Tools

All-in-one video translation and dubbing: chains speech recognition, subtitle translation, multi-speaker AI voiceover and audio-video muxing, with local or online models like Faster-Whisper, DeepSeek and Edge-TTS. cli.py supports headless batch runs. Needs FFmpeg.

CLI version of the VideoCaptioner subtitle assistant: transcribes courses, lectures and interviews, uses an LLM to segment, proofread and translate, then burns subtitles into the video. Free ASR and Bing translation work out of the box; LLM refinement needs an API key. Python 3.10 to 3.12.

Translates a video's SRT subtitles into other languages and generates AI voice lines synced to the timings, producing translated subtitles and dubbed audio tracks. Needs Python, FFmpeg and Google Cloud, Azure, DeepL or ElevenLabs API keys; configure the ini files, then run python main.py.

Open-source video translation and dubbing: transcribes lectures, courses and other videos, translates them into one of 33 languages, synthesizes a dub aligned to the picture, and can export SRT subtitles. Needs Python 3.10+, FFmpeg, the violin CLI and a pay-as-you-go Together AI API key.

Official skill for BaoCut, a subtitle app by Baoyu: transcribe audio and video, generate and translate subtitles, check speakers, adjust timing and export SRT or finished video. Needs BaoCut on an Apple silicon Mac (macOS 14+); on Windows the skill fetches a preview CLI.

Uses an LLM to translate SRT, ASS and VTT subtitles into any language in batches, convert formats and transcribe audio or video. Install the CLI from source (Python 3.10+); needs an API key (e.g. OpenRouter) or a local model, and subtitles go to that provider.

Voice skills: TTS with subtitle timing, emotional character voices, translated dubbing, two-host news podcasts, sound effects and songs. Narration and podcasts work with local Kokoro or free voices; emotion, cloning, dubbing, effects and songs need a Noiz API key. Never clone voices to deceive.

Automatically aligns subtitles to audio and video with a neural network, and can transcribe subtitles with Whisper or translate them with local models; supports 10+ formats such as SRT, TTML and SCC. Needs Python 3.9-3.12 and FFmpeg; transcription and translation need the llm extra.

Official ElevenLabs skills: text to speech, speech to text, sound effects and music generation, voice changing, vocal isolation, multilingual dubbing and building voice agents. Needs an ElevenLabs API key.

Official HeyGen skill: translates existing videos into 175+ languages with dubbing that clones the speaker's voice and re-syncs lips; you can proof subtitles before rendering. Needs a HeyGen account with credits and an API key plus HeyGen CLI, or the HeyGen MCP.

Official iFlytek skills: machine translation, video translation and dubbing, Chinese document proofreading, PDF, image and invoice OCR, speech-to-text and TTS, plus contract review (lawyer check needed). Needs iFlytek open platform services and keys; contract review also needs OCR and LLM APIs.

Official iFlytek skill (beta): translates and AI-dubs videos between Chinese, English, Japanese, Korean, Russian, French, Spanish, Arabic and Cantonese, tracks jobs, fetches subtitles and video. Needs iFlytek API keys and Python 3; input must be an online MP4 (Alibaba OSS per docs), up to 5 min.

Perso AI's official plugin: dub videos into other languages with lip sync, transcribe to SRT, translate and burn in subtitles, cut vertical clips. Subtitle and clip tools are free and local; dubbing, lip sync and transcription need a Perso account, billed per second. Needs Node.js 18+.