Castos
Free Podcast Tool

Free Transcript Converter

Turn a timestamped transcript into a VTT, SRT, Podcasting 2.0 JSON, or plain text file. Free, private, and entirely in your browser.

A Castos transcript, an SRT, or a VTT file. Nothing is uploaded.

Choose a format

WebVTT is what Apple Podcasts and the Podcasting 2.0 transcript tag expect, and what Castos accepts as an upload.

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How To Convert A Transcript

  1. Step 1

    Paste Or Open Your Transcript

    Copy a transcript from the episode editor in Castos and paste it in, or open an SRT or VTT file. The text stays in your browser.

  2. Step 2

    Pick A Format

    Choose VTT for podcast apps and your website, SRT for video and captions, JSON for Podcasting 2.0, or TXT for plain text. The preview updates as you switch.

  3. Step 3

    Download The File

    Add the episode title to name the file, download or copy it, then upload it wherever it needs to go, like the transcript field on a WordPress episode.

From A Castos Transcript To A File You Can Upload

Castos transcripts come as text, with a timestamp at the start of each line and a speaker name if there's more than one voice. That's easy to read and edit, but a lot of places only take a transcript as a file. Seriously Simple Transcripts, for example, adds a file field to each episode in WordPress. Paste the transcript here, download a VTT, and upload that.

End Times Filled In For You

A Castos transcript marks when each line starts, but VTT, SRT, and JSON also need to know when it ends. The converter ends each line where the next one starts. The last line has nothing after it, so its length is worked out from how many words it has. If your file already has end times, like an SRT or VTT, they're kept as they are.

Speaker Names Come Along

Speaker labels like Speaker A or the names you gave them in Castos carry over into every format: as voice tags in VTT, in front of each line in SRT and TXT, and in the speaker field of the JSON file. Your text is never reworded or recapitalized. What you paste is what you get, so fix any names or spelling before you convert.

Which Format Should You Use?

Use VTT unless something asks for a different one. It's the format Apple Podcasts and the Podcasting 2.0 transcript tag expect, and it's what Castos accepts as an upload. SRT is the older caption format that YouTube and most video editors take. The JSON option follows the Podcasting 2.0 transcript format. TXT drops the timestamps and gives you clean paragraphs for show notes or a blog post.

Want Transcripts Without The Copying? Use Castos

  1. Upload a new episode in Castos

    Transcribed On Publish

    Every episode you publish on Castos is transcribed automatically, with each speaker labeled.

  2. Fill in podcast details in Castos

    Sent To Podcast Apps

    Castos adds a VTT file to your RSS feed for each transcribed episode, so apps like Apple Podcasts can show it to listeners.

  3. Link your feed to each podcast directory

    On Your Episode Pages

    Transcripts show on your Castos podcast website too, where search engines can read every word.

Frequently Asked Questions

How do I convert a transcript to VTT?
Paste your transcript into the box above or open an SRT or VTT file, keep VTT selected, and click Download VTT. The file is ready to upload to your website, your podcast host, or a video editor.
What transcript formats can I paste in?
Castos transcripts, with a timestamp like [00:00:03] at the start of each line, plus SRT and VTT files. Other timestamped text works too if every line starts with a time in square brackets.
How do I add a Castos transcript to my WordPress site?
Copy the transcript from the episode editor in Castos, paste it here, and download a VTT file. In WordPress, upload that file to the episode's transcript field from Seriously Simple Transcripts, the free add-on for Seriously Simple Podcasting.
Where do the end times come from?
If your transcript only has start times, each line ends where the next one starts, and the last line's length is estimated from its word count. If your SRT or VTT file already has end times, they're kept.
Will the converter fix capitalization or typos?
No. The text comes out exactly as it went in, so names and spelling from automatic transcription stay as they were. Edit the transcript before you convert it, either in Castos or in the box above.
Is my transcript uploaded or stored anywhere?
No. The conversion runs in your browser, and Castos never receives your transcript or the file you download.

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Get Every Episode Transcribed With Castos

Castos transcribes each episode you publish, labels the speakers, and sends the transcript to podcast apps for you.

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