What it does
VideoCaptioner handles the whole subtitle process for a video. It listens to the audio and writes out what is said, splits the text into readable subtitle lines, uses an AI language model to correct mistakes, translates the subtitles into other languages and can burn them into the video.
Some features are free and need no setup, such as certain online speech-recognition and Bing or Google translation services. The AI clean-up and AI translation need a key from a model provider. It can also download videos from sites such as YouTube and create dubbed audio.
It has a desktop app and a command-line tool, plus a skill for Claude Code. The README is in Chinese.
Who it's for
Video creators, translators and learners who need subtitles, especially in Chinese and other languages.
Can I use it without coding?
With some setup. There is a Windows installer; on other systems you install it with pip or a terminal script. AI features need a provider key. New to this? Start here.
Can I run it?
- Cost
- FreeNothing to pay or sign up for.
- Runs on
- Windows, Mac
- Privacy
- Your choice: run it on your device or use an online service
- API key
- Not needed
Try it
- Open the desktop app and load a video to create or translate subtitles.
- Optionally add an AI model API key for subtitle polishing and better translation.
Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?
Before you install
- Only download from the official GitHub page or the official download page above. Copies with similar names exist for many popular projects.
- License (GPL-3.0): Free to use; if you share a changed version, you must share your source code too.
- More on staying safe