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Trim, join, normalise, record and inspect audio.
Edit
Cut an MP3, WAV or other audio file to the part you want: drag across the waveform, fine-tune the times, and save as MP3 or WAV — in your browser.
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Join several audio files into one, in the order you choose, with optional gaps or crossfades — mixed formats and sample rates are handled for you.
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Split an audio file into parts at points you click, into equal parts, every N seconds or at silences, and download each part or all of them as a ZIP.
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Make audio louder or quieter by decibels, normalise to a peak level, or to a loudness target (LUFS) for Spotify, YouTube, Apple Music or podcasts.
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Add a fade-in and fade-out to audio with linear, exponential, logarithmic, equal-power or S-curve shapes, and hear the result before saving.
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Speed up or slow down audio without changing the pitch — or tape-style, where pitch follows speed — from 0.25× to 4×.
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Shift the pitch of a song or recording up or down by semitones and cents while keeping its length — to change key or practise along.
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Play any audio file backwards — hear it instantly, then save it as MP3 or WAV. Runs in your browser.
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Find the silent gaps in audio with an adjustable threshold, list them, and remove them or shorten them to a set length — great for podcasts and voice notes.
Open tool →Visualize
Turn a song or recording into a waveform image — bars, envelope or classic, your colours and size — and download it as PNG or SVG.
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See the frequencies in an audio file over time, or live from your microphone, with adjustable FFT size, log or linear axis, and PNG export.
Open tool →Inspect
View the tags and technical details of any audio file, and edit MP3 ID3 tags — title, artist, album, track, genre, lyrics and cover art — without re-encoding.
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Pull the embedded cover art out of MP3, FLAC, M4A and other audio files — one file or a whole folder — and download the original images or a ZIP.
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Work out an audio file's size from bitrate and length, the bitrate from size and length, or how long fits in a given size — with MP3, AAC, FLAC and WAV compared.
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