Auto sync subtitles
Auto sync subtitles to a video: drop both files and the subtitle timing is matched to the speech, with no timestamps to look up.
Free within your daily minutes
The audio's length counts against your daily minutes.
- Video or audio
- None yet
- File
- Format
- Cues
- Size
Read as — change it
The preview below re-renders as soon as you change this.
This format stores times as frame numbers, so it has no meaning without a rate. We don't guess one.
Nothing has changed yet.
No cues to show yet.
Choose EUC-KR if an older TV or player shows broken Korean characters. EUC-KR can't hold some characters, like emoji, and you'll see how many before you download.
Syncing by hand means finding the right offset by trial and error. Here the timing is matched to the speech for you, including drift from a frame rate mismatch. Only the times move, and the words stay exactly as they were. When it's done, you download the corrected file.
Questions
How do I sync subtitles to a video automatically?
Drop the video and the subtitle file above, then click "Match the subtitles to the speech". You download the corrected file.
When does automatic sync fail?
On long stretches of music or silence, and on subtitles made for a different cut of the film. For those, two-point sync or shift does the job by hand.
Does it change the subtitle text?
No. Only the times move.
Is it free?
Yes, within the daily minutes, counted by the length of the audio.