Add Subtitles to Any Video — SRT Files, Auto Captions, and Burned-In Text

Three Ways to Add Subtitles — Pick Your Workflow

Subtitles are not optional in 2026. 85% of Facebook videos are watched without sound. TikTok auto-plays muted. LinkedIn feed videos start silent. If your video has no captions, most viewers scroll past without hearing a word.

Here are three ways to add them:

Method	When to Use	Effort	Accuracy
Import SRT file	You already have a subtitle file (from YouTube, a translator, or a transcription service)	Low — drop and done	100% (pre-written)
Auto-generate captions	You want captions generated from the audio automatically	Low — AI does the work	90-95% (review needed)
Type manually	Short video, foreign language, or specific timing needs	High — you type everything	100% (you control it)

Method 1: Import an SRT File (Most Common)

SRT (SubRip Text) is the universal subtitle format. YouTube, Vimeo, and most video platforms export subtitles as .srt files. An SRT file looks like this:

1
00:00:01,000 --> 00:00:04,000
Welcome to our product demo.

2
00:00:04,500 --> 00:00:08,000
Today we will walk through the
new dashboard features.

Workflow:

1. Open the Add Subtitles tool
2. Drop your video file
3. Upload your .srt file
4. Preview — subtitles appear on the video at the correct timestamps
5. Customize font size, color, and position if needed
6. Download — subtitles are permanently burned into the video

Where to get SRT files:

• YouTube Studio — any video you own has auto-generated captions downloadable as SRT
• Transcription services — Rev, Otter.ai, Descript export SRT
• Subtitle databases — OpenSubtitles, Subscene for movies/shows
• Manual creation — any text editor can create SRT files with the format above

Soft Subtitles vs Hard (Burned-In) Subtitles

This distinction matters more than most people realize:

Type	How It Works	Pros	Cons
Soft (SRT/VTT)	Separate file, player overlays text	Viewer can toggle on/off, change language, resize	Not all players support it; social media ignores sidecar files
Hard (burned-in)	Text rendered into the video pixels	Works everywhere — TikTok, Instagram, email, any player	Cannot be turned off or changed after encoding

For social media, always burn in. TikTok, Instagram, Twitter, LinkedIn, and Facebook all ignore SRT sidecar files. The only way to guarantee captions appear is to render them directly into the video. The subtitle tool burns subtitles in by default.

For YouTube and Vimeo, upload soft subtitles separately — these platforms have built-in caption support with language switching and accessibility features.

Styling Your Subtitles

Default white text on a black bar is functional but looks dated. Modern social video uses styled captions:

• Font size — larger for mobile viewing (most social video is on phones). If you can barely read it on your computer, it is invisible on a phone screen.
• Background — semi-transparent dark background behind text improves readability over bright video frames. Pure white text without background disappears over light scenes.
• Position — bottom-center is standard. For TikTok/Reels, move captions to the center or upper-third to avoid UI overlaps (username, like buttons cover the bottom 20%).
• Color — white with dark outline works on any background. Colored text (yellow, cyan) draws attention but can look unprofessional.

After adding subtitles, you may want to crop the video to 9:16 for TikTok/Reels or resize to platform-specific dimensions.

The Full Social Video Workflow

Creating subtitled social content from a raw video:

1. Trim — cut to the key section (15-60 seconds for social)
2. Add subtitles — import SRT or auto-generate captions with the subtitle tool
3. Crop to vertical — crop to 9:16 for TikTok/Reels, 4:5 for Instagram feed
4. Resize — resize to 1080×1920 (vertical) or 1080×1350 (feed)
5. Compress if needed — compress to meet platform file size limits

Order matters: add subtitles before cropping so the text appears in the correct position relative to the final frame. If you crop first, subtitle positioning may be off.