Fix music
Find out what's wrong with a song in plain words, then fix it: clicks, hum, crackle, a flipped side or the wrong speed. Free, in your browser, and nothing is uploaded.
Never uploaded. Everything runs in your browser.
Songs break differently
A song goes wrong in different ways from a voice. A bad cable adds hum, an old record adds crackle, and a cheap interface can push the whole waveform off centre. A wrong sample rate plays it fast and out of tune. A mix can come out with one side flipped, so the bass vanishes on a phone, or so wide it falls apart in mono.
This page runs the checks that matter for a song and grades them against music, not speech. A dark mix with soft highs counts as fine, and the volume is compared with the -14 LUFS that streaming services play songs at. Each fix runs only when its check hears the problem, so a clean song comes back untouched.
What this page checks on a song
Each one has its own page on why it happens and how far the fix goes. It also listens for echo, a dull top end, sound in one ear and wind, graded for a mix.
- FX-13“The waveform sits above the centre line, and every cut clicks.”Remove DC offset from audio
- FX-14“On a phone or one speaker, the singer and the bass almost disappear.”Fix out-of-phase audio
- FX-15“It sounds huge on headphones but thin and hollow on a phone.”Fix stereo width
- FX-16“The song plays a little fast and out of tune with the original.”Fix audio that plays too fast or too slow
- FX-17“A record crackles and rumbles, or a tape hisses.”Restore vinyl and tape recordings
- FX-18“The sound cuts out for a split second, like a skipping CD.”Fix audio dropouts
- FX-07“There's a low buzz under the music, even between the notes.”Remove hum from audio
- FX-09“It ticks, clicks or pops in places.”Remove clicks and pops from audio
- FX-04“The loud parts crackle or break up.”Fix distorted audio
- FX-02“There's hiss or noise under the music.”Remove background noise from audio
- FX-05“It's much quieter than other songs.”Fix audio that's too quiet
Off for songs: mic pops, harsh S sounds and loud breaths. These checks look for things only a voice does, so they are off here.
Music tools
For a song that isn't broken but needs work. Each runs on your device too.
- Music loudness normalizerSet a finished song to Spotify, Apple Music or YouTube loudness, with peaks held down.
- Music levelerBring a quiet verse up and a loud chorus down, slowly, over whole sections.
- Noise gateTurn down hiss or amp noise in the gaps between notes.
- Audio editorCut, move and fade clips, and duck a music bed under a voice automatically.
Vocal removal is coming. It will split a song into voice and backing inside your browser, with nothing uploaded. Until then, tonal.fm's vocal remover takes out whatever sits in the centre of a stereo mix.
Questions
Will this change how my song sounds?
Only where it hears a problem. Each fix runs only when its check flags something, and you can flip between before and after and turn AMOUNT down. On a clean song it says so and changes nothing. It doesn't master, EQ or add effects.
Can it fix a low-quality MP3?
No. A low-bitrate MP3 throws detail away when it's made, and nothing can put it back. You hear it as swirly cymbals and a watery top end. Go back to the original file or a better copy if you can. It can still fix clicks, hum or a quiet level on top of the MP3.
Does it upload my song?
No. The song is read and fixed inside this browser tab and never sent to us or anyone else. There's no account and no limit on how many songs you check.
Why are some checks off for music?
Mic pops, harsh S sounds and loud breaths are things only a voice does. In a song, kick drums, cymbals and synth swells can look like them, so those checks would cry wolf. They still run on the speech pages.
Can it remove the vocals from a song?
Not yet. A vocal remover that splits the song in your browser is coming. Until then, tonal.fm's vocal remover takes out whatever sits in the centre of a stereo mix, which is often the lead vocal.
Is there a music editor to cut and fade a song?
Yes. The free audio editor cuts, moves and fades clips on a four-track timeline, and can duck a music bed under a voice. Like this page, it runs on your device.