Subtitle Generator for Online Courses
Boost course completion rates by 40% with professional subtitles. AI-powered captions for Udemy, Teachable, Thinkific, and more.
How to Add Subtitles to Your Online Course
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
- 40%higher course completion with subtitles
- 91%of learners say captions help comprehension
- $400Bglobal e-learning market by 2026
- ADAcompliant for accessibility requirements
Everything You Need
Course Platform Ready
Export SRT files compatible with Udemy, Teachable, Thinkific, Kajabi, and all major course platforms.
Batch Processing
Upload an entire course module at once. Process dozens of lectures in minutes, not days.
Multi-Language Support
Translate your course into 100+ languages to reach international students and increase sales.
Technical Vocabulary
AI handles specialized terminology across business, tech, health, and academic subjects with high accuracy.
Why Every Online Course Needs Subtitles
The e-learning industry is projected to reach $400 billion by 2026, and subtitles are becoming a non-negotiable feature for course creators. Platforms like Udemy actively promote courses with subtitles, and students consistently rate captioned courses higher in reviews.
Subtitles transform passive video lectures into active learning experiences. Students can read along while listening, improving comprehension for complex topics. For non-native English speakers — who make up the majority of students on global platforms — captions are essential for understanding accented speech and technical vocabulary.
Course completion rates are the biggest challenge in e-learning. Research from Oregon State University shows that students who use captions perform significantly better on assessments. By adding subtitles, you are not just meeting accessibility requirements — you are directly improving learning outcomes and student satisfaction.
Pro Tips
Subtitle Every Lecture
Don't skip short videos. Consistency matters — students expect captions on every lecture once they see them on the first one.
Use Batch Processing
Upload an entire course module at once. Apply the same clean, readable style across all lectures for a professional look.
Translate for Global Sales
Translating your course into Spanish, Portuguese, and French can dramatically increase sales on Udemy and Teachable.
Review Technical Terms
AI handles most vocabulary well, but quickly review domain-specific terms, acronyms, and proper nouns before publishing.
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 my Udemy course?
Upload your lecture video to SubtitlesFast, auto-generate subtitles with AI, download the SRT file, and upload it to Udemy's subtitle section in your course editor.
Can I add subtitles to an entire course at once?
Yes! Use our batch processing to upload multiple lectures and generate subtitles for all of them in one workflow.
Do subtitles really improve course completion rates?
Studies show courses with subtitles see up to 40% higher completion rates. Learners can follow along in noisy environments, review complex concepts, and study in their non-native language.
What subtitle format do course platforms accept?
Most platforms (Udemy, Teachable, Thinkific, Kajabi) accept SRT files. SubtitlesFast exports in SRT and VTT formats.
How much does it cost to subtitle an entire course?
You can try SubtitlesFast for free with 3 video exports. Premium plans start at €13/month for unlimited exports — perfect for multi-lecture courses.
Start Adding Subtitles Today
Get professional subtitles in minutes. No credit card required.
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