Audio Tools

Convert, trim, merge and clean up audio - 20 working tools

Audio ConverterConvert audio between WAV (16/24/32-bit) and MP3, change sample rate and channels. Works offline in your browser.
MP3 CompressorMake audio files smaller by re-encoding to MP3 at a lower bitrate, optionally mono or lower sample rate, or to a target file size.
Audio TrimmerCut audio: keep only a selected part, or delete a part from the middle. Pick the region on the waveform or type exact times.
Audio MergerJoin several audio files into one, in the order you choose, with optional crossfade, gaps and loudness matching.
Audio Speed ChangerSpeed up or slow down audio from 0.25x to 4x, either keeping the pitch (time-stretch) or changing pitch like a tape.
Audio Pitch ChangerRaise or lower the pitch by up to 12 semitones without changing the duration (WSOLA time-stretch plus resampling).
Volume BoosterMake quiet audio louder (or quieter) by up to +30 dB, with an optional peak limiter that prevents harsh clipping.
Loudness NormalizerNormalize audio to a target peak level or to a target loudness in LUFS (ITU-R BS.1770 approximation) for podcasts, streaming and video.
Silence RemoverDetect and cut silent gaps in audio (or trim only the start and end). Adjustable threshold, minimum length and padding.
Audio Fade In / Fade OutAdd a fade-in at the start and a fade-out at the end of audio (or of a selected part) with linear, sine, exponential or S-curve shapes.
Audio ReverserPlay audio backwards: reverse a whole file or just a selected part.
Noise ReducerReduce steady background noise (hiss, hum, fans) with a spectral gate that learns the noise from a quiet part of your recording.
Karaoke Maker (Center Channel Remover)Reduce vocals by cancelling sound that is identical in the left and right channels. Not true vocal separation: works only on some stereo recordings.
Voice EnhancerClean up spoken audio: remove low rumble (high-pass), add presence with EQ, even out volume with a compressor and set a consistent level.
BPM & Key DetectorEstimate the tempo (BPM) and musical key of a song or loop. Estimates only: best for steady-tempo music with clear beats.
Spectrogram ViewerDraw a spectrogram (frequency over time) of your audio with adjustable FFT size, scale and colours, and save it as a PNG image.
Audio SplitterSplit one audio file into several parts at fixed lengths, equal parts, silences or your own markers, and download them as a ZIP.
Voice RecorderRecord from your microphone in the browser and save as WAV or MP3. Pause and resume, live level meter, nothing is uploaded.
Audio Metadata EditorEdit tags in MP3 (ID3v2: title, artist, album, year, genre, track, comment, cover art) and WAV files (INFO) without re-encoding the audio.
Waveform EditorEdit audio visually: select, cut, copy, paste, delete, silence, reverse, fade, amplify and normalize with undo and zoom. Export as WAV or MP3.