Top 5 Python caption Projects

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1. ffsubsync

   1 32 7,223 6.0 Python

   Automagically synchronize subtitles with video.

   

   Project mention: Ten years after the last release, Aegisub 3.4.0 released | news.ycombinator.com | 2024-12-21

   Aegis is great for authoring new subtitles but if you're just looking to sync then take a look at https://github.com/smacke/ffsubsync

   Plex also recently added auto-sync subtitles to the Plex Pass

   https://support.plex.tv/articles/auto-sync-subtitles/

2. InfluxDB

   www.influxdata.com featured

   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. youtube-transcript-api

   2 7 5,680 8.7 Python

   This is a python API which allows you to get the transcript/subtitles for a given YouTube video. It also works for automatically generated subtitles and it does not require an API key nor a headless browser, like other selenium based solutions do!

   

   Project mention: The Singoff-agen — Learning Through Dumb Projects | dev.to | 2025-04-20

   First, I had to get the data. I thought this would be a good place to use Google Cloud API which can extract Youtube transcripts. But while setting up this service, I realized there was an even easier way; by extracting the auto-generated captions from YouTube. (Thankyou _jdepoix _for the library to do so, https://github.com/jdepoix/youtube-transcript-api).

4. subaligner

   3 3 479 5.9 Python

   Automatically synchronize and translate subtitles, or create new ones by transcribing, using pre-trained DNNs, Forced Alignments and Transformers. https://subaligner.readthedocs.io/

   

5. webvtt-py

   4 1 214 7.9 Python

   Read, write, convert and segment WebVTT caption files in Python.

   

6. pycaps

   5 2 5 9.4 Python

   Create beautiful, animated video subtitles with Python and CSS.

   

   Project mention: Adding Animated Subtitles to Videos with Python | dev.to | 2025-06-29

   Split the transcription into shorter segments using LimitByCharsSplitter (see more details about the structure in the docs).

7. Stream

   getstream.io featured

   Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.

   

Python captions related posts

• Adding Animated Subtitles to Videos with Python

  1 project | dev.to | 29 Jun 2025

• Show HN: Subaligner – A Multilingual Subtitle Generator

  1 project | news.ycombinator.com | 12 Mar 2023

• Show HN: Containerized subtitle synchronizer and translator

  1 project | news.ycombinator.com | 31 Oct 2021

Index

Sponsored

InfluxDB – Built for High-Performance Time Series Workloads

InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

www.influxdata.com

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