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AI-powered video translation and dubbing tool with professional-grade translations and one-click deployment.
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KrillinAI is an open-source video translation and dubbing tool that converts videos between languages and formats for platforms like YouTube, TikTok, and Bilibili, using AI for transcription, translation, and text-to-speech.
KrillinAI is an open-source (GPL-3.0) video localization and enhancement tool developed by the Krillin AI team. It takes video files (local uploads or URLs from YouTube/Bilibili) and outputs translated subtitles, dubbed audio, reformatted videos for portrait/landscape modes, and cover images. It runs on Windows, Linux, and macOS, offering desktop, web UI, and CLI interfaces.
skills/ for AI agent integration.render-vertical command to convert to portrait mode, add short subtitles, and generate a vertical video with bilingual subtitles.krillinai_manifest.json.The tool follows a modular pipeline: 1) Download video or accept local file. 2) Transcribe speech using chosen ASR provider. 3) Translate and segment subtitles via LLM. 4) Optionally generate TTS dubbing. 5) Render final video with embedded subtitles in either landscape or portrait mode. Each stage can run independently via CLI, and the manifest file tracks artifacts for reuse.
Pros: Fully open-source (GPL-3.0); supports extensive ASR, LLM, and TTS providers; CLI and Agent skills for automation; Docker and cross-platform support; active development with 10.4k GitHub stars.
Cons: macOS desktop version requires manual trust due to missing signing; desktop version described as "newly released with some bugs"; no native iOS/Android app; voice cloning limited to Alibaba Cloud provider.
KrillinAI is free and open-source under the GPL-3.0 license. There are no paid tiers; users pay only for third-party API services they choose (e.g., OpenAI, Alibaba Cloud).
Yes, KrillinAI is completely free and open-source (GPL-3.0). You can download and use it without any cost. However, you may need to pay for external API services if you choose cloud-based ASR, LLM, or TTS providers.
Windows, Linux, and macOS are all supported. The macOS version requires a manual trust workaround (using xattr and chmod commands) because the application is not signed.
Yes, voice cloning is supported when using Alibaba Cloud as the TTS provider. You can upload a short voice sample and the tool will clone it for dubbing.
Yes, KrillinAI is compatible with any LLM that supports the OpenAI API format. This includes locally deployed open-source models via tools like Ollama or vLLM, as well as cloud providers like DeepSeek, Gemini, and Tongyi Qianwen.
Download the latest release from GitHub, extract it, and follow the README. For the desktop version, double-click to run; for the non-desktop version, create a config.toml file, configure your API keys, and open http://127.0.0.1:8888 in a browser.