YouTube Subtitle Generator
Add professional subtitles to your YouTube videos in seconds. AI-powered transcription with 99% accuracy.
How to Add Subtitles to YouTube Videos
Upload Your Video
Drop your video file or paste a URL. We support MP4, MOV, and all common formats.
Auto-Generate Subtitles
Our AI transcribes your video with word-level accuracy. Edit any mistakes with our built-in editor.
Export & Share
Download your video with burned-in subtitles, or export as SRT for any platform.
Why Subtitles Matter
- 69%of YouTube viewers watch with captions on
- 40%increase in watch time with subtitles
- 466Mpeople worldwide have hearing loss
- SEOYouTube indexes captions for search rankings
Everything You Need
Custom Styles
Match your brand with custom fonts, colors, and animations. Stand out from generic auto-captions.
100+ Languages
Generate subtitles in any language, or translate your videos to reach a global audience.
Lightning Fast
Get subtitles in minutes, not hours. Perfect for daily vloggers who need to post quickly.
Easy Editing
Fix any transcription errors with our intuitive subtitle editor. Word-level timing control.
The Complete Guide to YouTube Subtitles
YouTube is the second largest search engine in the world, and subtitles play a crucial role in making your content discoverable. When you add captions to your videos, YouTube can index the text, improving your chances of appearing in search results for relevant queries.
Beyond SEO, subtitles dramatically improve viewer retention. Studies show that videos with captions have 40% higher watch time because viewers can follow along even in noisy environments or when they cannot play audio. This is especially important for mobile viewers, who make up over 70% of YouTube watch time.
Professional subtitles also make your content accessible to the 466 million people worldwide with hearing loss, and to the billions of viewers who speak different languages. With SubtitlesFast, you can generate accurate subtitles in minutes and even translate them to reach a global audience.
Pro Tips
Optimize for YouTube Search
Include relevant keywords naturally in your subtitles. YouTube indexes caption text, so accurate transcriptions that include your target keywords can boost your video rankings.
Use Burned-In Captions for Shorts
For YouTube Shorts, always burn subtitles directly into the video rather than using SRT files. Shorts viewers scroll quickly, and eye-catching captions help stop the scroll.
Match Your Brand Colors
Use custom subtitle styles that match your channel branding. Consistent colors and fonts make your content instantly recognizable and more professional.
Keep Lines Short
Limit each subtitle line to 42 characters maximum. This ensures readability on mobile devices where most YouTube viewing happens.
Trusted by 10,000+ Content Creators
“I post daily and SubtitlesFast saves me hours every week. The accuracy is incredible.”
— Sarah
Travel Vlogger (500K subscribers)
“Finally, subtitles that don't look like garbage. My engagement went up 30% after switching.”
— Marcus
Tech Reviewer
“The AI picks up my accent perfectly. Way better than YouTube's auto-captions.”
— Priya
Lifestyle Creator
Frequently Asked Questions
How do I add subtitles to a YouTube video?
Upload your video to SubtitlesFast, click "Auto Subtitle," customize the style, then export with burned-in captions or download the SRT file to upload to YouTube Studio.
Is SubtitlesFast better than YouTube's auto-captions?
Yes. YouTube's auto-captions are often inaccurate and you can't customize their appearance. SubtitlesFast offers 99% accuracy and fully customizable styles.
Can I add subtitles to an existing YouTube video?
Yes! Download your video from YouTube, upload to SubtitlesFast, add subtitles, then re-upload to YouTube as a new video.
How much does it cost?
You can try SubtitlesFast for free with 3 video exports. Premium plans start at €13/month for unlimited exports.
What languages are supported?
We support 100+ languages for transcription and translation, including Spanish, French, German, Portuguese, Japanese, Korean, Hindi, Arabic, and more.
Start Adding Subtitles Today
Get professional subtitles in minutes. No credit card required.
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