Captions and subtitles make YouTube videos easier to follow for deaf or hard-of-hearing viewers, people watching without sound and viewers who speak another language. YouTube can generate automatic captions, but creators should still review them.
Automatic captions
YouTube uses speech recognition to generate captions for supported languages on long-form videos and Shorts. Automatic captions may not be ready immediately after upload because processing time depends on audio complexity.
Why creators should review automatic captions
YouTube warns that machine-generated captions can misrepresent speech because of pronunciation, accents, dialects, background noise, overlapping speakers or poor audio quality. Creators should review and correct mistakes rather than assuming the automatic transcript is accurate.
How to edit automatic captions
- Open YouTube Studio.
- Select Subtitles.
- Choose the video.
- Open the relevant language track.
- Duplicate and edit the automatic caption track where required.
- Correct the text and timing.
- Publish the revised track.
Manual subtitle and caption options
YouTube also lets creators upload supported subtitle files or enter captions manually. Caption files can contain the spoken text and timestamps, and some formats support additional positioning or styling information.
Captions vs subtitles
The terms are often used interchangeably, but captions are generally designed to represent spoken dialogue plus important audio information, while subtitles are often translations of spoken dialogue. On YouTube, both are managed through the Subtitles section in Studio.
Automatic captions and multiple audio tracks
If a video has multiple language audio tracks, YouTube says automatic captions are generated for the default language. That makes the original-language setting important for multilingual channels.
For translated audio, see our YouTube Automatic Dubbing guide.
Why captions may not appear
Common reasons include:
- The video is still being processed.
- The spoken language is not supported for automatic captions.
- The video is too long for the system to process automatically.
- Audio quality is poor.
- There is a long silent section at the beginning.
- Several speakers overlap.
- Multiple languages are spoken at the same time.
Captions for accessibility
Captions should be treated as part of the publishing workflow rather than an afterthought. Accurate captions can improve comprehension for viewers with hearing loss and make educational or technical content easier to follow.
Captions for global channels
Creators targeting international audiences can combine accurate captions, translated subtitles, translated metadata and dubbed audio. Do not assume one feature replaces the others: a viewer may prefer translated text even when a dubbed audio track is available.
Caption quality checklist
- Correct names, brands and technical terms.
- Fix punctuation where it changes meaning.
- Check numbers, dates and measurements.
- Review sections with music or background noise.
- Verify speaker changes in interviews.
- Make sure timing does not lag far behind the spoken words.
Start the conversation
Corrections, useful experiences and focused questions are welcome. Keep discussion respectful and on topic.