Extract Subtitles from Video Online
AI speech recognition automatically turns the speech in your video into timestamped text—export SRT, VTT and TXT in one click, entirely processed in your browser
AI auto-recognition
A speech recognition model automatically transcribes the dialogue in your video, with no manual line-by-line typing—get a complete transcript and timestamps in minutes
Multi-language + multi-format
Supports a dozen-plus languages including Chinese, English, Japanese and Korean, and exports SRT/VTT subtitles plus TXT transcripts for subtitling, note-taking, translation and more
Local processing protects your privacy
Audio extraction, model inference and text generation all run locally in your browser; videos are never uploaded to any server, so even private content is safe
Drag and drop video files here
or
Supports MP4, WebM, MOV, MKV, AVI, and more
Use cases for extracting video subtitles
Content creation & office work
- Turn interviews, podcasts and meeting recordings into transcripts in one click for quick minutes and key takeaways
- Auto-generate subtitle files for short videos and Vlogs—proofread and publish directly to boost completion rates
- Turn video content into transcripts for repurposing, rewriting into articles or social posts
Learning & accessibility
- Extract subtitles from foreign-language videos as listening material, pairing intensive listening with line-by-line reading of the original text
- Turn online courses and lecture recordings into text for keyword search, note-taking and review
- Add subtitles to videos to improve accessibility for the hearing-impaired and viewers in muted environments
How to Use
Upload Video
Click the upload area or drag and drop a video file. Supports MP4, MKV, WebM, MOV, and more.
Choose language & recognition tier
Select the spoken language of the video and pick the recognition speed and accuracy you need
Start extraction
Click "Start subtitle extraction" and AI completes audio recognition and text generation locally
Preview & export
Preview the recognition result and download SRT/VTT/TXT, or copy the plain text in one click
About the video subtitle extractor
VideoKit's online video subtitle extractor is built on WebCodecs and local AI speech recognition. It first extracts the audio from your video, then uses a speech recognition model to transcribe it into timestamped text—all without any server upload.
Unlike "reading an existing subtitle track", this tool generates subtitles from the audio content, so it can extract text even when the video has no subtitles. Results can be exported as SRT or VTT subtitles, or a TXT transcript.
All processing happens locally in your browser, so your video and the recognized text never leave your device. Chrome or Edge is recommended for best performance, and a higher-accuracy tier is recommended for long videos.
Frequently Asked Questions
How does this tool extract subtitles?
This tool uses AI speech recognition (ASR) to automatically detect the speech in your video and turn it into timestamped text subtitles. Rather than reading an existing subtitle track from the file, it transcribes the audio by "listening", so it can produce text even when the video has no subtitles at all. Recognition and transcription run entirely in your browser.
Which subtitle formats can I export?
Three formats are supported: SRT (the most universal subtitle format, with sequence numbers and timestamps), VTT (the web-standard format for HTML5 video) and TXT (a plain-text transcript without timestamps, ideal for meeting notes and content drafts). After recognition you can download any of them, or copy the plain text in one click.
Which video languages are supported?
Supported languages include Chinese (Simplified/Traditional), English, Japanese, Korean, Spanish, French, German, Portuguese, Italian, Russian, Arabic, Hindi, Indonesian, Vietnamese, Turkish and more. Select the spoken language of your video before extracting for the most accurate results.
Will my video files be uploaded to a server?
No. Audio extraction, AI model inference and subtitle generation all happen locally in your browser; the video file is never uploaded to any server. Your video and the recognized text stay entirely under your control, so you can safely process private content.
How do I choose recognition speed and accuracy?
The tool offers several recognition tiers. For speed, choose "Fastest" or "Very fast"—great for quickly previewing short videos. For accuracy, choose "More accurate" or "Most accurate" (the most accurate tier requires browser WebGPU support). Long videos, Chinese, accents or noisy audio are better served by a higher-accuracy tier. The first time you use a tier, its AI model is downloaded to your browser cache.
Can the extracted subtitles be used directly with videos?
Yes. The exported SRT/VTT files carry standard timestamps and can be loaded directly as external subtitles in players like VLC and PotPlayer, or embedded into a video as soft subtitles using our "Add Subtitles to Video" tool. AI recognition may contain minor errors, so a quick proofread after export is recommended.