Muted feed viewing
Many Facebook users watch video without sound, so subtitles keep your video understandable on mute.
Facebook Subtitles
Subtitle Generator for Facebook - AI Captions for FB Videos
Add subtitles to Facebook videos, Reels, and Stories: generate a caption draft, style it for muted autoplay, and export an MP4 with the captions burned in. Start with 3 free minutes.
MP4 or MOV
video upload
3 min
free to start
11
spoken-language options
Features
Why Facebook videos need subtitles
Readable on phones
Keep caption lines short and the font large enough for small screens in the feed.
Accessible videos
Captions help deaf and hard-of-hearing viewers follow your videos. Review them for accuracy before posting.
Reels + Stories support
Caption vertical 9:16 Facebook Reels and Stories, and position text clear of on-screen buttons.
Hinglish and Indian languages
Caption videos in the spoken language: Hinglish, English, Hindi, or another supported option. Captions are not translated.
Brand caption styling
Match caption fonts and colors to your page's brand across Feed, Reels, and Stories.
Workflow
How to add subtitles to Facebook videos
Step 1
Upload your video
Upload an MP4 or MOV video that you own or have permission to process.
Step 2
Generate AI subtitles
Choose the spoken language and CapsAI creates timed captions from the speech in your video.
Step 3
Customize for Facebook
Correct the text and timing, then apply a caption style and check its placement.
Step 4
Export and publish
Export an MP4 with the captions burned in, using an option available to your plan.
Use Cases
Facebook video formats covered
Facebook feed videos
Standard landscape or square videos in the News Feed. Captions sized for autoplay viewing without sound.
Facebook Reels
Vertical 9:16 Reels with animated caption styles.
Facebook Stories
Vertical Stories with captions positioned clear of on-screen buttons. Preview placement before export.
Facebook video ads
Caption video ads so the message works in muted placements, then compare results in Meta's own ad reporting.
Why CapsAI
Facebook caption options and why burning is still better
Facebook does support SRT file uploads for some video types. But the built-in caption player uses a plain white font with a black background that you can't customize. It looks generic and covers your video with an ugly text box. Burning captions in gives you full control over how your message appears in the feed.
- Burned-in captions appear the same in Feed, Reels, and Watch, and when the video is shared
- Custom caption styling keeps your brand look instead of a plain default caption box
- Keep captions clear of Facebook's on-screen buttons in vertical placements
- Preview the captions at phone size before export
FAQ
Facebook subtitle generator FAQs
Should I burn in subtitles or use Facebook's SRT upload?
The export is an MP4 with the captions burned in. Separate SRT or VTT files are not available from the editor yet; the standalone converters under /tools work on subtitle files you already have. Facebook's own caption upload needs a separate SRT file, so with CapsAI you post the burned-in version, which keeps your styling and shows in every placement.
What aspect ratio works best for Facebook videos?
1:1 square and 4:5 vertical take up more screen space in the feed, and 9:16 suits Reels and Stories. Preview caption placement for the ratio you use before export.
Can I add subtitles to Facebook Live replays?
Yes. Download your Facebook Live replay as an MP4 or MOV file, upload it to CapsAI, and re-upload the captioned version.
What's the best way to add captions to Facebook Reels?
Burn them into the video before uploading. In CapsAI, choose a vertical caption style, check its position against Facebook's on-screen buttons, and export the captioned MP4.
Which files can I upload?
The uploader accepts MP4 or MOV video files. Audio-only files and pasted video URLs are not part of the caption workflow.
How accurate are the captions?
Accuracy depends on audio clarity, background noise, accents, and language selection. CapsAI creates a first draft and lets you edit captions before export.
How much can I try for free?
You can start with 3 free minutes. Free video export may include a CapsAI watermark; watermark-free video export is listed as a paid-plan benefit.
Add subtitles to your next Facebook video
Upload an MP4 or MOV file, review the caption draft, and export a captioned MP4 for your Facebook videos. Start with 3 free minutes.
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