Trusted by 100,000+ users worldwide
AI Subtitle Generator
Generate accurate subtitles instantly using advanced speech to text technology. Create auto captions, add subtitles to your videos, and edit them بسهولة with a powerful subtitle tool.
Drag & drop your file here or browse to upload
Accepted formats: MP4, MOV, AVI, MKV, WebM · Max 500MB
Uploading...
Done! Your file is ready to download.
No sign up required
Add subtitles in seconds
100+ languages supported
+ 50M
Subtitles
Generated
100K +
users
95% +
Accuracy
rate
100 +
supported
How to add subtitles to video
Follow three simple steps to generate automatic subtitles, create captions, and export your video with SRT files
1. Upload Your Video
Upload your video file or paste a link from YouTube, Google Drive, or other platforms. Supports all major formats.
2. Generate subtitles with AI
Use an auto subtitle generator to convert speech to text and create accurate, time-synced subtitles in seconds.
3. Edit and export subtitles
Edit text, timing, and styles, then export as SRT, VTT, or embed subtitles directly into your video.
Video subtitles generator for all major formats
Add subtitles to MP4, MOV, AVI, and more using a free subtitle generator.
MP4
Most common video format, widely supported across all devices and platforms
MOV
Apple’s QuickTime format, perfect for Mac users and professional editing
AVI
Classic video format with excellent quality and wide compatibility
MKV
Open-source container format supporting multiple audio and subtitle tracks
WebM
Web-optimized format designed for HTML5 video streaming
FLV
Flash video format, commonly used for online video content
And many more formats including WMV, MPEG, 3GP, and custom formats.
Why use Summary AI for automatic subtitles?
Create auto captions, automatic subtitles, and multilingual captions with ease.
Automatic subtitles
Create auto subtitles instantly with AI-powered speech to text.
Supports 100+ languages
Generate subtitles in multiple languages and reach global audiences.
All video formats
Works with MP4, MOV, AVI, MKV, WebM, and more.
Secure processing
Your videos and subtitles are private and protected.
Generate accurate subtitles with speech-to-text
Turn audio into precise auto subtitles and captions with advanced speech recognition.
-
Automatic speaker detection
Detects speakers and dialogue automatically -
Smart punctuation
Clean formatting with accurate punctuation. -
Perfect subtitle sync
Time-aligned subtitles for smooth playback
Add captions and improve engagement
Subtitles help viewers understand your content and keep them watching longer.
-
Increase engagement
Videos with auto captions boost watch time. -
Improve accessibility
Make videos easier to follow without sound. -
Boost SEO
Captions help search engines index your content. -
Reach more viewers
Translate subtitles and grow globally.
Customize subtitle styles
Create subtitles that match your video style and branding.
-
Font options
Choose from clean, readable fonts. -
Colors & backgrounds
Style your subtitles with custom colors or transparent backgrounds for better visibility -
Positioning
Place subtitles anywhere on your video.
Perfect for creators, teams, and businesses
Trusted by professionals across industries
Content creators
YouTubers, TikTokers, and social media creators use subtitles to increase engagement and reach wider audiences
Marketers
Marketing teams add captions to video ads, product demos, and social content to maximize impact
Educators
Teachers and trainers make educational videos accessible to all students with accurate subtitles
Trusted by creators worldwide
Thousands of users rely on Summary AI to generate subtitles automatically, convert audio to text, and improve their video content.
“This tool saved me hours of work. The auto subtitles are incredibly accurate, and the editor makes it easy to fine-tune everything.”
SM
Sarah Miller
YouTube Creator
“We use this for all our marketing videos. The AI subtitle generator helps us reach customers globally.”
JC
James Chen
Marketing Director
“Adding subtitles to my lectures improved accessibility and student engagement. The results are excellent.”
EP
Emily Parker
Online Educator
More tools to power your video workflow
Explore more tools to create subtitles, convert audio to text, and improve your video workflow.
Summary AI Learning Hub
Expert advice, tips & how to guides about transcriptions, summaries and productivity. Get the most out of our summaries.
Add subtitles to video FAQs
Common questions about our subtitle generator
What AI can generate subtitles automatically?
Summary AI is an advanced AI subtitle generator that automatically converts speech to text and creates accurate subtitles. Simply upload your video, and the tool will generate auto subtitles in seconds.
Why are subtitles important for videos?
Subtitles improve accessibility, increase engagement, and help viewers understand content without sound. They also boost SEO by making your video content searchable.
How do I add subtitles to a video using AI?
Upload your video to Summary AI, and the auto subtitle generator will create subtitles automatically. You can then edit, customize, and export them or embed them directly into your video.
Is the subtitle generator free to use?
Summary AI offers a free plan or trial for generating subtitles. Paid plans unlock more features like longer videos, faster processing, and advanced subtitle customization.
Can I add subtitles to YouTube videos?
Yes. You can generate subtitles using Summary AI and upload them to YouTube as SRT or VTT files, or embed them directly into your video before publishing.
How do I add subtitles to an existing video?
Upload your existing video to the subtitle generator, and it will automatically create subtitles. You can edit timing, text, and styles before exporting or embedding them.
How do I add SRT subtitles to a video?
You can upload an SRT file or generate one using Summary AI. Then, either attach it to your video or burn (embed) subtitles directly into the video.
Is there a free subtitle generator without watermark?
Yes. Summary AI offers a free subtitle generator with options to export subtitles. Depending on your plan, you can create subtitles without watermarks.
Add subtitles to video free in seconds
Generate accurate subtitles with AI and make your content accessible instantly
No signup required · Fast AI subtitles · 100+ languages
