Drop an MP3, WAV, M4A or FLAC and download captions timed from word-level timestamps, for podcast clips, audiograms and radio segments. Files over 500 MB continue on the upload page. Packs from $4, credits never expire. · instant preview with no signup · packs from $4 for 500 minutes, credits never expire.
How it works
An SRT file is only text and timecodes, so it does not need a video to exist.
A 30-second clip or a full three-hour show. Up to 500 MB in the box above; bigger files continue on the upload page, up to 10 hours or 5 GB.
Every word gets a timestamp and each voice gets a speaker label, typically a few minutes for an hour of audio. No signup to preview.
Bring the file into the tool you use to build the clip or player. TXT, DOCX and JSON are there too.
Getting the timing right
Caption times count from the start of the file you upload. That matters when you are making a short piece from a long recording:
Only need readable text rather than captions? Transcribe an MP3 covers transcripts of long audio files.
Where the file goes
Many audiogram makers and video editors accept an SRT, so the words appear in time with the sound when you turn a clip into a video.
Most social viewers scroll with the sound off. Captions give a clip a chance to be understood before anyone taps for audio.
When a segment goes on a website as a player, a VTT track makes it accessible and gives listeners the words alongside the audio.
The timestamps show exactly where a quote sits, and the transcript stays in your searchable library for the next time you need it.
Pricing
A pack from $4 opens the full transcript. After that, one-time packs: $8 for 1,000 minutes, $12 for 2,000 minutes, $24 for 5,000 minutes, about $0.29 to $0.48 per audio hour. Credits never expire.
| Audio | $8 pack | $12 pack | $24 pack |
|---|---|---|---|
| 1-minute clip | $0.01 | $0.01 | $0.00 |
| Week of clips, 30 minutes total | $0.24 | $0.18 | $0.14 |
| 1-hour episode | $0.48 | $0.36 | $0.29 |
| 3-hour radio show | $1.44 | $1.08 | $0.86 |
Figures are the share of a pack each recording uses. See pricing.
FAQ
Yes. An SRT file is text with start and end times, so it does not need video. Drop an MP3, WAV, M4A or FLAC and download SRT or VTT captions.
Drop the MP3 into the box on this page, preview the transcript with no signup, open it in full with a free account, then download the SRT.
Cut the clip first and upload only the clip. The caption times then start at zero and match your audiogram or social video exactly.
The transcript includes speaker labels, which helps with interview and co-hosted shows.
Up to 10 hours or 5 GB per file; without credits, up to 3 hours. The box here takes files up to 500 MB, and larger files continue on the upload page.
Yes. Every transcript exports as SRT, VTT, TXT, DOCX and JSON.
Packs from $4, credits never expire. After that a 1-hour episode uses $0.48 of the $8 pack, which buys 1,000 minutes. Credits never expire.
Instant preview, no signup. Packs from $4, credits never expire.