Free online subtitle converter
Upload an MP3, generate accurately timed subtitles, and download a ready-to-use SRT file. Works online with 100+ languages, optional speaker labels, and no credit card required.
Drop audio or video here
MP3, MP4, WAV, M4A, MOV, WebM and more · up to 6 GB each · Free: 3/day, up to 30 minutes per uploaded file. Full transcripts, summaries and editing included.
Record audio
Pause and resume anytime · up to 3 hours
Automatic transcription settings · target 128 kbps
Free: 3/day. Full transcripts, summaries and editing included.
Supported formats: MP3, WAV, M4A, MP4, MOV, WEBM, AAC, FLAC
Private uploads. Files are used to create your transcript and exports.
Free daily transcription tasks included. No credit card required. Your upload stays private and is used only to create your transcript and exports.
Built for audio, video, meetings, podcasts, lectures and interviews.
TXT, DOCX, SRT, VTT for all languages. PDF (basic ASCII only) for plain English text.
Why this tool
Upload once, review the timed transcript, and download a standard SRT subtitle file without converting it elsewhere.
Use free daily transcription tasks in your browser. No software installation or credit card is required.
VoiceScribe aligns subtitle cues to speech and can label different speakers in interviews, podcasts, and conversations.
The recording language is detected automatically. Export the result as SRT or VTT.
How it works
Drag and drop the MP3 into the converter. You can also use WAV, M4A, AAC, FLAC, OGG, and other common audio files.
VoiceScribe detects the spoken language automatically, transcribes the audio and aligns each subtitle cue to the speech.
Check names, wording, and timing in the transcript, then use the primary Download SRT button. VTT, TXT, and DOCX are also available.
Use cases
Convert MP3 podcast clips to SRT before adding captions to short-form video edits.
Create SRT files for narrated content that needs captions on web or LMS players.
Give video editors a timed subtitle file before final picture lock.
Formats
Real audio & subtitle example
This 39-second video excerpt was transcribed in VoiceScribe. Listen to an MP3 extracted from the same video and compare it with the nine subtitle cues exported from that task.
Listen and compare
An English tutorial excerpt. Follow the exported captions as the audio plays, or choose a timestamp to seek. Press play to listen.
English · 39.6 seconds · 9 subtitle cues
Download sample MP3MP3 extracted from the original video. Captions are the unedited VoiceScribe export for that video, not a separate MP3 transcription.
SRT preview — first 3 of 9 cues
1 00:00:00,000 --> 00:00:04,900 welcome back to another video today we're going to dive straight in to davinci 2 00:00:04,900 --> 00:00:09,580 resolve and look at my workflow for editing a documentary now this workflow 3 00:00:09,580 --> 00:00:15,520 can be used obviously for smaller projects for smaller corporate brand films but
The SRT download contains all nine cues exactly as exported. Capitalization, names, and the unfinished final sentence are unchanged. Review wording and timing before publishing your own captions.
Use the downloaded SRT in common publishing and editing workflows, then review timing and compatibility before publishing.
| Platform | Use | Note |
|---|---|---|
| YouTube Studio | Upload subtitles with timing | Review timing after upload before publishing |
| Adobe Premiere Pro | Import captions into an editing project | Keep the SRT file next to the final media export |
| DaVinci Resolve | Add subtitle tracks during editing | Check frame rate and playback alignment |
| Final Cut Pro | Import captions for a video project | Verify compatibility with the installed version |
| CapCut | Add imported captions to short-form videos | Import options can vary by platform and app version |
| VLC | Load subtitles during local video playback | Test the SRT with the final video file before publishing |
Review these details before importing the subtitle file into your final workflow.
Compare names, brands, and specialized vocabulary with the source audio.
Play the recording and confirm each caption appears and disappears with the speech.
Break up dense cues so viewers have enough time to read each caption.
Review adjacent timestamps and correct unintended overlaps.
Keep UTF-8 encoding so supported characters remain intact.
Preview the subtitle file with the finished audio or video and make final adjustments.
Export guide
| Format | Best for | Note |
|---|---|---|
| SRTRecommended | YouTube, video editors, broad subtitle compatibility | Numbered cues with comma-based timestamps; recommended for this workflow |
| VTT | HTML5 players and browser-based video | WebVTT uses a web-oriented syntax and can support additional cue metadata |
| TXT | Reading and searching without subtitle timing | No subtitle cue structure |
| DOCX | Editing and sharing a readable transcript | Not a timed subtitle file |
| PDF (basic ASCII only) | Simple English transcript sharing | Not a subtitle import format |
Comparing transcription tools?
If your workflow starts with an MP3 file instead of a live meeting bot, compare VoiceScribe as an Otter alternative for uploaded audio, timed SRT/VTT subtitles, speaker labels, and document exports.
Compare the Otter.ai alternative workflowFAQ
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