Captions by platform
Each platform captions differently and covers a different part of the screen with its buttons. These pages say what each one does, from its own help pages, and how to burn word-by-word captions in with Captions Cut.
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Captions for TikTok
TikTok makes automatic captions for the videos you upload and lets you edit them after posting; viewers can switch them off.
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Captions for Instagram Reels
Instagram can add closed captions to a Reel from its speech: turn on Enable closed captions under More options before you share.
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Captions for YouTube Shorts
YouTube makes automatic captions for Shorts in 67 languages and publishes them as a track viewers switch on; you can also upload an SRT or VTT file in YouTube Studio.
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Captions for Facebook Reels
Facebook can transcribe a reel’s audio into an on-screen caption (tap Captions while editing) and lets Page videos use generated captions or an uploaded SRT file.
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Captions for LinkedIn
LinkedIn adds automatic captions in 10 languages when you turn on Add auto captions at upload, and takes SRT files on desktop.
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Captions for X (Twitter)
X generates captions with speech-to-text and shows them when a viewer’s captions setting is on, and lets you attach an SRT file on the web.
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Captions for Snapchat Spotlight
Snapchat’s own pages describe typing captions by hand, not automatic ones, so for Spotlight the dependable route is burning captions into the video before you post: Captions Cut does it from the speech, word by word.