AutoSubSync is a cross-platform desktop application designed to automatically synchronize subtitle files with video content using advanced alignment algorithms. It integrates tools like ffsubsync, autosubsync, and alass to analyze audio and match subtitle timing with high accuracy. The application supports both automatic synchronization and manual adjustment, allowing users to fine-tune results when needed. It provides a drag-and-drop interface that simplifies the process of loading video and subtitle files, making it accessible for non-technical users. AutoSubSync also includes batch processing capabilities, enabling users to handle entire media libraries efficiently. It supports a wide range of subtitle formats and can synchronize subtitles using either the original video or a reference subtitle file. Overall, it streamlines subtitle correction workflows while maintaining flexibility and precision.

Features

  • Automatic subtitle synchronization using multiple engines
  • Manual timing adjustment with millisecond precision
  • Batch processing with folder scanning and pairing
  • Support for multiple subtitle formats like SRT and VTT
  • Drag-and-drop interface for quick file handling
  • Sync using video audio or reference subtitle sources

Project Samples

Project Activity

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Categories

Video

License

GNU General Public License version 3.0 (GPLv3)

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AutoSubSync Web Site

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Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

Python

Related Categories

Python Video Software

Registered

2026-04-27