Free · No signup · Nothing uploaded
Subtitle merger
Combine two subtitle files into one: two languages together, or two parts one after the other.
First file
SRT or VTT
Second file
SRT or VTT
For two languages: lines shown at the same time become one caption with two lines.
Subtitle Merger: free, private and right in your browser
Combine two subtitle files into one: two languages together, or two parts one after the other.
- Dual-language subtitles
- Join parts in order
- SRT and VTT
- Nothing uploaded
How to use the subtitle merger
REC 00:42Step 01Choose two files
SRT or VTT.
Step 02Pick how
Both at once (two languages) or one after the other.
MOV → MP4Step 03Download
Save the merged SRT or VTT.
Learning languages
Show your language and the original together.
Joined videos
Subtitles for two clips merged into one video.
Accessibility
Add sound descriptions from a second file.
Frequently asked questions
Is my file uploaded?
No. Everything happens in your browser on your own device. Nothing is sent to a server.
Is it free?
Yes. It is free, with no signup and no watermark.
Does it work on a phone?
Yes, in a modern browser. Long videos are quicker on a computer.
Which files work?
MP4, MOV, WebM and MKV videos, and MP3, WAV, M4A, OGG and FLAC sound files.
Tools