MP3 to SRT Converter: Make Subtitles from an MP3
Upload an MP3 and download a timed SRT subtitle file
No account? The first 30 minutes of any file are free. Create a free account for premium on your first file.
Turn an MP3 into an SRT subtitle file: upload the audio, wait for the transcript, then download it as SRT with every line timed to the recording. Use it for podcast clips, audiograms and any video built on that audio track.
Why convert MP3 to SRT here
SRT preselected
Files you start on this page open the export with SRT already chosen, so the download is one click once the transcript is ready.
Speakers and timestamps
Every line keeps its time in the recording. Speaker labels can be kept at the start of each cue or turned off before you download.
Edit before you export
Correct names and words in the transcript editor, then download. Click any line to hear that moment.
Every other format too
The same transcript exports to TXT, Word, PDF, SRT, VTT, CSV and JSON. Paid plans, the Weekly Pass and your first file can also translate it.
How it works
Upload your MP3 file
An MP3 is read directly, with no conversion step on your side.
Get the transcript
Speech is transcribed with timestamps, and with speaker labels on the premium engine. Check it in the editor.
Download SRT
SRT comes with your first file, the Weekly Pass or a paid plan.
MP3 to SRT: what you get
MP3 to SRT in three steps
- Upload your MP3 file. The spoken language is detected for you, or pick it from the list.
- Wait for the transcript. Progress shows on the page.
- Open Export. Files started on this page open with SRT selected. Set the options and download your SRT subtitle file.
What is an SRT file?
SRT (SubRip) is the most widely accepted subtitle format: a plain text file of numbered cues, each with a start time, an end time and the words spoken in that span.
- YouTube, Vimeo and Facebook caption uploads
- Video editors such as Premiere Pro, DaVinci Resolve and Final Cut Pro
- VLC and most desktop players, as a sidecar file next to the video
What is inside the SRT file
Each cue in the file is one stretch of speech from the transcript, numbered from 1, with times in hours, minutes, seconds and milliseconds. A blank line separates one cue from the next.
The cues follow the transcript as the engine split it, one cue per spoken segment. Long segments stay as one cue, so if your player needs short lines, split them in the subtitle editor before you publish.
| Line in the file | What it holds |
|---|---|
| 1 | Cue number |
| 00:00:00,500 --> 00:00:02,100 | Start and end time, with a comma before the milliseconds |
| Hello everyone. | The words, with the speaker name in front when speaker labels are on |
Edit an SRT file in the browserConvert SRT to VTTBurn subtitles into the video
What it costs
| You have | What you get |
|---|---|
| No account | The first 30 minutes of any file transcribed, readable on screen |
| A free account | TXT download on every file; your first file, up to 60 minutes, downloads in every format |
| Weekly Pass | $9.99 for 20 hours over 7 days, every export format |
| Pro | $14.99/month or $99.99/year, full-length files and every export format |
MP3 to SRT vs typing it out by hand
Why upload-and-go beats manual transcription every time.
| Capability | CATT | Manual transcription |
|---|---|---|
| Time to first draft | Minutes per file | 8 to 10 hours per audio hour |
| Accuracy | 99% on clear audio | Depends on the typist |
| Speaker detection | Automatic | Tagged by hand |
| Languages | 99+ supported | Whatever you speak |
| Exports | TXT, DOCX, PDF, SRT, VTT, JSON | Whatever you build by hand |
| Cost | Free for the first 30 minutes | Your time, every time |
Simple pricing
Free for files up to 30 minutes, no card needed. Paid plans start at $14.99.
Cancel anytime. See all plans
Frequently asked questions
Upload your MP3 file on this page. When the transcript is ready, open Export, where SRT is already selected for files started here, and download. Speaker labels can be kept at the start of each cue or turned off before you download.
The transcript is free to start: the first 30 minutes of any file are transcribed with no signup. Downloading this format needs your first file on a free account, the Weekly Pass ($9.99 for 20 hours over 7 days), a minutes top-up or a paid plan (Pro is $14.99/month, or $99.99/year). The first file on a free account, up to 60 minutes and given once, downloads in every format.
An MP3 is read directly, with no conversion step on your side. Accepted formats include MP3, WAV, M4A, FLAC, AAC, OGG, OPUS, WMA and more.
Yes. Open the transcript in the editor, correct names and words, rename speakers, then export. Automatic transcripts can miss words in noisy audio or with unusual names, so a quick check before you publish is worth it.
The spoken language is detected automatically, or you can pick it before you start for the most reliable result. English, Spanish, French, German, Portuguese, Japanese, Arabic, Hindi and many more are supported.
Yes. One transcript exports to every format: TXT, Word (DOCX), PDF, SRT, VTT, CSV and JSON. Formats other than TXT come with the first file, the Weekly Pass or a paid plan.
Yes, when the video uses the same audio from the start. The SRT times follow the MP3, so if the video adds an intro or the audio was trimmed, shift the timing in the subtitle editor before you upload the file.
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