Spoolfield.ai
Video to text in your browser: transcript, SRT and JSON
Add a video by link or upload, choose Transcript and press Run. Spoolfield writes out everything that’s said as a plain text file, an SRT subtitle file and a JSON file with the time of every word. The listening happens on Spoolfield’s servers, so any browser on a computer or phone will do.
Free plan: 15 credits to start and no card. Transcribe only videos you own, are licensed to reuse, or have permission to use.
Get a transcript in 3 steps
- Under Your video, choose Link, paste the video’s address and click Add. Or choose Upload and drop in a video or audio file: MP4, MOV, MKV, WebM, MP3, M4A or WAV.
- Under Tool, choose Transcript. The bar at the bottom shows how many credits it uses before anything starts. Press Run.
- When the job is ready under Your jobs, look over the text on the page, then press Save next to the text, SRT and JSON files to download them.
Built for turning speech into text
Thai, English and dozens more
Spoolfield works out which language is spoken, so there’s no setting to pick. The words come out in that language.
Site captions first
When the video already has captions on the site it came from, Spoolfield uses them. When it doesn’t, the speech is turned into text on our servers.
Audio files work too
Upload the MP3, M4A or WAV of a podcast, a lecture or an interview, and you get the same three files you would from a video.
Check it before you download
A preview of the text shows on the page when the job finishes, so you can look it over before saving anything.
Questions
How much does it cost to turn a video into text?
1 credit per minute of audio, so a 20-minute interview uses 20 credits. A part-minute rounds up to a whole one. You see the price before you press Run, and nothing is charged if the job fails or nobody speaks in the video.
What’s the difference between the text, SRT and JSON files?
The text file holds only the words, for reading, quoting or pasting into a document. The SRT splits them into short timed lines that video editors and players show as subtitles. The JSON gives every single word its own time, for when you build something with the words yourself.
How accurate is the transcript?
It depends mostly on the sound. One clear voice with little background music works well. Loud music, people talking over each other or a noisy room make mistakes more likely, so read through names and numbers before you publish.
Can I put the words on the video as captions afterwards?
Yes. With the same video added, choose Captions instead of Transcript. The speech is already text, so the words cost nothing again while the transcript’s files are kept, and you pay only for the minutes of captioned video you get back.
Turn your next recording into text
15 free credits cover a video up to 15 minutes long, with no card. The captions and transcripts guide has more detail.