Load a video or audio file and create SRT/VTT captions manually. Your file stays entirely in your browser — nothing is uploaded.
Drop your video or audio here
or click to browse
Stays 100% on your device — never uploaded
Video preview with overlay
Captions appear over your video as you type — exactly how viewers will see them.
Keyboard-driven workflow
F5 marks in-point, F6 marks out-point and advances to the next caption automatically.
Export SRT & VTT
Download industry-standard caption files ready for YouTube, Vimeo, or any video platform.