Audio & video
Check video codecs, adjust subtitle timing, remove recording pauses and normalize podcast audio loudness.
WAV channel splitter
Split a stereo or multichannel WAV into separate mono WAV files. Choose all channels or one channel, preserve sample bytes and sample rate, and download a ZIP with a channel report.
Open tool →SRT and WebVTT converter
Convert SRT subtitles to WebVTT or VTT captions to SRT. Keep timestamps and basic formatting, with an optional plain text mode and conversion report.
Open tool →Video specification checker
Inspect video dimensions, codec, frame rate and audio details before delivery.
Open tool →Subtitle timing fixer
Align an SRT subtitle file with the speech timing of a recording.
Open tool →Podcast loudness normalizer
Adjust a recording toward a consistent loudness target.
Open tool →Recording pause remover
Remove quiet gaps from an audio recording using a silence threshold.
Open tool →Sheet music to MusicXML
Recognize printed sheet music and export editable MusicXML.
Open tool →Video converter
Convert videos between MP4, WebM, MOV, MKV and animated GIF with explicit codec settings.
Open tool →Video compressor
Reduce video size using a chosen resolution, quality or target size.
Open tool →HLS video packager
Create an HLS playlist and video segments in a downloadable ZIP.
Open tool →Crop video
Select a video region visually and export a cropped MP4.
Open tool →Trim video
Select start and end times and export the chosen video segment.
Open tool →Extract audio from video
Save a video soundtrack as MP3, AAC or Opus.
Open tool →Video thumbnail
Choose a video timestamp and save the frame as JPG or PNG.
Open tool →Merge videos
Join video clips in your chosen order into a single MP4.
Open tool →