Video Captions and Subtitles: How to Add Them Well

Many people watch videos with the sound off, in public places or while multitasking. Captions let them follow along. They also help viewers who are deaf or hard of hearing, and those who understand written language better than fast speech. For marketers, captions are one of the simplest upgrades you can make to a video.

Captions versus subtitles

• Captions transcribe speech and often describe important sounds. They are intended for viewers who cannot hear the audio.
• Subtitles translate or transcribe speech for viewers who can hear but may not understand the language.

In everyday social media use the terms are often mixed up, and what matters is that the text is accurate and readable.

Two types of captions

• Burned-in (open) captions are part of the video image. They always show and you control the style.
• Closed captions are a separate file (such as SRT) that viewers can switch on or off. Platforms like YouTube support uploading these.

Use burned-in captions for short vertical videos. Use closed caption files for longer YouTube content, where they can also support accessibility and search.

How to create captions

1. Use auto-captioning in CapCut, Instagram, YouTube or an editor like Premiere Pro.
2. Read the entire transcript and fix errors, especially names, brand terms and numbers.
3. Break lines at natural pauses.
4. Keep timing in sync with speech.
5. Export or burn them in.

Automatic captions are a starting point, not a finished product. Always review them.

Style guidelines for readability

• Use a clean, bold, sans-serif font.
• Keep to one or two short lines at a time.
• Use strong contrast, such as white text with a dark outline or box.
• Place captions away from key visuals and the platform interface area.
• Highlight one important word at a time if it suits your brand, but do not overdo it.
• Use the same style across videos for brand consistency. See typography for brands.

Indian languages and mixed language

Many creators in India speak a mix of English and a regional language. Auto-captioning accuracy may be lower for mixed speech, so review carefully. Consider writing captions in the script your audience reads most comfortably, and test with a few viewers. You can also create separate versions for different language audiences.

A hypothetical example

A Hyderabad-based real estate agent records property walkthroughs in Telugu and English. She exports burned-in captions in English for Instagram and uploads a Telugu SRT file for YouTube, so viewers can choose their preference.

Pair captions with good editing

Captions work best when the video is already tight. Read our video editing for beginners guide, and see accessible social media graphics for the broader checklist.