Convert WEBM to SRT

Yes! Upload your downloaded WebM, Sonix transcribes the Opus audio with word-level timestamps, then export to SRT format. Perfect for creating your own subtitles for YouTube content.

Sonix generates word-level timestamps from WebM audio with precision within a few hundred milliseconds. Opus audio, common in modern WebM files, produces excellent timing accuracy.

Yes! Create subtitles from your WebM using Sonix, export as SRT, then upload to YouTube's caption settings. Works whether you're the content creator or contributing community subtitles.

For HTML5 video, use a track element pointing to your SRT (or better, convert to VTT). Most HTML5 players can display subtitles alongside your WebM video.

Yes! Enable speaker detection when exporting to SRT. Perfect for podcasts, interviews, multi-person tutorials, and educational content.

Record in OBS with WebM/Opus, upload to Sonix, transcribe, edit timing if needed, export SRT. Add the SRT to your video in editing software or upload separately to your platform.

Many desktop editing applications do not include VP8/VP9 decoders, so WebM files may need conversion to MP4 before importing, even though browsers and players like VLC handle them natively.

Upload the WebM file for transcription, review and edit the resulting transcript, then export it as an SRT or VTT caption file that most video players and platforms accept.