Video captions are on-screen text for hard-of-hearing viewers or for those who have the sound off. Adding these makes your product videos accessible to a larger audience across social media, email, and video platforms.
Captions also address how people actually watch videos online. A 2026 EquaTV study shows that 74% of European consumers and 66% of US consumers keep their phones on silent while watching video in public. Captions make it possible for viewers to understand your message in those environments. Captions also make it simpler for those who don’t speak the language fluently or have trouble understanding certain accents to access your content.
This article explains what captions are, how they differ from subtitles and text overlays, why they matter for ecommerce businesses, and how to add captions to videos step by step across different platforms.
What are captions?
Captions are text versions of the audio in a video. They include spoken dialogue and, in many cases, descriptions of non-speech elements like music, sound effects, or speaker identification.
The terms caption and subtitle are often used interchangeably, but captions typically include sound effects and music. You add subtitles primarily for translation (though they can be in the original language), and assume the viewer can hear other sounds.
Captions also differ from text overlays, which only show highlighted words or phrases on screen for commentary or emphasis, and don’t need to correspond exactly with what’s being said in the video.
Why add captions to videos?
- Improve accessibility
- Support silent viewing
- Increase content reuse
- Help with search and discoverability
Captioning your videos can expand your audience, help with discovery, and make your content more versatile.
Improve accessibility
Captions make your video content usable for viewers who are hard of hearing. According to the Centers for Disease Control and Prevention, about 13% of Americans have some degree of hearing loss, and the World Health Organization states that 1.5 billion people worldwide have some hearing loss. Having captions means these viewers can now watch and engage with your content.
You can also generate video subtitles from your captions to support viewers who may not be fluent in the language spoken in your video, helping expand your potential audience.
Support silent viewing
People without hearing loss or understanding issues also watch videos with the sound off, in public spaces and privately. And the EquaTV study found that US and European audiences across mobile, desktop, and TV are more likely to view videos that have captions. The study also shows that 62% of viewers across both regions keep their phones on mute as a default, and 31% and 28% keep computers and TVs muted, respectively.
Increase content reuse
Captions can also help you turn your video content into written content. Muammar Reed, cofounder of Mija Books, says on Shopify Masters that he extracts the captions from his videos using editing software like Adobe Premiere Pro, Final Cut, CapCut, or other AI tools, and feeds that text into an AI program like ChatGPT, Claude, or Gemini.
Then, he instructs the AI to write newsletters or social media carousel posts in his voice because it is trained directly on the captions from his video content.
Help with search and discoverability
Algorithms can’t hear your video, but video caption SRT files help search engines and internal platform search tools (like for YouTube) better understand what a video contains. That’s why Google suggests it in its SEO best practices.
How to add captions to videos
- Generate captions from your video upload
- Edit and refine the text
- Export a caption file
- Upload or embed captions with your video
Adding captions typically follows a repeatable process regardless of the platform or tools you’re using.
1. Generate captions from your video upload
Many video platforms’ editing tools use speech recognition so that captions and subtitles can be automatically generated with just a few clicks. You can also use tools like Adobe Premiere Pro, Final Cut Pro, and CapCut to create captions directly from your video’s audio track.
Sites like YouTube and Instagram also have built-in tools that can generate a quick first draft of your captions.
2. Edit and refine the text
To edit auto-generated captions, open the Captions or Subtitles panel in your video editor or platform. You’ll usually find this in the editing interface.
Common edits include:
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Correcting paronyms, or words that sound the same but have different meanings and spellings
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Checking for proper spelling and punctuation
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Manually adjust timing to make sure the video and spoken words match
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Adding speaker labels or sound cues when relevant
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Adjusting the font style
3. Export a caption file
Export captions as a SubRip Subtitle file, commonly called an SRT file. This file contains text that is time-coded so that it syncs up correctly with your video file. After you edit your captions, find an option called Export captions, Download SRT, or something similar to access the caption file.
4. Upload or embed captions with your video
After you’ve edited and exported the file, upload your video and the SRT file to your video platform (such as YouTube or Vimeo). Most platforms will automatically sync the text to your video based on the time codes.
Some tools also allow you to burn in captions, which means they’re permanently embedded in the video and always visible.
4 platforms for publishing videos with captions
Each platform supports captions differently and plays a distinct role. Some help customers find your videos, while others help them evaluate products more closely.
Shopify
Adding captioned demo videos on your product pages and blog posts can help hard-of-hearing customers, or those watching on mute, understand how a product works without needing to leave your online store. To do this, hard-code your captions to the product video file before you upload.
YouTube
YouTube includes a search and recommendation system that helps users find videos based on relevance, engagement, and metadata such as titles, descriptions, and captions.
It also provides strong support for captions. You can upload a caption file (such as an SRT), edit captions directly in the platform, or use auto-generated captions as a starting point. These caption files give YouTube additional text it can index, helping it better understand your video’s content and match it to relevant searches.
Instagram videos autoplay as users scroll. Captions ensure those who have the sound off don’t have to turn it on to get the message. Instagram provides automatic captions and also supports on-screen text overlays that you can use to reinforce key points or add context that isn’t obvious from visuals alone.
Vimeo
Vimeo allows you to customize the video player by adjusting colors, controls, and branding. You can use the caption function to download, replace, delete, or edit SRT files. Click on the overflow menu, which looks like three stacked dots (⋮), to choose the functionality you’re looking for.
How to add captions to videos FAQ
How do you easily add captions to videos?
Many editing tools and platforms can handle the bulk transcription work by auto-generating your captions. You can either do that in your video software or let a platform like YouTube handle it for you.
Can AI add captions to a video?
Yes, AI tools can use speech recognition technology to generate captions automatically. These captions typically require manual review to correct errors and adjust timing. For example, they might sometimes confuse paronyms, so always review before you publish.
How do you add captions that stay on the screen?
Captions that stay on screen are called burned-in captions. To add them, open your video in an editor, generate or import your captions, and then choose an option such as embed captions, burn subtitles, or export with captions when exporting the final video file. This permanently places the text onto the video so it is always visible and cannot be turned off.
What videos are best for email marketing?
If you want to include videos in your email marketing messages, linking to platforms like YouTube or Vimeo instead of embedding the video files directly can help emails load more quickly and avoid compatibility issues across email clients. Because those platforms support captions, viewers who click through can watch with or without sound and still understand the message. This is especially useful for recipients viewing emails in quiet or public environments.
