Companion captions · AI subtitle generator
AI Subtitles
An AI subtitle generator here is a caption packager for work you already wrote. Paste the transcript that drove the talking head, set how long the clip is, and download SRT or VTT with cues split on sentences. This page does not invent a transcript from a noisy file and it does not burn captions onto the MP4. Generate the face on a talking tool first, then pack the same words into a companion file the player or the LMS can load. Packaging on this page does not spend credits.
Captions
Pack these captions
No credits · sidecar files
Your SRT appears here. Paste the talking-video script, set the duration, then pack.
This page times the words you paste. It does not transcribe a recording and it does not spend credits. Generate the face on a talking tool first if you still need an MP4.
See an example
Why people use AI subtitle generator
Same words the mouth already used
Captions that disagree with the visemes are worse than no captions. Paste the script you generated with.
SRT and VTT, not a burned overlay
Players, YouTube, and most LMS tools want a sidecar file. Fancy styled captions still belong in an editor.
Timed to the clip you set
Cues share the duration by word count. Trim the talking job to the same length or the last cue will drift.
No credit meter on this page
Packaging a transcript is local. Lip-synced video still uses 150 credits for the first 30 seconds.
Three simple steps
- Step 1
Paste the transcript
The same copy that drove the talking avatar or presenter.
- Step 2
Set the duration to the MP4
Match the generate length. Extra silence at the end is still time.
- Step 3
Download SRT or VTT
Attach it in the player. Then go back to the face tool if the mouth still needs a pass.
What this clip costs in credits
Every AI subtitle generator job uses the same meter: 150 credits ($1.50) for the first 30 seconds, then 5 credits ($0.05) per extra second. Subscriptions price credits at $0.01; one-time packs are $0.08 each.
| Duration | credits | Generation price |
|---|---|---|
| 15s | 150 | $1.50 |
| 30s | 150 | $1.50 |
| 45s | 225 | $2.25 |
| 60s | 300 | $3.00 |
| 90s | 450 | $4.50 |
| 120s | 600 | $6.00 |
First 30 seconds = 150 credits ($1.50). Plan credits roll over while you stay subscribed.
Good for
Course modules
The instructor clip plus a caption file the LMS can toggle.
Silent-autoplay social
Upload the SRT where the platform accepts one, or burn it later.
Dubbing QA
A timed file makes it obvious when the new language overruns the shot.
Common questions about AI subtitle generator
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