Captioner is an AI subtitle generator and editor for videos. Upload a video, get accurate subtitles in 98+ languages, edit them in your browser, translate in one click, and export SRT/VTT files or a video with captions burned in.
Under the hood, Captioner is AI speech-to-text software built specifically for transcribing videos into subtitles. It converts MP4 and MOV videos up to 2 hours long into text in 98+ languages with 98%+ accuracy, then adds extra processing to align timestamps precisely, including word-level timestamps.
Key features:
- Browser-based subtitle editor for fixing wording and timing.
- Import an existing transcript and have it auto-aligned to the speech.
- One-click translation of subtitles into another language.
- Export subtitle files in SBV, SRT or VTT for YouTube and editing software.
- Render a video with open (burned-in) captions in a chosen font style.
- Free online subtitle tools: SRT, VTT, SBV and ASS converters and editors.
Captioner is a good fit for YouTubers, short-form video creators, educators and marketers who want accurate captions and translated subtitles without manual transcription.
