Every word, right on time.
01
Speech to text with frame-accurate timing
StarCut transcribes the speech in your clip and aligns each caption to the frames where it is spoken, so every line appears and leaves on the beat.
Auto Subtitle Generator
Upload any audio or video and StarCut transcribes it into frame-accurate captions. It detects pauses, breaths, and filler words so the dialogue stays tight, and keeps every caption editable on the timeline.
Upload a file to start. Captions stay editable after they are generated.
Captions that are timed, trimmed, and styled
02
Cut pauses and filler words
The same pass detects pauses, breaths, and filler words. Remove them together and the dialogue tightens without trimming every gap by hand.
03
Style captions on the timeline
Captions sit on their own track. Fix a word, move a line, change the style, or add kinetic text effects for social cuts.
Subtitles for every kind of talk
Anything with speech in it can get a timed, editable caption track.
Interviews and podcasts
Subtitle long conversations and tighten them before publishing.
Short-form social
Bold, timed captions for clips that play with the sound off.
Tutorials and talks
Readable captions for step-by-step presenter footage.
How to add subtitles to a video in three steps
- Step 1
Upload audio or video
Drop in the file you want to caption.
- Step 2
Generate captions
StarCut transcribes the speech and times each line to the frames.
- Step 3
Review and style
Fix words, remove pauses, and choose how the captions look.
Explore more StarCut tools
AI Video Editor
Edit in the browser with an agent beside the timeline
Open
AI Shorts Maker
Vertical clips for Shorts, Reels, and TikTok from one prompt
Open
Podcast Video Editor
Turn long episodes into captioned clips and vertical shorts
Open
AI Text to Speech
Natural narration from a script, timed to your edit
Open
From the guides
- How-toHow to add subtitles to a video online (and keep them editable)A practical guide to adding subtitles to a video in the browser with StarCut: auto captions, styling, timing fixes, and export.
- AudioVoice to caption and text to voice on one StarCut timelineCaptions and voiceovers are not side exports. In StarCut they land on the timeline next to the cut, so you can tighten dialogue and narration in the same project.
- StudioEdit video in the browser: a zero-install StarCut workflowA browser video editor is useful when the cut stays editable. StarCut puts the agent, the timeline, and the generated media in one project you can reopen.
Questions about auto subtitles
How accurate are the subtitles?
Captions are aligned to the frames where each word is spoken. As with any transcription, names and jargon can need a quick fix, which you make directly on the timeline.
Can it remove silences and filler words?
Yes. StarCut detects pauses, breaths, and filler words while it transcribes, so you can cut them in one step.
Can I edit the captions afterwards?
Yes. Captions are clips on their own track. You can change the text, timing, and style at any time.
Can I add a voiceover and caption it too?
Yes. Generate narration with text to speech, then caption it the same way as recorded audio.
Caption your next video
Upload a clip and let StarCut time every line.