Generate perfectly-timed Spanish subtitles for any video. Sonix creates SRT and VTT files ready for YouTube, Vimeo, Facebook, and all major video platforms.
Upload your video file from your computer, Dropbox, Google Drive, or paste a URL. Sonix supports MP4, MOV, AVI, and 40+ other video formats.
Sonix AI automatically transcribes the Spanish audio from your video with industry-leading accuracy. Speaker labels are added automatically.
Polish your transcript in our browser-based editor with synchronized video playback. Correct any errors and adjust timing as needed.
Fine-tune subtitle timing with our precision tools. Set line breaks, adjust duration, and ensure perfect synchronization with your video.
Download your Spanish subtitles in SRT or VTT format. Upload directly to YouTube, Vimeo, or any platform that accepts subtitle files.
SRT (SubRip) is the most widely compatible subtitle format, supported by most video players and platforms. VTT (WebVTT) is the HTML5 standard that supports styling and positioning. Sonix exports both formats so you can use whichever works best for your platform.
After downloading your SRT file from Sonix, go to YouTube Studio, select your video, click 'Subtitles', then 'Add Language' and choose Spanish. Click 'Add' under subtitles and upload your SRT file. YouTube will automatically sync the subtitles with your video.
Yes! Sonix provides precision timing tools in the editor. You can adjust start and end times for each subtitle line, set line breaks, and fine-tune synchronization. Changes are reflected in real-time as you watch the video.
Sonix delivers 85-99% accuracy for Spanish transcription depending on audio quality. Our timing algorithm ensures subtitles appear at exactly the right moment. You can review and edit in our browser-based editor before exporting.
VTT format supports basic styling like bold, italic, and positioning. For more advanced styling (fonts, colors, backgrounds), you'll need to use your video editing software or the platform's subtitle customization features after uploading.
There's no limit on the number of subtitle files you can create. Sonix charges per minute of audio/video transcribed, not per export. Create as many subtitle files as you need from a single transcription.
AI-powered timing algorithm ensures subtitles appear exactly when speakers talk, with precision down to the millisecond.
Review and edit your subtitles with synchronized video playback. Make changes and see results in real-time.
Export to SRT or VTT format compatible with YouTube, Vimeo, Facebook, and virtually every video platform.
Get your Spanish subtitles in minutes, not hours. Upload, transcribe, and export without waiting in queues.
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I cannot believe how easy, quick, and accurate this is.
Surprisingly accurate transcription across a number of European accents (Yorkshire, Scottish, Oxford, Italian!)
Sonix is a very user-friendly platform, and they are very transparent about what is included in the monthly fee... It's transcribed very fast and is quite ...
I tried several programs and Sonix was by far the best one.It gave me very accurate scripts
It is so user friendly! Even for someone like me who is not technologically inclined. And, bonus! It has literally saved me HOURS of time trying to transcribe lengthy practice coun...
The accuracy for the translation was the best from all the other sites and apps I tried.
Very high accuracy transcription with noisy tapes / accents. The ability to edit as you listen is incredible. I haven't been impressed with code to this extent sin...
Upload your video and get professional Spanish subtitles ready for any platform. Start with 30 minutes free—no credit card required.
AI transcription and translation in 53+ languages.
