Subtitle merger
Join two subtitle files into one. Put the second part of a film after the first, so a two-part release plays with one file, or combine subtitles in two languages so both show on screen at the same time.
Your subtitle file
Drop subtitle files here
SRT, VTT, ASS, SBV, TTML, SUB, SMI, LRC and more · up to 100 files
Or paste subtitle text
Your file is read by this page in your browser. It is not uploaded anywhere.
Letters look wrong? Choose the language group the file was made for.
MicroDVD and Spruce STL files count video frames. Choose the frame rate of the video the subtitles belong to.
Your result
The preview shows the beginning of the file. The download contains everything.
How to use it
Open the first file
Choose or drop the first subtitle file. For a film in two parts, this is part 1. Nothing is uploaded.
Add the second file
Choose the second file, then pick One after the other or Two languages together.
Download the merged file
Check the preview, then download one file in the format of the first.
One after the other
Older film releases often come as two video files, CD1 and CD2, each with its own subtitles that start again at 0:00. To play a joined video with one subtitle file, every caption of part 2 has to move by the length of part 1. The tool fills in the end of the last caption of the first file as a starting point; replace it with the exact length of the first video part if you know it.
If the second file is already timed for the whole film, enter 0 and the captions are simply put together in time order.
Two languages together
For language learning, or when two people watch in different languages, the tool adds each caption of the second file to the caption of the first file it overlaps most, on a new line above or below. Captions of the second file that overlap nothing stay as captions of their own.
Two languages make long captions. Most players show three or four lines without trouble, but check a few busy scenes before you rely on the result.
What the merged file keeps
The merged file is written in the format of the first file. Italic, bold, underline and line breaks are kept from both files. ASS and SSA files are saved as ASS with one default style, so fonts, colors and positions are not kept.
Questions and answers
How do I merge CD1 and CD2 subtitles?
Open the CD1 file, add the CD2 file, keep One after the other and enter the length of the first video part as the start of the second file.
Can I merge an SRT file with a VTT file?
Yes. Both files are read whatever their format, and the result is saved in the format of the first file.
How do I show two subtitle languages at once?
Open the first language, add the second, choose Two languages together and pick whether the second language goes above or below.
Do both files stay on my device?
Yes. Both files are read and merged in your browser and never uploaded.