Audio Joiner
Joins audio files end to end or mixes them onto one timeline with per-track gain.
Drop audio files to join, in order
Different formats and sample rates are fine — everything is decoded, resampled to the highest rate present, and joined as one WAV.
Everything happens in this tab. The files are never uploaded.
Feed it from
Audio Trimmer
Cuts a section out of an audio file on the waveform, with fade in and fade out.
Loudness Normaliser
Measures integrated loudness and true peak, then normalises to a target LUFS such as -14 or -16.
Vocoder
Dudley’s channel vocoder: splits a voice into N bands, follows each band’s envelope and paints it onto music or a built-in synth drone. Controls for band count, attack, release, formant tilt, sibilance pass-through and dry/wet.
Video Editor
Assembles clips into a YouTube or Shorts upload in the browser: trim, order, transitions, a music bed and subtitles. Same-batch AI clips with hard cuts export losslessly without re-encoding.
Next
These accept what this tool produces, so the result can go straight in.
Audio Converter
Converts between MP3, WAV, FLAC, AAC, OGG and Opus with bitrate and sample-rate settings.
Loudness Normaliser
Measures integrated loudness and true peak, then normalises to a target LUFS such as -14 or -16.
Audio Trimmer
Cuts a section out of an audio file on the waveform, with fade in and fade out.
Extract Audio from Video
Pulls the audio track out of a video as MP3, WAV, M4A or FLAC, or copies it without re-encoding.
Burn Subtitles
Renders an SRT, VTT, ASS or SMI file permanently into the video frames with size, position, colour and outline control, drawn with the browser’s own fonts so Korean needs nothing extra.
Video Compressor
Re-encodes to a target file size or a quality preset, stepping the resolution down when the bitrate would starve it, and shows the projected size before it starts and the actual size after.