# denizsafak/AutoSubSync

Automatic subtitle synchronization tool.

Repository: https://github.com/denizsafak/AutoSubSync
Canonical: https://ross.abutalabs.com/products/autosubsync
Homepage: https://pypi.org/project/assy/
Language: Python
License: GPL-3.0
License Family: copyleft
Topics: subtitle-synchronization, subtitle-tools, subtitle-correction, subtitle-synchronizer, sync-subtitles, automatic-subtitle, subtitles, subtitle, srt-subtitles, synchronization, subtitle-conversion, vlc, srt, subrip, sync, captions, vtt, video, ffmpeg, caption
Last push: 2026-08-17T07:03:00+00:00

## Health v2 (maintenance only)
Score: 91/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 98, longevity 63
- inputs: {"age_days": 895, "days_push": 16, "days_rel": 16, "gap_med": 2.0, "n_releases_24m": 41}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1153, forks 38 (observed 2026-08-28T04:03:47.382969+00:00)

## What it is
AutoSubSync is a cross-platform tool that automatically synchronizes subtitle files with videos using engines like ffsubsync, alass, and autosubsync, with a drag-and-drop GUI and manual timing adjustment. It supports SRT and VTT formats, batch mode, and subtitle conversion.

## Use cases
- sync subtitles with a video automatically
- fix out-of-sync srt subtitles
- batch sync subtitles for multiple videos
- manually adjust subtitle timing
- convert subtitles between srt and vtt

## When to choose
- you need a simple GUI to fix subtitle desync without command-line knowledge
- you want to sync many subtitle files in batch
- you want multiple sync engines in one tool

## When to avoid
- you need subtitle translation or editing of subtitle text
- you need a library to embed in your own code rather than a standalone app
- you need embedded subtitle extraction from containers

## Facets
- artifact type: application
- maturity: active
- function: video-processing, gui, cli
- domain: media, developer-tools
- platform: windows, python, cross-platform
- tags: subtitles, srt, vtt, subtitle-sync, ffmpeg, drag-and-drop, batch-processing, video, linux, macos, desktop

## Member repositories
- denizsafak/AutoSubSync (main) score 91

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:47.382969+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:33:27.468345+00:00, confidence not recorded.
  - readme: https://github.com/denizsafak/AutoSubSync (fetched 2026-08-28T04:03:47.382969+00:00, sha 5196fc0995ab)
  - homepage: https://pypi.org/project/assy/ (fetched 2026-08-29T12:38:01.147551+00:00, sha 4b4e8fead74a)
- Data as of 2026-08-30T08:39:29.467469+00:00.