Plain text to
timed subtitles.
Paste any text, get an .srt or .vtt with auto-timed cues. Each line becomes one caption. Great for scripts, slideshows, and kinetic typography.
Add subtitles to your video for just $3/month.
100 minutes of AI transcription, viral caption styles, burned-in MP4 export. No watermark. Cancel any time.
5 minutes free · No credit card · Cancel any time
Frequently asked
Why doesn't this match my video's audio?+
Auto-timing is mechanical — each line gets the same duration (or one scaled by word count). It will not match your speaker's actual pace. To get word-perfect, audio-aligned captions, upload your video to a transcription tool that uses Whisper or similar AI.
When is this useful?+
When you have a script before recording (and want a starting timeline to refine), when you're captioning slideshows or kinetic typography, when you're prototyping subtitles for a project, or when you're building a karaoke-style file from lyrics.
What's a good seconds-per-line setting?+
For typical short captions of 4–8 words, 2.5–3 seconds reads comfortably. For longer lines (10+ words) try 4–5 seconds. Most viewers need around 17 characters per second to read comfortably.
What does Words/sec do?+
Instead of fixing duration per line, it scales each cue by its word count divided by your chosen rate. A 12-word line at 2.5 wps becomes 4.8 seconds; a 4-word line becomes 1.6 seconds. This produces a more natural pace if your line lengths vary.
Can I import the result into CapCut or Premiere?+
Yes — choose SRT for the output and drag the .srt onto your editor's timeline. Adjust per-cue timing from there to match your audio.