AI Subtitle Generator — Auto-Generate Subtitles for Any Video
Paste a YouTube link to generate accurate subtitles with timestamps and speaker labels. Download as SRT. Supports 99 languages.
How to Generate Subtitles Automatically
Create accurate video subtitles in three simple steps.
Paste the Link
Copy the URL of any YouTube video and paste it into the input field above. We support all YouTube URL formats.
AI Processes Audio
Our AI extracts the audio track and transcribes it with high accuracy. Speaker detection and language identification happen automatically.
Download Subtitles
Get the full subtitle file with timestamps. Download as SRT, copy text, or share. Speaker labels included.
Why Use Sozai Subtitle Generator
AI-powered subtitles that are more accurate than auto-captions. Speaker detection, 99 languages, free.
99 Languages
Automatic language detection. English, Spanish, Japanese, Arabic, Korean, Hindi, Russian, and 92 more languages transcribed with high accuracy.
Clickable Timestamps
Every segment has a precise timestamp. Click it to jump to that exact moment in the embedded YouTube player on the result page.
Speaker Detection
AI identifies and labels different speakers. See who said what in interviews, podcasts, lectures, and conversations.
Full-Text Search
Search through the entire transcript instantly. Find the exact word or phrase and jump to where it was said in the video.
SRT & Markdown Download
Download subtitles as SRT files ready for video editors. Or get Markdown format for blog posts and documentation.
Permanent Link
Every transcript gets its own page with a unique URL. Share it, bookmark it, or come back to it anytime.
Who Uses Auto-Generated Subtitles
Content creators, educators, and accessibility advocates rely on accurate subtitles every day.
Students & Researchers
Turn lecture videos into study notes. Search for specific topics across long educational content without rewatching hours of footage.
Journalists & Writers
Get accurate quotes from interviews and press conferences. Verify what was said with exact timestamps for citations.
Accessibility
Make video content accessible to deaf and hard-of-hearing viewers. Provide text alternatives when captions are missing or auto-generated poorly.
Content Creators
Repurpose your YouTube videos into blog posts, social media snippets, newsletters, or podcast show notes with the full transcript.
SEO & Marketing
Add transcripts to your website pages to make video content indexable by search engines. Boost organic traffic with text-based content.
Language Learners
Read along while watching videos in your target language. Use timestamps to replay difficult sections and study pronunciation.
AI Subtitles vs. YouTube Auto-Captions
YouTube's built-in captions miss words, ignore speakers, and can't be downloaded. Our AI does better.
| Feature | Sozai | YouTube Captions |
|---|---|---|
| Accuracy | 96%+ (AI model) | ~70-85% (auto-generated) |
| Speaker detection | ||
| Copyable full text | ||
| Searchable transcript | ||
| Clickable timestamps | ||
| Works when captions disabled | ||
| Permanent shareable link | ||
| Download formats |
Supported Languages
Subtitle Generator FAQ
Common questions about generating subtitles from YouTube videos.
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Auto-Generate Subtitles with AI
Creating subtitles manually is tedious and time-consuming. Sozai uses advanced AI speech recognition to automatically generate accurate subtitles from any YouTube video. The AI identifies the language, detects individual speakers, and produces word-by-word captions with precise timestamps — all without manual effort.
AI Subtitle Generation vs. Manual Captioning
Traditional subtitle creation requires listening to audio and typing text frame by frame. Our AI processes the entire video at once, achieving 96% accuracy across 99 languages. It handles accents, technical jargon, and overlapping speech far better than manual methods or basic auto-caption tools.
Download Subtitles in SRT Format
Every generated subtitle can be downloaded as a standard SRT file. SRT is the most widely supported subtitle format, compatible with Premiere Pro, Final Cut Pro, DaVinci Resolve, VLC, and all major video platforms. You can also download as Markdown for written content.
Free Auto Subtitle Generator for YouTube
Sozai provides completely free subtitle generation for YouTube videos. No watermarks, no account required, no limits on video length. Every generated subtitle page gets a permanent URL you can share or bookmark. Speaker detection and 99-language support are included at no cost.