MP3 workflow
Transcribe MP3 to text free, right in your browser
Drop an MP3 below and get clean, punctuated text back — no account, no email, no card. The transcriber runs on Nemotron 3.5 ASR, NVIDIA's streaming speech recognition model, and detects the language automatically across 40 locales. Free use covers 3 transcriptions a day, up to 5 minutes and 20 MB per file. Below the tool: the exact steps, MP3-specific tips, and the honest limits.
Your transcript will appear here with punctuation and capitalization.
How do I transcribe an MP3 file to text?
The whole flow happens on this page, in your browser. There is nothing to install and no sign-up wall between you and the transcript.
- Open the transcriber above and upload your MP3, or record straight from the microphone. Files up to 5 minutes and 20 MB work on the free tier.
- Leave language detection on auto, or pick one of the 40 supported locales if you already know what is spoken.
- Choose a mode. Best accuracy is the right default for an uploaded MP3; the faster modes trade a little precision for turnaround.
- Run the transcription, then copy the result or download it as a .txt file. The text arrives already punctuated and capitalized.
Built on Nemotron 3.5 ASR, not a generic engine
Most free MP3 transcription sites compete on a single word: unlimited. What they rarely mention is which model actually does the work. This site is specific about it. Every transcription runs on NVIDIA's Nemotron 3.5 ASR, a 0.6B-parameter cache-aware FastConformer-RNNT streaming model, and the limits are printed on the page before you upload anything.
In practice that means the transcript comes back as readable prose — sentence casing, commas, periods — rather than a lowercase word stream you have to clean up by hand. If you want to see how this model family compares against Whisper on real audio, the comparison guide linked at the bottom of this page walks through the trade-offs.
One thing to be clear about: Nemotron ASR is an independent tool built on the model. It is not affiliated with, sponsored by, or endorsed by NVIDIA.
MP3 tips that actually move accuracy
MP3 is a lossy format, but for speech that almost never matters. What matters is what was recorded in the first place.
- Bitrate matters less than recording quality. A clean 64 kbps voice memo beats a noisy 320 kbps export every time.
- Speech-heavy MP3s work best: podcast episodes, interviews, lectures, voice notes, and meeting recordings.
- Music beds, crosstalk, and heavy room echo hurt every ASR model. If you can export a cleaner cut, do it before uploading.
- Recording longer than 5 minutes? Split it into chunks with any audio editor and transcribe the parts in order.
- Not an MP3? The same transcriber accepts WAV, M4A, AAC, OGG, and OPUS uploads, plus direct microphone recording.
The free tier, spelled out
No trial countdowns and no surprise paywall mid-task. This is exactly what free includes and where the ceiling is.
If you regularly need more than three files a day, Pro is $9 per month for 300 audio minutes, activated with a license key in up to 3 browsers. That is the entire pricing model — see the pricing page for details.
| Free tier | Details |
|---|---|
| Price | $0 — no account, no card |
| Transcriptions | 3 per day per connection |
| File length | Up to 5 minutes per file |
| File size | Up to 20 MB per file |
| Languages | 40 locales with automatic detection |
| Output | Punctuated plain text — copy or .txt download |
Four modes, one honest trade-off
The model streams audio in chunks, and chunk size sets the balance between speed and accuracy. For an uploaded MP3 there is rarely a reason to rush — pick Best accuracy and let it work.
| Mode | Chunk size | Use it for |
|---|---|---|
| Best accuracy | 1.12s | Uploaded MP3s, interviews, anything you will publish |
| Balanced | 0.56s | A good everyday default |
| Faster | 0.32s | Quick drafts when turnaround matters |
| Lowest latency | 0.08s | Live microphone dictation |
Transcribe MP3 to text in 40 languages
You do not need to know what language an MP3 contains. Leave detection on auto and the model identifies it from the audio itself. Coverage spans 40 locales, including English (US and UK), Spanish, French, German, Portuguese, Italian, Japanese, Korean, Mandarin Chinese, Hindi, Arabic, Russian, Vietnamese, Thai, Turkish, and most European languages.
It also follows a speaker who switches languages mid-recording — useful for bilingual interviews and code-switching voice notes. Chinese support means Mandarin (the zh-CN locale).
What this tool will not do (yet)
A short list, stated plainly, because the sites that hide their limits waste your upload.
- No speaker labels. The transcript is one continuous text; it does not tag who said what.
- No subtitle files. Output is plain text, not SRT or VTT — the audio-to-SRT guide linked below explains what subtitle export requires.
- No video uploads. Extract the audio track to MP3 or WAV first, then upload that.
- No batch processing and no public API. One file at a time, in the browser.
- Transcription runs after your audio is submitted — it is not a live caption overlay while you speak.
Frequently asked questions
Is this MP3 to text converter really free?
Yes. You get 3 transcriptions per day per connection, each up to 5 minutes and 20 MB, with no account and no card. If you need more volume, Pro is $9 per month for 300 audio minutes.
Do I need to sign up to transcribe an MP3?
No. There is no registration, no email capture, and no login wall. Open the page, upload the file, get your text. Pro users activate with a Creem license key instead of an account, and one key works in up to 3 browsers.
Can I get timestamps or an SRT subtitle file?
Not yet. The output is punctuated plain text you can copy or download as .txt. Subtitle files need word- or segment-level timestamps, which this version does not export. The audio-to-SRT guide on this site explains that gap honestly instead of pretending it is not there.
How accurate is the transcription?
Your audio quality matters more than anything else. The model is NVIDIA's Nemotron 3.5 ASR, a streaming FastConformer-RNNT architecture, and on clear single-speaker speech it produces text that needs little cleanup. Noisy, echoey, or music-heavy MP3s degrade any ASR system. Use Best accuracy mode for uploads.
My MP3 is longer than 5 minutes. What do I do?
Split it. Any free audio editor can cut an MP3 into chunks under 5 minutes and 20 MB; transcribe them in order and join the text afterwards. Pro raises your monthly volume to 300 audio minutes, and files still upload one at a time.
Can it transcribe languages other than English?
Yes — 40 locales with automatic language detection, including Spanish, French, German, Japanese, Korean, Mandarin Chinese, Hindi, Arabic, and most European languages. It even follows a speaker who switches language partway through a recording.
Can I transcribe a video file or a YouTube link?
No. The transcriber accepts audio only: MP3, WAV, M4A, AAC, OGG, and OPUS. Export the audio track from your video with a converter first, then upload that file here.
Is this an official NVIDIA product?
No. Nemotron ASR is an independent site that runs speech-to-text on the Nemotron 3.5 ASR model. It is not affiliated with, sponsored by, or endorsed by NVIDIA.