AI-powered — Deepgram Nova-3Generate captions
automatically
Upload any audio or video file. Get accurate captions with timestamps, ready to download as SRT, VTT, or plain text.
Drop an audio or video file
MP3, WAV, M4A, MP4, WebM, OGG, FLAC — up to 100MB
AI-Powered
Deepgram Nova-3 delivers near-human accuracy with speaker diarization and punctuation.
SRT, VTT & Text
Export in any format. Compatible with YouTube, TikTok, Premiere, DaVinci, and more.
Adjustable
Control characters per line for perfect subtitle timing. Preview before downloading.
Frequently asked questions
Is the caption generator free?
Yes, completely free. Generate captions for your videos and audio files with no signup or credit card required.
What languages are supported?
Our AI caption generator supports 30+ languages including English, Spanish, French, German, Portuguese, Japanese, Korean, and more.
How accurate are the auto-generated captions?
Our AI-powered transcription achieves 95%+ accuracy for clear audio. You can edit any captions after generation to fix any errors.
What video and audio formats are supported?
MP4, MOV, WebM, MP3, WAV, and most common video and audio formats are supported. Files are processed locally in your browser.
Can I customize the caption style?
Yes. Choose from multiple caption styles including Hormozi, MrBeast, Ali Abdaal, and more. Customize fonts, colors, positioning, and animation effects.