Upload a video and get a timestamped .srt transcript — powered by an open-weight AI speech model that runs entirely in your browser.
Files are processed securely in your browser. Nothing is uploaded.
Upload a video and click Generate Subtitles to see the transcript here.
It uses OpenAI's open-weight Whisper model (the same family used by many paid transcription tools), so accuracy is generally strong for clear speech. Background noise, heavy accents, or overlapping speakers can reduce accuracy — always skim the transcript before using it.
The multilingual Whisper model used here supports dozens of languages, including English and Hindi/Hinglish content.
No. Audio extraction and transcription both run in your browser. The video and audio never leave your device.
The AI model (~280MB) downloads once and is cached by your browser. Later runs on the same device start much faster since it's served from cache.
Add the video you want captions or subtitles for.
Audio is extracted and transcribed with timestamps, right in your browser.
Check the timed segments before downloading.
Upload it directly to YouTube, or use it in any video editor.
Processing takes seconds, no waiting in a queue.
No signup or account required.
About this tool
Generate a timestamped .srt subtitle file for any video using an AI speech-recognition model that runs in your browser.
Most video is now watched with sound off by default on social platforms, and accessibility requirements increasingly expect captions as standard, not optional — both make subtitles a normal production step rather than an afterthought. This tool extracts audio from an uploaded video and transcribes it with an open-weight AI speech-recognition model (Whisper) that runs entirely in your browser, producing a timestamped .srt file ready to upload to YouTube or import into a video editor.
Auto Subtitle Generator is usually faster than manual video workflows because it reduces repetitive steps and keeps the complete flow in one interface. Compared with heavyweight desktop software, this tool prioritizes speed, accessibility, and simpler controls so users can finish routine tasks quickly without installation or licensing friction. For users who mainly need adding captions to videos for accessibility and muted-autoplay viewing, this focused approach often gives better execution speed and cleaner day-to-day usability, while still producing a timestamped .srt subtitle file that is suitable for practical work.
Privacy-first: Where browser-based processing is available, your files stay on your device. No file is uploaded to our servers unless strictly required for the tool to function.
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