Free AI Subtitle Generator

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.

Please enter a valid YouTube URL

Supports youtube.com, youtu.be, shorts, and live links

Fetching info
Transcribing
Formatting
99
Languages supported
96%
Average accuracy
907
Videos transcribed
Free
No signup required

How to Generate Subtitles Automatically

Create accurate video subtitles in three simple steps.

1

Paste the Link

Copy the URL of any YouTube video and paste it into the input field above. We support all YouTube URL formats.

2

AI Processes Audio

Our AI extracts the audio track and transcribes it with high accuracy. Speaker detection and language identification happen automatically.

3

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.

FeatureSozaiYouTube Captions
Accuracy96%+ (AI model)~70-85% (auto-generated)
Speaker detection Yes No
Copyable full text One click Not easily
Searchable transcript Full-text search No
Clickable timestamps Jump to moment No
Works when captions disabled Always works Only if enabled
Permanent shareable link Unique URL No
Download formats SRT, Markdown, TXT No

Supported Languages

EnglishSpanishFrenchGermanJapaneseChineseKoreanArabicRussianPortugueseHindiTurkishItalianDutchPolishSwedishThaiVietnameseIndonesianUkrainianHebrewCzechGreekRomanianEnglishSpanishFrenchGermanJapaneseChineseKoreanArabicRussianPortugueseHindiTurkishItalianDutchPolishSwedishThaiVietnameseIndonesianUkrainianHebrewCzechGreekRomanian

Subtitle Generator FAQ

Common questions about generating subtitles from YouTube videos.

How do I generate subtitles for a YouTube video?
Paste the YouTube video URL above and click "Transcribe." Our AI extracts the audio, transcribes it with timestamps, and generates downloadable subtitles. The process takes 2-15 minutes depending on video length.
Is the subtitle generator free?
Yes, Sozai generates subtitles from YouTube videos completely free. No account or signup required. You get full subtitles with speaker detection and SRT download.
Can I download subtitles as an SRT file?
Yes. After the subtitles are generated, click the SRT button on the result page to download a standard SRT subtitle file compatible with all video editors and media players.
Can I get timestamps in the transcript?
Yes, every transcript includes clickable timestamps. Each segment shows when it was spoken in the video. Click any timestamp to jump to that exact moment in the embedded YouTube player.
Does it detect different speakers?
Yes, speaker diarization is enabled by default. The AI identifies different voices and labels them as Speaker A, Speaker B, etc. This works especially well for interviews, podcasts, and conversations.
What YouTube URL formats are supported?
We support all YouTube URL formats: standard watch links (youtube.com/watch?v=...), short links (youtu.be/...), shorts (youtube.com/shorts/...), embeds, live streams, and YouTube Music links.
What video formats are supported?
Currently we support YouTube videos in all URL formats: standard watch links, short links, Shorts, live streams, and YouTube Music. Paste any YouTube URL to generate subtitles.

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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.

Generate Subtitles Now

Paste any YouTube link and get accurate subtitles with timestamps. Free, fast, downloadable.

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