Audio Trimmer
Cuts a section out of an audio file on the waveform, with fade in and fade out.
Drop audio to trim
Drag across the waveform to choose a section, then fade it in and out. Useful for ringtones, samples and cutting the dead air off a recording.
Everything happens in this tab. Nothing is uploaded.
Feed it from
Waveform Renderer
Draws the waveform of an audio file as an image or SVG with colour and size options.
Audio Converter
Converts between MP3, WAV, FLAC, AAC, OGG and Opus with bitrate and sample-rate settings.
Audio Joiner
Joins audio files end to end or mixes them onto one timeline with per-track gain.
Tempo & Pitch
Changes playback speed without shifting pitch, or transposes pitch without changing length.
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.
Audio Joiner
Joins audio files end to end or mixes them onto one timeline with per-track gain.
Loudness Normaliser
Measures integrated loudness and true peak, then normalises to a target LUFS such as -14 or -16.
Waveform Renderer
Draws the waveform of an audio file as an image or SVG with colour and size options.
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.