in the text file?
- The plain TXT export is continuous text. If you need timestamps, export SRT or VTT — both carry them.
- Is my MP3 uploaded?
- No. It is read from disk and processed in your browser, and you can confirm that in your browser’s network panel.