Subtitle Adder
Burn subtitles permanently into your video files
How to use:
- Upload your video file (MP4, AVI, MKV, MOV, WEBM)
- Upload your subtitle file (.srt or .vtt format)
- Click "Add Subtitles" to burn them into the video
Subtitles are burned (hardcoded) into the video — they cannot be turned off by the viewer.
1. Upload Video File
Drag and drop files here
or click to browse
Accepted: .mp4, .avi, .mkv, .mov, .webm
Max size: 100MB
2. Upload Subtitle File
Click to select subtitle file
Supported: .srt, .vtt
How should my SRT file look?
1 00:00:01,000 --> 00:00:04,000 Hello, welcome to the video! 2 00:00:05,000 --> 00:00:08,000 This is the second subtitle line.
About the Subtitle Adder
Burn SRT subtitles directly into your video. Upload your video and subtitle file, and download a copy with the captions permanently displayed — perfect for social media where captions play automatically. Free and in-browser.
Key features
- Burn SRT subtitles into MP4 and more
- Hardcoded captions that always display
- Ideal for social media and accessibility
- Free, fast and no signup
Frequently asked questions
- What is the difference between hardcoded and soft subtitles?
- Hardcoded subtitles are burned into the video image and always show; soft subtitles can be turned on or off by the player.
- What subtitle format do I need?
- Upload a standard SRT subtitle file along with your video.
- Is the subtitle adder free?
- Yes, it is completely free with no account.