100% local — your file never leaves your browser
MP3 to Text
Convert an MP3 to text for free — locally, in your browser, with no upload and no sign-up.
- Free
- No sign-up
- No watermark
How it works
- 01
Choose the MP3
Pick the file from your device or drag it onto the page. It is read straight from disk by your browser — no upload, no account and no size cap.
- 02
Transcribe on your device
Pick the spoken language and press Transcribe. The first run downloads the speech model once; after that it is cached and starts immediately.
- 03
Copy or export
Copy the text, or download it as TXT. Export SRT or VTT instead when you need the timestamps — for example when the MP3 is the audio track of a video.
Why choose TranscriptSnap
No size cap, because there is no upload
Services that receive your file have to bound what they accept. Nothing is received here, so a two-hour interview and a thirty-second voice memo are handled the same way.
Bitrate is not the thing to worry about
Speech models downsample to 16 kHz regardless, so a 320 kbps file carries no useful advantage over 128 kbps. Microphone distance and background noise decide accuracy — not file quality.
The recording stays on your machine
Call recordings, lectures and interviews are exactly the material worth keeping off other people's servers. The MP3 is read from disk in this tab and never transmitted.
Timestamps when you need them
Plain TXT gives you continuous prose for reading and searching. SRT and VTT carry the timings, which is what you want when the MP3 started life as the audio of a video.
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. The practical difference between SRT and VTT
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.
Does it work without an internet connection?
Yes, once the speech model has been downloaded and cached on the first run. Disconnecting and transcribing anyway is also the quickest way to confirm nothing is being uploaded.
Convert MP3 to text free, locally, with no account
An MP3 transcription is worth having mostly because audio cannot be searched. A two-hour recording is effectively opaque: finding the exchange that mattered means scrubbing through it. The same recording as text is searchable in seconds, quotable without retyping, and readable by someone who was not there. Converting MP3 to text here happens entirely on your own device, which removes both the upload and the meter — there is no per-minute cost for us, so there is no daily limit for you and no sign-up in the way. Export as TXT for reading, or as SRT and VTT when the timings need to travel with the words.