Automatic Subtitle Generation
Upload your video and Sonix automatically generates subtitles with precise timing. No manual transcription required—our AI does the heavy lifting.
SRT & VTT Export
Export subtitles in SRT, VTT, or TTML. Compatible with YouTube, Vimeo, Facebook, and all major video platforms.
Perfect Timing Synchronization
Word-level timestamps ensure subtitles appear at exactly the right moment. Adjust timing easily in our online editor if needed.
Video Editor Integration
Export subtitles for Adobe Premiere Pro, Final Cut Pro, DaVinci Resolve, and Avid Media Composer. Professional formats like FCPXML supported.
Burn-In Captions
Add permanent, hardcoded subtitles directly to your video. Customize font, size, color, and position. Download ready-to-share video files.
How do automated subtitles work?
Upload your video to Sonix and our AI automatically transcribes the audio with word-level timestamps. The transcription is formatted into subtitles with proper timing. Edit if needed, then export in your preferred format—SRT, VTT, or TTML.
What subtitle formats does Sonix support?
Sonix exports subtitles in SRT (SubRip), VTT (WebVTT), TTML. We also support professional video editor formats—FCPXML for Final Cut Pro, XML for Adobe Premiere Pro, and compatible formats for DaVinci Resolve.
How accurate are automated subtitles?
Sonix delivers 99% accuracy on clear audio—comparable to professional human transcription. Audio quality, background noise, and accents can affect accuracy. Our editor makes corrections quick and easy.
Can I add subtitles directly to my video?
Yes. Sonix's burn-in feature permanently embeds subtitles into your video file. Customize fonts, colors, size, and position. Download a video file with hardcoded captions ready to share anywhere.
How do I add subtitles to YouTube videos?
Export your subtitles as SRT or VTT, then upload them to YouTube Studio. YouTube accepts both formats. You can also use auto-sync if your timing needs adjustment. Sonix's timing is usually precise enough for direct upload.
Can I edit the subtitles before exporting?
Absolutely. Sonix includes a powerful online editor for reviewing and correcting subtitles. Edit text, adjust timing, split or merge subtitle blocks, and preview your changes before export.
10x faster
What takes hours manually takes minutes with Sonix. Upload your video and have subtitles ready in under 5 minutes per hour of content.
Professional accuracy
AI-powered transcription delivers 99% accuracy on clear audio. Quick editing tools help you polish the final result.
Universal compatibility
Export subtitles as SRT, VTT, or TTML, with FCPXML for Final Cut Pro workflows. Works with Adobe Premiere Pro, Final Cut Pro, DaVinci Resolve, Avid, YouTube, and broadcast systems.
Reach more viewers
Subtitles expand your audience—deaf/hard of hearing viewers, non-native speakers, and anyone watching without sound.
Need subtitles for deaf and hard-of-hearing viewers?
Sonix also creates SDH subtitles with speaker identification, sound effects, and music cues—everything required for full accessibility compliance.
Why is Sonix the best for automated subtitles?
Sonix combines speed, accuracy, and flexibility. Generate subtitles in minutes, not hours. Edit with powerful tools. Export in supported formats. Burn subtitles directly into video. All in one platform—no switching between tools.
Who uses Sonix for automated subtitles?
YouTubers, social media creators, video production companies, corporate communications teams, educators, and broadcasters. Anyone who needs subtitles regularly saves hours every week with Sonix.
How does Sonix compare to YouTube's auto-captions?
Sonix is significantly more accurate than YouTube's auto-captions and offers far more export options. Edit subtitles before publishing, export for other platforms, or burn captions directly into video—capabilities YouTube doesn't provide.
Can Sonix handle large subtitle projects?
Yes. Upload multiple videos for batch processing. Our API enables full automation for high-volume workflows. Enterprise customers subtitle thousands of hours of content monthly.
Testimonials
I’ve been using your transcription software for about a year now. I just wanted to let you guys know that I think it is incredible. I have tried many alternatives, and none of them have been able to match the accuracy of Sonix!
— Ahmad D., New York, NY USA
Thank you for all of your help with my dissertation!!! Ya'll rock!!
— Miranda A., Houston, TX
I've tried your service, and I love it.
— Enrico S., Cassano D'Adda, Italy
EASY AND QUICK, VERY VERY ACCURATE!!
— Steve T., Baltimore, MD USA
Super easy interface, easy to upload and great results.
— Dan K., Seattle, OR, USA
I'd give Sonix a 10 mainly due to the accuracy.
— Cliff H., Auckland, New Zealand
Sonix is faster and better than YouTube at making captions for my videos!
— Francisco N., Concepcion, Chile
Blown away by what it does! Accuracy, ease of use, affordability, simple straightforward interface with well thought out additional tools and functions. Superb!
— Trey S., Houston, TX
99% accuracy. Every word matters.
AI transcription and translation in 54+ languages.