Automatic caption generator
Automatic caption generator with true word-by-word sync
Zupum transcribes your video from the audio itself, then highlights each word exactly as you say it - the karaoke effect short-form audiences expect, generated automatically and burned into the export.
Captions that match the lips
Line-level subtitles drift and read as an afterthought. Zupum times captions at the word level from the audio, so the highlight lands on the spoken word rather than roughly near it.
- Word-level timestamps from acoustic transcription, not guesses
- 40+ caption styles across bold creator, clean and editorial looks
- Custom fonts, sizes, colours, outlines and shadows
- Drag captions anywhere in the frame; the position applies everywhere
- Sync nudge slider for frame-level correction
- Filler words like um and aah removed from both audio and captions
Styling is retention, not decoration
Pick a style before the edit starts or switch it mid-edit and watch the whole video restyle instantly - useful for testing which look holds your audience.
The same transcript powers the rest of the edit
B-roll placement, sound effects and hook text all come from the same transcript, so your captions and visuals reinforce each other instead of being two separate jobs.
Generate captions now
Open the Zupum studio, upload a clip and captions appear with the first AI pass.












