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Caption Generator
AIAuto-generate captions from any video or audio. Edit inline. Export SRT, VTT or TXT.
100% PrivateNo Upload12 LanguagesSRT · VTT · TXT
Drop your video or audio here
MP4, MOV, AVI, MKV, WebM, MP3, WAV, M4A…
Browser Speech AI
Uses the Web Speech API built into Chrome and Edge — no server, no upload, instant results.
Edit inline
Click any caption segment to seek the video. Edit text directly. Delete unwanted segments.
SRT · VTT · TXT
Export industry-standard subtitle files ready to upload to YouTube, TikTok, or any platform.
Best results in Chrome or Edge. The Web Speech API requires microphone permission on your browser — this is used to process the video audio, not to record you. For the best accuracy, use clear audio with minimal background noise.
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