Subtitle Generator & Sync
VideoExtract captions using Web Speech engines, edit timestamps manually, and export .srt / .vtt tracks.
Upload Media for Captions
Supports MP4, WEBM, MOV, MP3, WAV up to 150MB
How to use the Subtitle Generator
Follow these simple steps to process your files locally in seconds.
Upload your audio or video media file.
Use Auto-Transcribe to convert spoken words to text dynamically during video playback, or add caption blocks manually.
Tweak the start and end timestamp ranges for each caption card on the right-hand panel.
Export your synchronized tracks as standard SubRip (.srt) or WebVTT (.vtt) files instantly.
All calculations run exclusively inside your browser. No files are ever sent to our servers.
Your data remains entirely yours. Ideal for processing sensitive business or personal files safely.
No account registration, no file size limitations, and no watermarks added to final results.
Frequently Asked Questions
Got questions about using the Subtitle Generator? Find answers here.