video tools• Accessibility
Add Subtitles to Video Online Free
Over 80% of social media videos are watched on mute. Upload your SRT or VTT file to burn clear, stylish subtitles directly into your video for maximum engagement.
Processed 100% locally in your browser.
Upload video to burn subtitles into
Supports MP4, WebM, MOV, MKV up to 500MB
Browse Video File
100% Client-Side Privacy • Zero Server Uploads
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How to Use Add Subtitles to Video
1
Upload Video & Subtitles
Select your video and your SRT or VTT subtitle file.
2
Preview Subtitles
Verify timing and customize font size, color, and background box.
3
Export Video with Subtitles
Download your hardcoded subtitled video.
About Add Subtitles to Video
Parses cue timestamps from the subtitle payload, tracking the playback clock and drawing active text lines onto the video canvas buffer.
Supported Formats
MP4WebMMOV
Key Features
- Supports standard SubRip (.srt) and WebVTT (.vtt) formats
- Live synchronized subtitle preview on playback
- Font size and dark background pill controls for readability
- Burn-in hardcoding ensures subtitles work everywhere
Frequently Asked Questions
Soft subtitles are separate text tracks that viewers can turn off; hardcoded subtitles are burned into the video pixels so they display on every platform without viewer toggling.
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