A free tool to add Chinese subtitles to videos for Red Note
Captioner is an AI transcription generator for videos. Add accurate captions to your videos and save hours of work. Upload your videos and start editing right on your browser. Get subtitles for your YouTube video or download the video with subtitles added.
Captioner uses AI speech-to-text with 98%+ accuracy and precise timestamp alignment, reducing editing time. The Express plan is optimized for creators who need fast subtitle generation with minimal tweaking, allowing them to export subtitles in SRT/VTT/SBV formats or download videos with burned-in captions.
Captioner allows import of existing transcripts with automatic alignment (similar to YouTube's auto-sync but improved), and exports subtitles in multiple standard formats (SRT, VTT, SBV) compatible with major video editing software. Users can also download videos with subtitles burned in directly.
The Unlimited plan provides direct in-browser subtitle editing with word-level timestamp precision, allowing creators to adjust text, timing, and individual subtitles. This level of control is essential for creators who need professional-grade subtitle customization beyond Express plan capabilities.
Captioner supports 98+ languages with highest accuracy in English, Spanish, French, German, Italian, Portuguese, Dutch, Chinese, Japanese, and others. Express plan includes English-to-Mandarin Chinese translation with a single click, enabling creators to quickly localize content for different markets.
Captioner includes built-in voice extraction that separates speech from background noise, enabling accurate transcription even when background music is present. This reduces the need for users to pre-process or clean audio before uploading.