Simple caption workflow
Create Captions in Minutes.
AutoCaption turns raw video into a ready-to-share MP4 with synced captions, readable styles, and a live preview so you can check everything before export.
Preview screen
Live caption preview00:12 / 01:07
Your captions stay in sync with speech.
Upload in your browser
Up to 50 MB
Free upload limit
Add your video and start processing right away with no extra setup.
Word-level timing
Word sync
Caption timing
Caption timing follows speech so highlighted words appear at the right moment.
Preview before export
Live preview
Before export
Check your styled captions in the player, then export when everything looks right.
Pipeline
Three simple steps from video to final download.
Upload your video, let AutoCaption build synced captions, then download a finished video you can post anywhere.
Drag in your video
Choose your caption style
Watch live progress
Download a ready MP4