Automatic subtitle synchronization tool.
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Updated
Nov 19, 2025 - Python
Automatic subtitle synchronization tool.
Automatically synchronize and translate subtitles, or create new ones by transcribing, using pre-trained DNNs, Forced Alignments and Transformers. https://subaligner.readthedocs.io/
Improve the timing of existing subtitles via various scripts.
Small CLI tool to fix out-of-sync .srt subtitles that drift over a movie.
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A desktop tool to realign/synchronize subtitle (.srt) files against a reference and a new media file by visual inspection and automatic audio offset detection (cross correlation).
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