Core Engine
Powered by state-of-the-art AI, Captrix intelligently analyzes your audio and automatically syncs dynamic, high-retention text animations in real-time. Designed to maximize audience engagement and watch time on every platform.
AI Video Transcription
Upload your video and instantly extract a highly accurate, readable text transcript of all spoken audio. Perfect for repurposing your content for blogs, descriptions, and SEO.
Learn More →Dynamic Auto-Captions
Automatically generate and embed perfectly synced, stylish captions directly into your video. Download the final, watermarked-free MP4 ready to post on any social platform.
Learn More →Precision Video Trimming
Quickly cut out silences, awkward pauses, and mistakes before applying captions. Keep your videos fast-paced and highly engaging with our easy-to-use timeline trimmer.
Learn More →How to Add Captions to Videos
A seamless, 4-step workflow that turns raw clips into viral hits in under a minute.
Upload Video
Start by selecting a video from your gallery. Captrix supports MP4, MOV, and all major video formats. Our secure on-device processing ensures your raw, unedited footage remains completely private before the AI goes to work.
Trim & Select Range
Don't want to process the whole video? Use our intuitive timeline tools to cut out the dead space. Select exactly the portion of the video you want to transcribe, saving you processing time and helping you focus on the most engaging hooks.
AI Transcription & Styling
Let our state-of-the-art AI automatically transcribe your audio with frame-perfect synchronization. Then, pick your favorite font, vibrant color palette, and dynamic karaoke animation style to make your subtitles pop on screen.
Export & Share
Once you are happy with the preview, hit export. Captrix renders your fully-captioned video in crystal-clear HD resolution without any watermarks. Save it directly to your device, ready to go viral on TikTok, Reels, or YouTube Shorts!
Built for Growth
Everything you need to maximize your reach and protect your content.
Empowering Creators
Whether you're a full-time influencer, small business owner, educator, or social media manager, Captrix gives your videos a professional edge without the need for expensive, complicated software like Premiere Pro. Produce studio-grade content straight from your browser.
Of people scroll with their volume muted. Without bold subtitles, your message gets ignored.
Total Data Privacy
Your content remains yours. We never use your videos to train public AI models.
- ✓ Secure on-device processing
- ✓ Audio exclusively analyzed for transcription
- ✓ Zero data sold to third parties
- ✓ Automatic deletion after processing
Frequently Asked Questions
Everything you need to know about our AI subtitle generator.